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<div class="book with-summary">
<div class="head">
<div class="head_box">
<h1 class="logo"><a href="javascript:;" title="_('微信公众平台 小程序')"></a></h1>
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<ul class="top_nav">
<li class="top_nav_item dropdown" id="js_selected_introduction">
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<a class="top_nav_link" href="https://developers.weixin.qq.com/minigame/introduction/index.html?t=18110615">小游戏介绍</a>
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<a class="top_nav_item_title top_nav_link" href="https://developers.weixin.qq.com/miniprogram/product/index.html?t=18110615">运营</a>
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<a class="top_nav_link" href="https://developers.weixin.qq.com/miniprogram/analysis/index.html?t=18110615">小程序数据</a>
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<li class="sub_nav_item" data-level="1.1" data-path="../../"><a href="../../">简易教程</a></li>
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</ul>
</div>
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<a href="https://developers.weixin.qq.com/miniprogram/dev/api/canvas/clear-rect.html?t=18110615" class="lang-tab__nav">中文</a><span class="split-line">/</span>
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<li class="chapter open" data-level="1.4.1" data-path="../api-network.html" data-name="网络"><a href="../api-network.html">网络</a>
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<li class="chapter" data-level="1.4.1.2.1" data-path="../network-file.html" data-name="wx.uploadFile"><a href="../network-file.html#wxuploadfileobject">wx.uploadFile</a></li>
<li class="chapter" data-level="1.4.1.2.2" data-path="../network-file.html" data-name="wx.downloadFile"><a href="../network-file.html#wxdownloadfileobject">wx.downloadFile</a></li>
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<li class="chapter" data-level="1.4.1.3" data-path="../network-socket.html" data-name="WebSocket"><a href="../network-socket.html">WebSocket</a>
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<li class="chapter" data-level="1.4.1.3.1" data-path="../network-socket.html" data-name="wx.connectSocket"><a href="../network-socket.html#wxconnectsocketobject">wx.connectSocket</a></li>
<li class="chapter" data-level="1.4.1.3.2" data-path="../network-socket.html" data-name="wx.onSocketOpen"><a href="../network-socket.html#wxonsocketopencallback">wx.onSocketOpen</a></li>
<li class="chapter" data-level="1.4.1.3.3" data-path="../network-socket.html" data-name="wx.onSocketError"><a href="../network-socket.html#wxonsocketerrorcallback">wx.onSocketError</a></li>
<li class="chapter" data-level="1.4.1.3.4" data-path="../network-socket.html" data-name="wx.sendSocketMessage"><a href="../network-socket.html#wxsendsocketmessageobject">wx.sendSocketMessage</a></li>
<li class="chapter" data-level="1.4.1.3.5" data-path="../network-socket.html" data-name="wx.onSocketMessage"><a href="../network-socket.html#wxonsocketmessagecallback">wx.onSocketMessage</a></li>
<li class="chapter" data-level="1.4.1.3.6" data-path="../network-socket.html" data-name="wx.closeSocket"><a href="../network-socket.html#wxclosesocket">wx.closeSocket</a></li>
<li class="chapter" data-level="1.4.1.3.7" data-path="../network-socket.html" data-name="wx.onSocketClose"><a href="../network-socket.html#wxonsocketclosecallback">wx.onSocketClose</a></li>
<li class="chapter" data-level="1.4.1.3.8" data-path="../socket-task.html" data-name="SocketTask"><a href="../socket-task.html">SocketTask</a></li>
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<li class="chapter open" data-level="1.4.2" data-path="../media-picture.html" data-name="媒体"><a href="../media-picture.html">媒体</a>
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<li class="chapter" data-level="1.4.2.1" data-path="../media-picture.html" data-name="图片"><a href="../media-picture.html">图片</a>
<ul class="articles">
<li class="chapter" data-level="1.4.2.1.1" data-path="../media-picture.html" data-name="wx.chooseImage"><a href="../media-picture.html#wxchooseimageobject">wx.chooseImage</a></li>
<li class="chapter" data-level="1.4.2.1.2" data-path="../media-picture.html" data-name="wx.previewImage"><a href="../media-picture.html#wxpreviewimageobject">wx.previewImage</a></li>
<li class="chapter" data-level="1.4.2.1.3" data-path="../media-picture.html" data-name="wx.getImageInfo"><a href="../media-picture.html#wxgetimageinfoobject">wx.getImageInfo</a></li>
<li class="chapter" data-level="1.4.2.1.4" data-path="../media-picture.html" data-name="wx.saveImageToPhotosAlbum"><a href="../media-picture.html#wxsaveimagetophotosalbumobject">wx.saveImageToPhotosAlbum</a></li>
</ul></li>
<li class="chapter" data-level="1.4.2.2" data-path="../media-record.html" data-name="录音"><a href="../media-record.html">录音</a>
<ul class="articles">
<li class="chapter" data-level="1.4.2.2.1" data-path="../media-record.html" data-name="wx.startRecord"><a href="../media-record.html#wxstartrecordobject">wx.startRecord</a></li>
<li class="chapter" data-level="1.4.2.2.2" data-path="../media-record.html" data-name="wx.stopRecord"><a href="../media-record.html#wxstoprecord">wx.stopRecord</a></li>
</ul></li>
<li class="chapter" data-level="1.4.2.3" data-path="../getRecorderManager.html" data-name="录音管理"><a href="../getRecorderManager.html">录音管理</a>
<ul class="articles">
<li class="chapter" data-level="1.4.2.3.1" data-path="../getRecorderManager.html" data-name="wx.getRecorderManager"><a href="../getRecorderManager.html">wx.getRecorderManager</a></li>
</ul></li>
<li class="chapter" data-level="1.4.2.4" data-path="../media-voice.html" data-name="音频播放控制"><a href="../media-voice.html">音频播放控制</a>
<ul class="articles">
<li class="chapter" data-level="1.4.2.4.1" data-path="../media-voice.html" data-name="wx.playVoice"><a href="../media-voice.html#wxplayvoiceobject">wx.playVoice</a></li>
<li class="chapter" data-level="1.4.2.4.2" data-path="../media-voice.html" data-name="wx.pauseVoice"><a href="../media-voice.html#wxpausevoice">wx.pauseVoice</a></li>
<li class="chapter" data-level="1.4.2.4.3" data-path="../media-voice.html" data-name="wx.stopVoice"><a href="../media-voice.html#wxstopvoice">wx.stopVoice</a></li>
</ul></li>
<li class="chapter" data-level="1.4.2.5" data-path="../media-background-audio.html" data-name="音乐播放控制"><a href="../media-background-audio.html">音乐播放控制</a>
<ul class="articles">
<li class="chapter" data-level="1.4.2.5.1" data-path="../media-background-audio.html" data-name="wx.getBackgroundAudioPlayerState"><a href="../media-background-audio.html#wxgetbackgroundaudioplayerstateobject">wx.getBackgroundAudioPlayerState</a></li>
<li class="chapter" data-level="1.4.2.5.2" data-path="../media-background-audio.html" data-name="wx.playBackgroundAudio"><a href="../media-background-audio.html#wxplaybackgroundaudioobject">wx.playBackgroundAudio</a></li>
<li class="chapter" data-level="1.4.2.5.3" data-path="../media-background-audio.html" data-name="wx.pauseBackgroundAudio"><a href="../media-background-audio.html#wxpausebackgroundaudio">wx.pauseBackgroundAudio</a></li>
<li class="chapter" data-level="1.4.2.5.4" data-path="../media-background-audio.html" data-name="wx.seekBackgroundAudio"><a href="../media-background-audio.html#wxseekbackgroundaudioobject">wx.seekBackgroundAudio</a></li>
<li class="chapter" data-level="1.4.2.5.5" data-path="../media-background-audio.html" data-name="wx.stopBackgroundAudio"><a href="../media-background-audio.html#wxstopbackgroundaudio">wx.stopBackgroundAudio</a></li>
<li class="chapter" data-level="1.4.2.5.6" data-path="../media-background-audio.html" data-name="wx.onBackgroundAudioPlay"><a href="../media-background-audio.html#wxonbackgroundaudioplaycallback">wx.onBackgroundAudioPlay</a></li>
<li class="chapter" data-level="1.4.2.5.7" data-path="../media-background-audio.html" data-name="wx.onBackgroundAudioPause"><a href="../media-background-audio.html#wxonbackgroundaudiopausecallback">wx.onBackgroundAudioPause</a></li>
<li class="chapter" data-level="1.4.2.5.8" data-path="../media-background-audio.html" data-name="wx.onBackgroundAudioStop"><a href="../media-background-audio.html#wxonbackgroundaudiostopcallback">wx.onBackgroundAudioStop</a></li>
</ul></li>
<li class="chapter" data-level="1.4.2.6" data-path="../getBackgroundAudioManager.html" data-name="背景音频播放管理"><a href="../getBackgroundAudioManager.html">背景音频播放管理</a>
<ul class="articles">
<li class="chapter" data-level="1.4.2.6.1" data-path="../getBackgroundAudioManager.html" data-name="wx.getBackgroundAudioManager"><a href="../getBackgroundAudioManager.html">wx.getBackgroundAudioManager</a></li>
</ul></li>
<li class="chapter" data-level="1.4.2.7" data-path="../api-audio.html" data-name="音频组件控制"><a href="../api-audio.html">音频组件控制</a>
<ul class="articles">
<li class="chapter" data-level="1.4.2.7.1" data-path="../api-audio.html" data-name="wx.createAudioContext"><a href="../api-audio.html#wxcreateaudiocontextaudioid">wx.createAudioContext</a></li>
<li class="chapter" data-level="1.4.2.7.2" data-path="../createInnerAudioContext.html" data-name="wx.createInnerAudioContext"><a href="../createInnerAudioContext.html">wx.createInnerAudioContext</a></li>
<li class="chapter" data-level="1.4.2.7.3" data-path="../getAvailableAudioSources.html" data-name="wx.getAvailableAudioSources"><a href="../getAvailableAudioSources.html">wx.getAvailableAudioSources</a></li>
</ul></li>
<li class="chapter" data-level="1.4.2.8" data-path="../media-video.html" data-name="视频"><a href="../media-video.html">视频</a>
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<li class="chapter" data-level="1.4.2.8.2" data-path="../media-video.html" data-name="wx.saveVideoToPhotosAlbum"><a href="../media-video.html#wxsavevideotophotosalbumobject">wx.saveVideoToPhotosAlbum</a></li>
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<li class="chapter" data-level="1.4.2.9" data-path="../api-video.html" data-name="视频组件控制"><a href="../api-video.html">视频组件控制</a>
<ul class="articles">
<li class="chapter" data-level="1.4.2.9.1" data-path="../api-video.html" data-name="wx.createVideoContext"><a href="../api-video.html#wxcreatevideocontextvideoid">wx.createVideoContext</a></li>
</ul></li>
<li class="chapter" data-level="1.4.2.10" data-path="../api-camera.html" data-name="相机组件控制"><a href="../api-camera.html">相机组件控制</a>
<ul class="articles">
<li class="chapter" data-level="1.4.2.10.1" data-path="../api-camera.html" data-name="wx.createCameraContext"><a href="../api-camera.html">wx.createCameraContext</a></li>
</ul></li>
<li class="chapter" data-level="1.4.2.11" data-path="../api-live-player.html" data-name="实时音视频"><a href="../api-live-player.html">实时音视频</a>
<ul class="articles">
<li class="chapter" data-level="1.4.2.11.1" data-path="../api-live-player.html" data-name="wx.createLivePlayerContext"><a href="../api-live-player.html">wx.createLivePlayerContext</a></li>
<li class="chapter" data-level="1.4.2.11.2" data-path="../api-live-pusher.html" data-name="wx.createLivePusherContext"><a href="../api-live-pusher.html">wx.createLivePusherContext</a></li>
</ul></li>
<li class="chapter" data-level="1.4.2.12" data-path="../media-fontFace.html" data-name="动态加载字体"><a href="../media-fontFace.html">动态加载字体</a>
<ul class="articles">
<li class="chapter" data-level="1.4.2.12.1" data-path="../media-fontFace.html" data-name="wx.loadFontFace"><a href="../media-fontFace.html">wx.loadFontFace</a></li>
</ul></li>
</ul></li>
<li class="chapter open" data-level="1.4.3" data-path="../file.html" data-name="文件"><a href="../file.html">文件</a>
<ul class="articles">
<li class="chapter" data-level="1.4.3.1" data-path="../file.html" data-name="wx.saveFile"><a href="../file.html#wxsavefileobject">wx.saveFile</a></li>
<li class="chapter" data-level="1.4.3.2" data-path="../getFileInfo.html" data-name="wx.getFileInfo"><a href="../getFileInfo.html">wx.getFileInfo</a></li>
<li class="chapter" data-level="1.4.3.3" data-path="../file.html" data-name="wx.getSavedFileList"><a href="../file.html#wxgetsavedfilelistobject">wx.getSavedFileList</a></li>
<li class="chapter" data-level="1.4.3.4" data-path="../file.html" data-name="wx.getSavedFileInfo"><a href="../file.html#wxgetsavedfileinfoobject">wx.getSavedFileInfo</a></li>
<li class="chapter" data-level="1.4.3.5" data-path="../file.html" data-name="wx.removeSavedFile"><a href="../file.html#wxremovesavedfileobject">wx.removeSavedFile</a></li>
<li class="chapter" data-level="1.4.3.6" data-path="../file.html" data-name="wx.openDocument"><a href="../file.html#wxopendocumentobject">wx.openDocument</a></li>
<li class="chapter" data-level="1.4.3.7" data-path="../file/FileSystemManager.html" data-name="文件管理器"><a href="../file/FileSystemManager.html">文件管理器</a>
<ul class="articles">
<li class="chapter" data-level="1.4.3.7.1" data-path="../file/FileSystemManager.html" data-name="FileSystemManager"><a href="../file/FileSystemManager.html">FileSystemManager</a></li>
<li class="chapter" data-level="1.4.3.7.2" data-path="../file/wx.getFileSystemManager.html" data-name="wx.getFileSystemManager"><a href="../file/wx.getFileSystemManager.html">wx.getFileSystemManager</a></li>
<li class="chapter" data-level="1.4.3.7.3" data-path="../file/FileSystemManager.appendFile.html" data-name="FileSystemManager.appendFile"><a href="../file/FileSystemManager.appendFile.html">FileSystemManager.appendFile</a></li>
<li class="chapter" data-level="1.4.3.7.4" data-path="../file/FileSystemManager.access.html" data-name="FileSystemManager.access"><a href="../file/FileSystemManager.access.html">FileSystemManager.access</a></li>
<li class="chapter" data-level="1.4.3.7.5" data-path="../file/FileSystemManager.accessSync.html" data-name="FileSystemManager.accessSync"><a href="../file/FileSystemManager.accessSync.html">FileSystemManager.accessSync</a></li>
<li class="chapter" data-level="1.4.3.7.6" data-path="../file/FileSystemManager.appendFileSync.html" data-name="FileSystemManager.appendFileSync"><a href="../file/FileSystemManager.appendFileSync.html">FileSystemManager.appendFileSync</a></li>
<li class="chapter" data-level="1.4.3.7.7" data-path="../file/FileSystemManager.copyFile.html" data-name="FileSystemManager.copyFile"><a href="../file/FileSystemManager.copyFile.html">FileSystemManager.copyFile</a></li>
<li class="chapter" data-level="1.4.3.7.8" data-path="../file/FileSystemManager.copyFileSync.html" data-name="FileSystemManager.copyFileSync"><a href="../file/FileSystemManager.copyFileSync.html">FileSystemManager.copyFileSync</a></li>
<li class="chapter" data-level="1.4.3.7.9" data-path="../file/FileSystemManager.getSavedFileList.html" data-name="FileSystemManager.getSavedFileList"><a href="../file/FileSystemManager.getSavedFileList.html">FileSystemManager.getSavedFileList</a></li>
<li class="chapter" data-level="1.4.3.7.10" data-path="../file/FileSystemManager.getFileInfo.html" data-name="FileSystemManager.getFileInfo"><a href="../file/FileSystemManager.getFileInfo.html">FileSystemManager.getFileInfo</a></li>
<li class="chapter" data-level="1.4.3.7.11" data-path="../file/FileSystemManager.mkdir.html" data-name="FileSystemManager.mkdir"><a href="../file/FileSystemManager.mkdir.html">FileSystemManager.mkdir</a></li>
<li class="chapter" data-level="1.4.3.7.12" data-path="../file/FileSystemManager.mkdirSync.html" data-name="FileSystemManager.mkdirSync"><a href="../file/FileSystemManager.mkdirSync.html">FileSystemManager.mkdirSync</a></li>
<li class="chapter" data-level="1.4.3.7.13" data-path="../file/FileSystemManager.removeSavedFile.html" data-name="FileSystemManager.removeSavedFile"><a href="../file/FileSystemManager.removeSavedFile.html">FileSystemManager.removeSavedFile</a></li>
<li class="chapter" data-level="1.4.3.7.14" data-path="../file/FileSystemManager.readFileSync.html" data-name="FileSystemManager.readFileSync"><a href="../file/FileSystemManager.readFileSync.html">FileSystemManager.readFileSync</a></li>
<li class="chapter" data-level="1.4.3.7.15" data-path="../file/FileSystemManager.renameSync.html" data-name="FileSystemManager.renameSync"><a href="../file/FileSystemManager.renameSync.html">FileSystemManager.renameSync</a></li>
<li class="chapter" data-level="1.4.3.7.16" data-path="../file/FileSystemManager.rmdirSync.html" data-name="FileSystemManager.rmdirSync"><a href="../file/FileSystemManager.rmdirSync.html">FileSystemManager.rmdirSync</a></li>
<li class="chapter" data-level="1.4.3.7.17" data-path="../file/FileSystemManager.readdir.html" data-name="FileSystemManager.readdir"><a href="../file/FileSystemManager.readdir.html">FileSystemManager.readdir</a></li>
<li class="chapter" data-level="1.4.3.7.18" data-path="../file/FileSystemManager.rename.html" data-name="FileSystemManager.rename"><a href="../file/FileSystemManager.rename.html">FileSystemManager.rename</a></li>
<li class="chapter" data-level="1.4.3.7.19" data-path="../file/FileSystemManager.readFile.html" data-name="FileSystemManager.readFile"><a href="../file/FileSystemManager.readFile.html">FileSystemManager.readFile</a></li>
<li class="chapter" data-level="1.4.3.7.20" data-path="../file/FileSystemManager.rmdir.html" data-name="FileSystemManager.rmdir"><a href="../file/FileSystemManager.rmdir.html">FileSystemManager.rmdir</a></li>
<li class="chapter" data-level="1.4.3.7.21" data-path="../file/FileSystemManager.readdirSync.html" data-name="FileSystemManager.readdirSync"><a href="../file/FileSystemManager.readdirSync.html">FileSystemManager.readdirSync</a></li>
<li class="chapter" data-level="1.4.3.7.22" data-path="../file/FileSystemManager.saveFile.html" data-name="FileSystemManager.saveFile"><a href="../file/FileSystemManager.saveFile.html">FileSystemManager.saveFile</a></li>
<li class="chapter" data-level="1.4.3.7.23" data-path="../file/FileSystemManager.saveFileSync.html" data-name="FileSystemManager.saveFileSync"><a href="../file/FileSystemManager.saveFileSync.html">FileSystemManager.saveFileSync</a></li>
<li class="chapter" data-level="1.4.3.7.24" data-path="../file/FileSystemManager.stat.html" data-name="FileSystemManager.stat"><a href="../file/FileSystemManager.stat.html">FileSystemManager.stat</a></li>
<li class="chapter" data-level="1.4.3.7.25" data-path="../file/FileSystemManager.statSync.html" data-name="FileSystemManager.statSync"><a href="../file/FileSystemManager.statSync.html">FileSystemManager.statSync</a></li>
<li class="chapter" data-level="1.4.3.7.26" data-path="../file/Stats.html" data-name="Stats"><a href="../file/Stats.html">Stats</a></li>
<li class="chapter" data-level="1.4.3.7.27" data-path="../file/Stats.isDirectory.html" data-name="Stats.isDirectory"><a href="../file/Stats.isDirectory.html">Stats.isDirectory</a></li>
<li class="chapter" data-level="1.4.3.7.28" data-path="../file/Stats.isFile.html" data-name="Stats.isFile"><a href="../file/Stats.isFile.html">Stats.isFile</a></li>
<li class="chapter" data-level="1.4.3.7.29" data-path="../file/FileSystemManager.unlink.html" data-name="FileSystemManager.unlink"><a href="../file/FileSystemManager.unlink.html">FileSystemManager.unlink</a></li>
<li class="chapter" data-level="1.4.3.7.30" data-path="../file/FileSystemManager.unzip.html" data-name="FileSystemManager.unzip"><a href="../file/FileSystemManager.unzip.html">FileSystemManager.unzip</a></li>
<li class="chapter" data-level="1.4.3.7.31" data-path="../file/FileSystemManager.unlinkSync.html" data-name="FileSystemManager.unlinkSync"><a href="../file/FileSystemManager.unlinkSync.html">FileSystemManager.unlinkSync</a></li>
<li class="chapter" data-level="1.4.3.7.32" data-path="../file/FileSystemManager.writeFile.html" data-name="FileSystemManager.writeFile"><a href="../file/FileSystemManager.writeFile.html">FileSystemManager.writeFile</a></li>
<li class="chapter" data-level="1.4.3.7.33" data-path="../file/FileSystemManager.writeFileSync.html" data-name="FileSystemManager.writeFileSync"><a href="../file/FileSystemManager.writeFileSync.html">FileSystemManager.writeFileSync</a></li>
</ul></li>
</ul></li>
<li class="chapter open" data-level="1.4.4" data-path="../data.html" data-name="数据缓存"><a href="../data.html">数据缓存</a>
<ul class="articles">
<li class="chapter" data-level="1.4.4.1" data-path="../data.html" data-name="wx.setStorage"><a href="../data.html#wxsetstorageobject">wx.setStorage</a></li>
<li class="chapter" data-level="1.4.4.2" data-path="../data.html" data-name="wx.setStorageSync"><a href="../data.html#wxsetstoragesynckeydata">wx.setStorageSync</a></li>
<li class="chapter" data-level="1.4.4.3" data-path="../data.html" data-name="wx.getStorage"><a href="../data.html#wxgetstorageobject">wx.getStorage</a></li>
<li class="chapter" data-level="1.4.4.4" data-path="../data.html" data-name="wx.getStorageSync"><a href="../data.html#wxgetstoragesynckey">wx.getStorageSync</a></li>
<li class="chapter" data-level="1.4.4.5" data-path="../data.html" data-name="wx.getStorageInfo"><a href="../data.html#wxgetstorageinfoobject">wx.getStorageInfo</a></li>
<li class="chapter" data-level="1.4.4.6" data-path="../data.html" data-name="wx.getStorageInfoSync"><a href="../data.html#wxgetstorageinfosync">wx.getStorageInfoSync</a></li>
<li class="chapter" data-level="1.4.4.7" data-path="../data.html" data-name="wx.removeStorage"><a href="../data.html#wxremovestorageobject">wx.removeStorage</a></li>
<li class="chapter" data-level="1.4.4.8" data-path="../data.html" data-name="wx.removeStorageSync"><a href="../data.html#wxremovestoragesynckey">wx.removeStorageSync</a></li>
<li class="chapter" data-level="1.4.4.9" data-path="../data.html" data-name="wx.clearStorage"><a href="../data.html#wxclearstorage">wx.clearStorage</a></li>
<li class="chapter" data-level="1.4.4.10" data-path="../data.html" data-name="wx.clearStorageSync"><a href="../data.html#wxclearstoragesync">wx.clearStorageSync</a></li>
</ul></li>
<li class="chapter open" data-level="1.4.5" data-path="../location.html" data-name="位置"><a href="../location.html">位置</a>
<ul class="articles">
<li class="chapter" data-level="1.4.5.1" data-path="../location.html" data-name="获取位置"><a href="../location.html">获取位置</a>
<ul class="articles">
<li class="chapter" data-level="1.4.5.1.1" data-path="../location.html" data-name="wx.getLocation"><a href="../location.html#wxgetlocationobject">wx.getLocation</a></li>
<li class="chapter" data-level="1.4.5.1.2" data-path="../location.html" data-name="wx.chooseLocation"><a href="../location.html#wxchooselocationobject">wx.chooseLocation</a></li>
</ul></li>
<li class="chapter" data-level="1.4.5.2" data-path="../location.html" data-name="查看位置"><a href="../location.html#wxopenlocationobject">查看位置</a>
<ul class="articles">
<li class="chapter" data-level="1.4.5.2.1" data-path="../location.html" data-name="wx.openLocation"><a href="../location.html#wxopenlocationobject">wx.openLocation</a></li>
</ul></li>
<li class="chapter" data-level="1.4.5.3" data-path="../api-map.html" data-name="地图组件控制"><a href="../api-map.html">地图组件控制</a>
<ul class="articles">
<li class="chapter" data-level="1.4.5.3.1" data-path="../api-map.html" data-name="wx.createMapContext"><a href="../api-map.html#wxcreatemapcontextmapid">wx.createMapContext</a></li>
</ul></li>
</ul></li>
<li class="chapter open" data-level="1.4.6" data-path="../systeminfo.html" data-name="设备"><a href="../systeminfo.html">设备</a>
<ul class="articles">
<li class="chapter" data-level="1.4.6.1" data-path="../systeminfo.html" data-name="系统信息"><a href="../systeminfo.html">系统信息</a>
<ul class="articles">
<li class="chapter" data-level="1.4.6.1.1" data-path="../systeminfo.html" data-name="wx.getSystemInfo"><a href="../systeminfo.html#wxgetsysteminfoobject">wx.getSystemInfo</a></li>
<li class="chapter" data-level="1.4.6.1.2" data-path="../systeminfo.html" data-name="wx.getSystemInfoSync"><a href="../systeminfo.html#wxgetsysteminfosync">wx.getSystemInfoSync</a></li>
<li class="chapter" data-level="1.4.6.1.3" data-path="../api-caniuse.html" data-name="wx.canIUse"><a href="../api-caniuse.html">wx.canIUse</a></li>
</ul></li>
<li class="chapter" data-level="1.4.6.2" data-path="../memory.html" data-name="内存"><a href="../memory.html">内存</a>
<ul class="articles">
<li class="chapter" data-level="1.4.6.2.1" data-path="../memory.html" data-name="wx.onMemoryWarning"><a href="../memory.html">wx.onMemoryWarning</a></li>
</ul></li>
<li class="chapter" data-level="1.4.6.3" data-path="../device.html" data-name="网络状态"><a href="../device.html">网络状态</a>
<ul class="articles">
<li class="chapter" data-level="1.4.6.3.1" data-path="../device.html" data-name="wx.getNetworkType"><a href="../device.html#wxgetnetworktypeobject">wx.getNetworkType</a></li>
<li class="chapter" data-level="1.4.6.3.2" data-path="../device.html" data-name="wx.onNetworkStatusChange"><a href="../device.html#wxonnetworkstatuschangecallback">wx.onNetworkStatusChange</a></li>
</ul></li>
<li class="chapter" data-level="1.4.6.4" data-path="../accelerometer.html" data-name="加速度计"><a href="../accelerometer.html">加速度计</a>
<ul class="articles">
<li class="chapter" data-level="1.4.6.4.1" data-path="../accelerometer.html" data-name="wx.onAccelerometerChange"><a href="../accelerometer.html#wxonaccelerometerchangecallback">wx.onAccelerometerChange</a></li>
<li class="chapter" data-level="1.4.6.4.2" data-path="../accelerometer.html" data-name="wx.startAccelerometer"><a href="../accelerometer.html#wxstartaccelerometerobject">wx.startAccelerometer</a></li>
<li class="chapter" data-level="1.4.6.4.3" data-path="../accelerometer.html" data-name="wx.stopAccelerometer"><a href="../accelerometer.html#wxstopaccelerometerobject">wx.stopAccelerometer</a></li>
</ul></li>
<li class="chapter" data-level="1.4.6.5" data-path="../compass.html" data-name="罗盘"><a href="../compass.html">罗盘</a>
<ul class="articles">
<li class="chapter" data-level="1.4.6.5.1" data-path="../compass.html" data-name="wx.onCompassChange"><a href="../compass.html#wxoncompasschangecallback">wx.onCompassChange</a></li>
<li class="chapter" data-level="1.4.6.5.2" data-path="../compass.html" data-name="wx.startCompass"><a href="../compass.html#wxstartcompassobject">wx.startCompass</a></li>
<li class="chapter" data-level="1.4.6.5.3" data-path="../compass.html" data-name="wx.stopCompass"><a href="../compass.html#wxstopcompassobject">wx.stopCompass</a></li>
</ul></li>
<li class="chapter" data-level="1.4.6.6" data-path="../phonecall.html" data-name="拨打电话"><a href="../phonecall.html">拨打电话</a>
<ul class="articles">
<li class="chapter" data-level="1.4.6.6.1" data-path="../phonecall.html" data-name="wx.makePhoneCall"><a href="../phonecall.html#wxmakephonecallobject">wx.makePhoneCall</a></li>
</ul></li>
<li class="chapter" data-level="1.4.6.7" data-path="../scancode.html" data-name="扫码"><a href="../scancode.html">扫码</a>
<ul class="articles">
<li class="chapter" data-level="1.4.6.7.1" data-path="../scancode.html" data-name="wx.scanCode"><a href="../scancode.html#wxscancodeobject">wx.scanCode</a></li>
</ul></li>
<li class="chapter" data-level="1.4.6.8" data-path="../clipboard.html" data-name="剪贴板"><a href="../clipboard.html">剪贴板</a>
<ul class="articles">
<li class="chapter" data-level="1.4.6.8.1" data-path="../clipboard.html" data-name="wx.setClipboardData"><a href="../clipboard.html#wxsetclipboarddataobject">wx.setClipboardData</a></li>
<li class="chapter" data-level="1.4.6.8.2" data-path="../clipboard.html" data-name="wx.getClipboardData"><a href="../clipboard.html#wxgetclipboarddataobject">wx.getClipboardData</a></li>
</ul></li>
<li class="chapter" data-level="1.4.6.9" data-path="../bluetooth.html" data-name="蓝牙"><a href="../bluetooth.html">蓝牙</a>
<ul class="articles">
<li class="chapter" data-level="1.4.6.9.1" data-path="../bluetooth.html" data-name="wx.openBluetoothAdapter"><a href="../bluetooth.html#wxopenbluetoothadapterobject">wx.openBluetoothAdapter</a></li>
<li class="chapter" data-level="1.4.6.9.2" data-path="../bluetooth.html" data-name="wx.closeBluetoothAdapter"><a href="../bluetooth.html#wxclosebluetoothadapterobject">wx.closeBluetoothAdapter</a></li>
<li class="chapter" data-level="1.4.6.9.3" data-path="../bluetooth.html" data-name="wx.getBluetoothAdapterState"><a href="../bluetooth.html#wxgetbluetoothadapterstateobject">wx.getBluetoothAdapterState</a></li>
<li class="chapter" data-level="1.4.6.9.4" data-path="../bluetooth.html" data-name="wx.onBluetoothAdapterStateChange"><a href="../bluetooth.html#wxonbluetoothadapterstatechangecallback">wx.onBluetoothAdapterStateChange</a></li>
<li class="chapter" data-level="1.4.6.9.5" data-path="../bluetooth.html" data-name="wx.startBluetoothDevicesDiscovery"><a href="../bluetooth.html#wxstartbluetoothdevicesdiscoveryobject">wx.startBluetoothDevicesDiscovery</a></li>
<li class="chapter" data-level="1.4.6.9.6" data-path="../bluetooth.html" data-name="wx.stopBluetoothDevicesDiscovery"><a href="../bluetooth.html#wxstopbluetoothdevicesdiscoveryobject">wx.stopBluetoothDevicesDiscovery</a></li>
<li class="chapter" data-level="1.4.6.9.7" data-path="../bluetooth.html" data-name="wx.getBluetoothDevices"><a href="../bluetooth.html#wxgetbluetoothdevicesobject">wx.getBluetoothDevices</a></li>
<li class="chapter" data-level="1.4.6.9.8" data-path="../bluetooth.html" data-name="wx.getConnectedBluetoothDevices"><a href="../bluetooth.html#wxgetconnectedbluetoothdevicesobject">wx.getConnectedBluetoothDevices</a></li>
<li class="chapter" data-level="1.4.6.9.9" data-path="../bluetooth.html" data-name="wx.onBluetoothDeviceFound"><a href="../bluetooth.html#wxonbluetoothdevicefoundcallback">wx.onBluetoothDeviceFound</a></li>
<li class="chapter" data-level="1.4.6.9.10" data-path="../bluetooth.html" data-name="wx.createBLEConnection"><a href="../bluetooth.html#wxcreatebleconnectionobject">wx.createBLEConnection</a></li>
<li class="chapter" data-level="1.4.6.9.11" data-path="../bluetooth.html" data-name="wx.closeBLEConnection"><a href="../bluetooth.html#wxclosebleconnectionobject">wx.closeBLEConnection</a></li>
<li class="chapter" data-level="1.4.6.9.12" data-path="../bluetooth.html" data-name="wx.getBLEDeviceServices"><a href="../bluetooth.html#wxgetbledeviceservicesobject">wx.getBLEDeviceServices</a></li>
<li class="chapter" data-level="1.4.6.9.13" data-path="../bluetooth.html" data-name="wx.getBLEDeviceCharacteristics"><a href="../bluetooth.html#wxgetbledevicecharacteristicsobject">wx.getBLEDeviceCharacteristics</a></li>
<li class="chapter" data-level="1.4.6.9.14" data-path="../bluetooth.html" data-name="wx.readBLECharacteristicValue"><a href="../bluetooth.html#wxreadblecharacteristicvalueobject">wx.readBLECharacteristicValue</a></li>
<li class="chapter" data-level="1.4.6.9.15" data-path="../bluetooth.html" data-name="wx.writeBLECharacteristicValue"><a href="../bluetooth.html#wxwriteblecharacteristicvalueobject">wx.writeBLECharacteristicValue</a></li>
<li class="chapter" data-level="1.4.6.9.16" data-path="../bluetooth.html" data-name="wx.notifyBLECharacteristicValueChange"><a href="../bluetooth.html#wxnotifyblecharacteristicvaluechangeobject">wx.notifyBLECharacteristicValueChange</a></li>
<li class="chapter" data-level="1.4.6.9.17" data-path="../bluetooth.html" data-name="wx.onBLEConnectionStateChange"><a href="../bluetooth.html#wxonbleconnectionstatechangecallback">wx.onBLEConnectionStateChange</a></li>
<li class="chapter" data-level="1.4.6.9.18" data-path="../bluetooth.html" data-name="wx.onBLECharacteristicValueChange"><a href="../bluetooth.html#wxonblecharacteristicvaluechangecallback">wx.onBLECharacteristicValueChange</a></li>
<li class="chapter" data-level="1.4.6.9.19" data-path="../bluetooth.html" data-name="错误码"><a href="../bluetooth.html#蓝牙错误码errcode列表">错误码</a></li>
</ul></li>
<li class="chapter" data-level="1.4.6.10" data-path="../iBeacon.html" data-name="iBeacon"><a href="../iBeacon.html">iBeacon</a>
<ul class="articles">
<li class="chapter" data-level="1.4.6.10.1" data-path="../iBeacon.html" data-name="wx.startBeaconDiscovery"><a href="../iBeacon.html#wxstartbeacondiscoveryobject">wx.startBeaconDiscovery</a></li>
<li class="chapter" data-level="1.4.6.10.2" data-path="../iBeacon.html" data-name="wx.stopBeaconDiscovery"><a href="../iBeacon.html#wxstopbeacondiscoveryobject">wx.stopBeaconDiscovery</a></li>
<li class="chapter" data-level="1.4.6.10.3" data-path="../iBeacon.html" data-name="wx.getBeacons"><a href="../iBeacon.html#wxgetbeaconsobject">wx.getBeacons</a></li>
<li class="chapter" data-level="1.4.6.10.4" data-path="../iBeacon.html" data-name="wx.onBeaconUpdate"><a href="../iBeacon.html#wxonbeaconupdatecallback">wx.onBeaconUpdate</a></li>
<li class="chapter" data-level="1.4.6.10.5" data-path="../iBeacon.html" data-name="wx.onBeaconServiceChange"><a href="../iBeacon.html#wxonbeaconservicechangecallback">wx.onBeaconServiceChange</a></li>
</ul></li>
<li class="chapter" data-level="1.4.6.11" data-path="../device.html" data-name="屏幕亮度"><a href="../device.html#wxsetscreenbrightnessobject">屏幕亮度</a>
<ul class="articles">
<li class="chapter" data-level="1.4.6.11.1" data-path="../device.html" data-name="wx.setScreenBrightness"><a href="../device.html#wxsetscreenbrightnessobject">wx.setScreenBrightness</a></li>
<li class="chapter" data-level="1.4.6.11.2" data-path="../device.html" data-name="wx.getScreenBrightness"><a href="../device.html#wxgetscreenbrightnessobject">wx.getScreenBrightness</a></li>
<li class="chapter" data-level="1.4.6.11.3" data-path="../setKeepScreenOn.html" data-name="wx.setKeepScreenOn"><a href="../setKeepScreenOn.html">wx.setKeepScreenOn</a></li>
</ul></li>
<li class="chapter" data-level="1.4.6.12" data-path="../onUserCaptureScreen.html" data-name="用户截屏事件"><a href="../onUserCaptureScreen.html">用户截屏事件</a>
<ul class="articles">
<li class="chapter" data-level="1.4.6.12.1" data-path="../onUserCaptureScreen.html" data-name="wx.onUserCaptureScreen"><a href="../onUserCaptureScreen.html">wx.onUserCaptureScreen</a></li>
</ul></li>
<li class="chapter" data-level="1.4.6.13" data-path="../device.html" data-name="振动"><a href="../device.html#wxvibratelongobject">振动</a>
<ul class="articles">
<li class="chapter" data-level="1.4.6.13.1" data-path="../device.html" data-name="wx.vibrateLong"><a href="../device.html#wxvibratelongobject">wx.vibrateLong</a></li>
<li class="chapter" data-level="1.4.6.13.2" data-path="../device.html" data-name="wx.vibrateShort"><a href="../device.html#wxvibrateshortobject">wx.vibrateShort</a></li>
</ul></li>
<li class="chapter" data-level="1.4.6.14" data-path="../phone-contact.html" data-name="手机联系人"><a href="../phone-contact.html">手机联系人</a>
<ul class="articles">
<li class="chapter" data-level="1.4.6.14.1" data-path="../phone-contact.html" data-name="wx.addPhoneContact"><a href="../phone-contact.html#wxaddphonecontactobject">wx.addPhoneContact</a></li>
</ul></li>
<li class="chapter" data-level="1.4.6.15" data-path="../nfc.html" data-name="NFC"><a href="../nfc.html">NFC</a>
<ul class="articles">
<li class="chapter" data-level="1.4.6.15.1" data-path="../nfc.html" data-name="wx.getHCEState"><a href="../nfc.html#wxgethcestateobject">wx.getHCEState</a></li>
<li class="chapter" data-level="1.4.6.15.2" data-path="../nfc.html" data-name="wx.startHCE"><a href="../nfc.html#wxstarthceobject">wx.startHCE</a></li>
<li class="chapter" data-level="1.4.6.15.3" data-path="../nfc.html" data-name="wx.stopHCE"><a href="../nfc.html#wxstophceobject">wx.stopHCE</a></li>
<li class="chapter" data-level="1.4.6.15.4" data-path="../nfc.html" data-name="wx.onHCEMessage"><a href="../nfc.html#wxonhcemessagecallback">wx.onHCEMessage</a></li>
<li class="chapter" data-level="1.4.6.15.5" data-path="../nfc.html" data-name="wx.sendHCEMessage"><a href="../nfc.html#wxsendhcemessageobject">wx.sendHCEMessage</a></li>
</ul></li>
<li class="chapter" data-level="1.4.6.16" data-path="../wifi.html" data-name="Wi-Fi"><a href="../wifi.html">Wi-Fi</a>
<ul class="articles">
<li class="chapter" data-level="1.4.6.16.1" data-path="../wifi.html" data-name="wx.startWifi"><a href="../wifi.html#wxstartwifiobject">wx.startWifi</a></li>
<li class="chapter" data-level="1.4.6.16.2" data-path="../wifi.html" data-name="wx.stopWifi"><a href="../wifi.html#wxstopwifiobject">wx.stopWifi</a></li>
<li class="chapter" data-level="1.4.6.16.3" data-path="../wifi.html" data-name="wx.connectWifi"><a href="../wifi.html#wxconnectwifiobject">wx.connectWifi</a></li>
<li class="chapter" data-level="1.4.6.16.4" data-path="../wifi.html" data-name="wx.getWifiList"><a href="../wifi.html#wxgetwifilistobject">wx.getWifiList</a></li>
<li class="chapter" data-level="1.4.6.16.5" data-path="../wifi.html" data-name="wx.onGetWifiList"><a href="../wifi.html#wxongetwifilistcallback">wx.onGetWifiList</a></li>
<li class="chapter" data-level="1.4.6.16.6" data-path="../wifi.html" data-name="wx.setWifiList"><a href="../wifi.html#wxsetwifilistobject">wx.setWifiList</a></li>
<li class="chapter" data-level="1.4.6.16.7" data-path="../wifi.html" data-name="wx.onWifiConnected"><a href="../wifi.html#wxonwificonnectedcallback">wx.onWifiConnected</a></li>
<li class="chapter" data-level="1.4.6.16.8" data-path="../wifi.html" data-name="wx.getConnectedWifi"><a href="../wifi.html#wxgetconnectedwifiobject">wx.getConnectedWifi</a></li>
</ul></li>
</ul></li>
<li class="chapter open" data-level="1.4.7" data-path="../api-react.html" data-name="界面"><a href="../api-react.html">界面</a>
<ul class="articles">
<li class="chapter" data-level="1.4.7.1" data-path="../api-react.html" data-name="交互反馈"><a href="../api-react.html">交互反馈</a>
<ul class="articles">
<li class="chapter" data-level="1.4.7.1.1" data-path="../api-react.html" data-name="wx.showToast"><a href="../api-react.html#wxshowtoastobject">wx.showToast</a></li>
<li class="chapter" data-level="1.4.7.1.2" data-path="../api-react.html" data-name="wx.showLoading"><a href="../api-react.html#wxshowloadingobject">wx.showLoading</a></li>
<li class="chapter" data-level="1.4.7.1.3" data-path="../api-react.html" data-name="wx.hideToast"><a href="../api-react.html#wxhidetoast">wx.hideToast</a></li>
<li class="chapter" data-level="1.4.7.1.4" data-path="../api-react.html" data-name="wx.hideLoading"><a href="../api-react.html#wxhideloading">wx.hideLoading</a></li>
<li class="chapter" data-level="1.4.7.1.5" data-path="../api-react.html" data-name="wx.showModal"><a href="../api-react.html#wxshowmodalobject">wx.showModal</a></li>
<li class="chapter" data-level="1.4.7.1.6" data-path="../api-react.html" data-name="wx.showActionSheet"><a href="../api-react.html#wxshowactionsheetobject">wx.showActionSheet</a></li>
</ul></li>
<li class="chapter" data-level="1.4.7.2" data-path="../ui.html" data-name="设置导航条"><a href="../ui.html">设置导航条</a>
<ul class="articles">
<li class="chapter" data-level="1.4.7.2.1" data-path="../ui.html" data-name="wx.setNavigationBarTitle"><a href="../ui.html#wxsetnavigationbartitleobject">wx.setNavigationBarTitle</a></li>
<li class="chapter" data-level="1.4.7.2.2" data-path="../ui.html" data-name="wx.showNavigationBarLoading"><a href="../ui.html#wxshownavigationbarloading">wx.showNavigationBarLoading</a></li>
<li class="chapter" data-level="1.4.7.2.3" data-path="../ui.html" data-name="wx.hideNavigationBarLoading"><a href="../ui.html#wxhidenavigationbarloading">wx.hideNavigationBarLoading</a></li>
<li class="chapter" data-level="1.4.7.2.4" data-path="../setNavigationBarColor.html" data-name="wx.setNavigationBarColor"><a href="../setNavigationBarColor.html">wx.setNavigationBarColor</a></li>
</ul></li>
<li class="chapter" data-level="1.4.7.3" data-path="../ui-tabbar.html" data-name="设置tabBar"><a href="../ui-tabbar.html">设置tabBar</a>
<ul class="articles">
<li class="chapter" data-level="1.4.7.3.1" data-path="../ui-tabbar.html" data-name="wx.setTabBarBadge"><a href="../ui-tabbar.html#wxsettabbarbadgeobject">wx.setTabBarBadge</a></li>
<li class="chapter" data-level="1.4.7.3.2" data-path="../ui-tabbar.html" data-name="wx.removeTabBarBadge"><a href="../ui-tabbar.html#wxremovetabbarbadgeobject">wx.removeTabBarBadge</a></li>
<li class="chapter" data-level="1.4.7.3.3" data-path="../ui-tabbar.html" data-name="wx.showTabBarRedDot"><a href="../ui-tabbar.html#wxshowtabbarreddotobject">wx.showTabBarRedDot</a></li>
<li class="chapter" data-level="1.4.7.3.4" data-path="../ui-tabbar.html" data-name="wx.hideTabBarRedDot"><a href="../ui-tabbar.html#wxhidetabbarreddotobject">wx.hideTabBarRedDot</a></li>
<li class="chapter" data-level="1.4.7.3.5" data-path="../ui-tabbar.html" data-name="wx.setTabBarStyle"><a href="../ui-tabbar.html#wxsettabbarstyleobject">wx.setTabBarStyle</a></li>
<li class="chapter" data-level="1.4.7.3.6" data-path="../ui-tabbar.html" data-name="wx.setTabBarItem"><a href="../ui-tabbar.html#wxsettabbaritemobject">wx.setTabBarItem</a></li>
<li class="chapter" data-level="1.4.7.3.7" data-path="../ui-tabbar.html" data-name="wx.showTabBar"><a href="../ui-tabbar.html#wxshowtabbarobject">wx.showTabBar</a></li>
<li class="chapter" data-level="1.4.7.3.8" data-path="../ui-tabbar.html" data-name="wx.hideTabBar"><a href="../ui-tabbar.html#wxhidetabbarobject">wx.hideTabBar</a></li>
</ul></li>
<li class="chapter" data-level="1.4.7.4" data-path="../ui-background.html" data-name="设置窗口背景"><a href="../ui-background.html">设置窗口背景</a>
<ul class="articles">
<li class="chapter" data-level="1.4.7.4.1" data-path="../ui-background.html" data-name="wx.setBackgroundColor"><a href="../ui-background.html#wxsetbackgroundcolor">wx.setBackgroundColor</a></li>
<li class="chapter" data-level="1.4.7.4.2" data-path="../ui-background.html" data-name="wx.setBackgroundTextStyle"><a href="../ui-background.html#wxsetbackgroundtextstyle">wx.setBackgroundTextStyle</a></li>
</ul></li>
<li class="chapter" data-level="1.4.7.5" data-path="../ui-topbar.html" data-name="设置置顶信息"><a href="../ui-topbar.html#wxsettopbartextobject">设置置顶信息</a>
<ul class="articles">
<li class="chapter" data-level="1.4.7.5.1" data-path="../ui-topbar.html" data-name="wx.setTopBarText"><a href="../ui-topbar.html#wxsettopbartextobject">wx.setTopBarText</a></li>
</ul></li>
<li class="chapter" data-level="1.4.7.6" data-path="../ui-navigate.html" data-name="导航"><a href="../ui-navigate.html">导航</a>
<ul class="articles">
<li class="chapter" data-level="1.4.7.6.1" data-path="../ui-navigate.html" data-name="wx.navigateTo"><a href="../ui-navigate.html#wxnavigatetoobject">wx.navigateTo</a></li>
<li class="chapter" data-level="1.4.7.6.2" data-path="../ui-navigate.html" data-name="wx.redirectTo"><a href="../ui-navigate.html#wxredirecttoobject">wx.redirectTo</a></li>
<li class="chapter" data-level="1.4.7.6.3" data-path="../ui-navigate.html" data-name="wx.switchTab"><a href="../ui-navigate.html#wxswitchtabobject">wx.switchTab</a></li>
<li class="chapter" data-level="1.4.7.6.4" data-path="../ui-navigate.html" data-name="wx.navigateBack"><a href="../ui-navigate.html#wxnavigatebackobject">wx.navigateBack</a></li>
<li class="chapter" data-level="1.4.7.6.5" data-path="../ui-navigate.html" data-name="wx.reLaunch"><a href="../ui-navigate.html#wxrelaunchobject">wx.reLaunch</a></li>
</ul></li>
<li class="chapter" data-level="1.4.7.7" data-path="../api-animation.html" data-name="动画"><a href="../api-animation.html">动画</a>
<ul class="articles">
<li class="chapter" data-level="1.4.7.7.1" data-path="../api-animation.html" data-name="wx.createAnimation"><a href="../api-animation.html#wxcreateanimationobject">wx.createAnimation</a></li>
</ul></li>
<li class="chapter" data-level="1.4.7.8" data-path="../scroll.html" data-name="位置"><a href="../scroll.html">位置</a>
<ul class="articles">
<li class="chapter" data-level="1.4.7.8.1" data-path="../scroll.html" data-name="wx.pageScrollTo"><a href="../scroll.html">wx.pageScrollTo</a></li>
</ul></li>
<li class="chapter" data-level="1.4.7.9" data-path="./reference.html" data-name="绘图"><a href="./reference.html">绘图</a>
<ul class="articles">
<li class="chapter" data-level="1.4.7.9.1" data-path="./intro.html" data-name="intro"><a href="./intro.html">intro</a></li>
<li class="chapter" data-level="1.4.7.9.2" data-path="./coordinates.html" data-name="coordinates"><a href="./coordinates.html">coordinates</a></li>
<li class="chapter" data-level="1.4.7.9.3" data-path="./gradient.html" data-name="gradient"><a href="./gradient.html">gradient</a></li>
<li class="chapter" data-level="1.4.7.9.4" data-path="./reference.html" data-name="reference"><a href="./reference.html">reference</a></li>
<li class="chapter" data-level="1.4.7.9.5" data-path="./color.html" data-name="color"><a href="./color.html">color</a></li>
<li class="chapter" data-level="1.4.7.9.6" data-path="./create-canvas-context.html" data-name="wx.createCanvasContext"><a href="./create-canvas-context.html">wx.createCanvasContext</a></li>
<li class="chapter" data-level="1.4.7.9.7" data-path="./create-context.html" data-name="wx.createContext"><a href="./create-context.html">wx.createContext</a></li>
<li class="chapter" data-level="1.4.7.9.8" data-path="./draw-canvas.html" data-name="wx.drawCanvas"><a href="./draw-canvas.html">wx.drawCanvas</a></li>
<li class="chapter" data-level="1.4.7.9.9" data-path="./temp-file.html" data-name="wx.canvasToTempFilePath"><a href="./temp-file.html">wx.canvasToTempFilePath</a></li>
<li class="chapter" data-level="1.4.7.9.10" data-path="./get-image-data.html" data-name="wx.canvasGetImageData"><a href="./get-image-data.html">wx.canvasGetImageData</a></li>
<li class="chapter" data-level="1.4.7.9.11" data-path="./put-image-data.html" data-name="wx.canvasPutImageData"><a href="./put-image-data.html">wx.canvasPutImageData</a></li>
<li class="chapter" data-level="1.4.7.9.12" data-path="./set-fill-style.html" data-name="setFillStyle"><a href="./set-fill-style.html">setFillStyle</a></li>
<li class="chapter" data-level="1.4.7.9.13" data-path="./set-stroke-style.html" data-name="setStrokeStyle"><a href="./set-stroke-style.html">setStrokeStyle</a></li>
<li class="chapter" data-level="1.4.7.9.14" data-path="./set-shadow.html" data-name="setShadow"><a href="./set-shadow.html">setShadow</a></li>
<li class="chapter" data-level="1.4.7.9.15" data-path="./create-linear-gradient.html" data-name="createLinearGradient"><a href="./create-linear-gradient.html">createLinearGradient</a></li>
<li class="chapter" data-level="1.4.7.9.16" data-path="./create-circular-gradient.html" data-name="createCircularGradient"><a href="./create-circular-gradient.html">createCircularGradient</a></li>
<li class="chapter" data-level="1.4.7.9.17" data-path="./add-color-stop.html" data-name="addColorStop"><a href="./add-color-stop.html">addColorStop</a></li>
<li class="chapter" data-level="1.4.7.9.18" data-path="./set-line-width.html" data-name="setLineWidth"><a href="./set-line-width.html">setLineWidth</a></li>
<li class="chapter" data-level="1.4.7.9.19" data-path="./set-line-cap.html" data-name="setLineCap"><a href="./set-line-cap.html">setLineCap</a></li>
<li class="chapter" data-level="1.4.7.9.20" data-path="./set-line-join.html" data-name="setLineJoin"><a href="./set-line-join.html">setLineJoin</a></li>
<li class="chapter" data-level="1.4.7.9.21" data-path="./set-line-dash.html" data-name="setLineDash"><a href="./set-line-dash.html">setLineDash</a></li>
<li class="chapter" data-level="1.4.7.9.22" data-path="./set-miter-limit.html" data-name="setMiterLimit"><a href="./set-miter-limit.html">setMiterLimit</a></li>
<li class="chapter" data-level="1.4.7.9.23" data-path="./rect.html" data-name="rect"><a href="./rect.html">rect</a></li>
<li class="chapter" data-level="1.4.7.9.24" data-path="./fill-rect.html" data-name="fillRect"><a href="./fill-rect.html">fillRect</a></li>
<li class="chapter" data-level="1.4.7.9.25" data-path="./stroke-rect.html" data-name="strokeRect"><a href="./stroke-rect.html">strokeRect</a></li>
<li class="chapter active" data-level="1.4.7.9.26" data-path="./clear-rect.html" data-name="clearRect"><a href="./clear-rect.html">clearRect</a></li>
<li class="chapter" data-level="1.4.7.9.27" data-path="./fill.html" data-name="fill"><a href="./fill.html">fill</a></li>
<li class="chapter" data-level="1.4.7.9.28" data-path="./stroke.html" data-name="stroke"><a href="./stroke.html">stroke</a></li>
<li class="chapter" data-level="1.4.7.9.29" data-path="./begin-path.html" data-name="beginPath"><a href="./begin-path.html">beginPath</a></li>
<li class="chapter" data-level="1.4.7.9.30" data-path="./close-path.html" data-name="closePath"><a href="./close-path.html">closePath</a></li>
<li class="chapter" data-level="1.4.7.9.31" data-path="./move-to.html" data-name="moveTo"><a href="./move-to.html">moveTo</a></li>
<li class="chapter" data-level="1.4.7.9.32" data-path="./line-to.html" data-name="lineTo"><a href="./line-to.html">lineTo</a></li>
<li class="chapter" data-level="1.4.7.9.33" data-path="./arc.html" data-name="arc"><a href="./arc.html">arc</a></li>
<li class="chapter" data-level="1.4.7.9.34" data-path="./bezier-curve-to.html" data-name="bezierCurveTo"><a href="./bezier-curve-to.html">bezierCurveTo</a></li>
<li class="chapter" data-level="1.4.7.9.35" data-path="./quadratic-curve-to.html" data-name="quadraticCurveTo"><a href="./quadratic-curve-to.html">quadraticCurveTo</a></li>
<li class="chapter" data-level="1.4.7.9.36" data-path="./scale.html" data-name="scale"><a href="./scale.html">scale</a></li>
<li class="chapter" data-level="1.4.7.9.37" data-path="./rotate.html" data-name="rotate"><a href="./rotate.html">rotate</a></li>
<li class="chapter" data-level="1.4.7.9.38" data-path="./translate.html" data-name="translate"><a href="./translate.html">translate</a></li>
<li class="chapter" data-level="1.4.7.9.39" data-path="./clip.html" data-name="clip"><a href="./clip.html">clip</a></li>
<li class="chapter" data-level="1.4.7.9.40" data-path="./set-font-size.html" data-name="setFontSize"><a href="./set-font-size.html">setFontSize</a></li>
<li class="chapter" data-level="1.4.7.9.41" data-path="./fill-text.html" data-name="fillText"><a href="./fill-text.html">fillText</a></li>
<li class="chapter" data-level="1.4.7.9.42" data-path="./set-text-align.html" data-name="setTextAlign"><a href="./set-text-align.html">setTextAlign</a></li>
<li class="chapter" data-level="1.4.7.9.43" data-path="./set-text-baseline.html" data-name="setTextBaseline"><a href="./set-text-baseline.html">setTextBaseline</a></li>
<li class="chapter" data-level="1.4.7.9.44" data-path="./draw-image.html" data-name="drawImage"><a href="./draw-image.html">drawImage</a></li>
<li class="chapter" data-level="1.4.7.9.45" data-path="./set-global-alpha.html" data-name="setGlobalAlpha"><a href="./set-global-alpha.html">setGlobalAlpha</a></li>
<li class="chapter" data-level="1.4.7.9.46" data-path="./save-restore.html" data-name="save"><a href="./save-restore.html">save</a></li>
<li class="chapter" data-level="1.4.7.9.47" data-path="./save-restore.html" data-name="restore"><a href="./save-restore.html#restore">restore</a></li>
<li class="chapter" data-level="1.4.7.9.48" data-path="./draw.html" data-name="draw"><a href="./draw.html">draw</a></li>
<li class="chapter" data-level="1.4.7.9.49" data-path="./get-actions.html" data-name="getActions"><a href="./get-actions.html">getActions</a></li>
<li class="chapter" data-level="1.4.7.9.50" data-path="./clear-actions.html" data-name="clearActions"><a href="./clear-actions.html">clearActions</a></li>
<li class="chapter" data-level="1.4.7.9.51" data-path="./measure-text.html" data-name="measureText"><a href="./measure-text.html">measureText</a></li>
<li class="chapter" data-level="1.4.7.9.52" data-path="./global-composite-operation.html" data-name="globalCompositeOperation"><a href="./global-composite-operation.html">globalCompositeOperation</a></li>
<li class="chapter" data-level="1.4.7.9.53" data-path="./arc-to.html" data-name="arcTo"><a href="./arc-to.html">arcTo</a></li>
<li class="chapter" data-level="1.4.7.9.54" data-path="./stroke-text.html" data-name="strokeText"><a href="./stroke-text.html">strokeText</a></li>
<li class="chapter" data-level="1.4.7.9.55" data-path="./line-dash-offset.html" data-name="lineDashOffset"><a href="./line-dash-offset.html">lineDashOffset</a></li>
<li class="chapter" data-level="1.4.7.9.56" data-path="./create-pattern.html" data-name="createPattern"><a href="./create-pattern.html">createPattern</a></li>
<li class="chapter" data-level="1.4.7.9.57" data-path="./set-shadow.html" data-name="shadowBlur"><a href="./set-shadow.html#canvascontextshadowblur">shadowBlur</a></li>
<li class="chapter" data-level="1.4.7.9.58" data-path="./set-shadow.html" data-name="shadowColor"><a href="./set-shadow.html#canvascontextshadowcolor">shadowColor</a></li>
<li class="chapter" data-level="1.4.7.9.59" data-path="./set-shadow.html" data-name="shadowOffsetX"><a href="./set-shadow.html#canvascontextshadowoffsetx">shadowOffsetX</a></li>
<li class="chapter" data-level="1.4.7.9.60" data-path="./set-shadow.html" data-name="shadowOffsetY"><a href="./set-shadow.html#canvascontextshadowoffsety">shadowOffsetY</a></li>
<li class="chapter" data-level="1.4.7.9.61" data-path="./font.html" data-name="font"><a href="./font.html">font</a></li>
<li class="chapter" data-level="1.4.7.9.62" data-path="./transform.html" data-name="transform"><a href="./transform.html">transform</a></li>
<li class="chapter" data-level="1.4.7.9.63" data-path="./set-transform.html" data-name="setTransform"><a href="./set-transform.html">setTransform</a></li>
</ul></li>
<li class="chapter" data-level="1.4.7.10" data-path="../pulldown.html" data-name="下拉刷新"><a href="../pulldown.html">下拉刷新</a>
<ul class="articles">
<li class="chapter" data-level="1.4.7.10.1" data-path="../pulldown.html" data-name="Page.onPullDownRefresh"><a href="../pulldown.html#pageonpulldownrefresh">Page.onPullDownRefresh</a></li>
<li class="chapter" data-level="1.4.7.10.2" data-path="../pulldown.html" data-name="wx.startPullDownRefresh"><a href="../pulldown.html#wxstartpulldownrefresh">wx.startPullDownRefresh</a></li>
<li class="chapter" data-level="1.4.7.10.3" data-path="../pulldown.html" data-name="wx.stopPullDownRefresh"><a href="../pulldown.html#wxstoppulldownrefresh">wx.stopPullDownRefresh</a></li>
</ul></li>
<li class="chapter" data-level="1.4.7.11" data-path="../wxml-nodes-info.html" data-name="WXML节点信息"><a href="../wxml-nodes-info.html">WXML节点信息</a>
<ul class="articles">
<li class="chapter" data-level="1.4.7.11.1" data-path="../wxml-nodes-info.html" data-name="wx.createSelectorQuery"><a href="../wxml-nodes-info.html#wxcreateselectorquery">wx.createSelectorQuery</a></li>
<li class="chapter" data-level="1.4.7.11.2" data-path="../wxml-nodes-info.html" data-name="selectorQuery.in"><a href="../wxml-nodes-info.html#selectorqueryincomponent">selectorQuery.in</a></li>
<li class="chapter" data-level="1.4.7.11.3" data-path="../wxml-nodes-info.html" data-name="selectorQuery.select"><a href="../wxml-nodes-info.html#selectorqueryselectselector">selectorQuery.select</a></li>
<li class="chapter" data-level="1.4.7.11.4" data-path="../wxml-nodes-info.html" data-name="selectorQuery.selectAll"><a href="../wxml-nodes-info.html#selectorqueryselectallselector">selectorQuery.selectAll</a></li>
<li class="chapter" data-level="1.4.7.11.5" data-path="../wxml-nodes-info.html" data-name="selectorQuery.selectViewport"><a href="../wxml-nodes-info.html#selectorqueryselectviewport">selectorQuery.selectViewport</a></li>
<li class="chapter" data-level="1.4.7.11.6" data-path="../wxml-nodes-info.html" data-name="nodesRef.boundingClientRect"><a href="../wxml-nodes-info.html#nodesrefboundingclientrectcallback">nodesRef.boundingClientRect</a></li>
<li class="chapter" data-level="1.4.7.11.7" data-path="../wxml-nodes-info.html" data-name="nodesRef.scrollOffset"><a href="../wxml-nodes-info.html#nodesrefscrolloffsetcallback">nodesRef.scrollOffset</a></li>
<li class="chapter" data-level="1.4.7.11.8" data-path="../wxml-nodes-info.html" data-name="nodesRef.fields"><a href="../wxml-nodes-info.html#nodesreffieldsfieldscallback">nodesRef.fields</a></li>
<li class="chapter" data-level="1.4.7.11.9" data-path="../wxml-nodes-info.html" data-name="selectorQuery.exec"><a href="../wxml-nodes-info.html#selectorqueryexeccallback">selectorQuery.exec</a></li>
</ul></li>
<li class="chapter" data-level="1.4.7.12" data-path="../intersection-observer.html" data-name="WXML节点布局相交状态"><a href="../intersection-observer.html">WXML节点布局相交状态</a>
<ul class="articles">
<li class="chapter" data-level="1.4.7.12.1" data-path="../intersection-observer.html" data-name="wx.createIntersectionObserver"><a href="../intersection-observer.html#wxcreateintersectionobserverthisoptions">wx.createIntersectionObserver</a></li>
<li class="chapter" data-level="1.4.7.12.2" data-path="../intersection-observer.html" data-name="intersectionObserver.relativeTo"><a href="../intersection-observer.html#intersectionobserverrelativetoselectormargins">intersectionObserver.relativeTo</a></li>
<li class="chapter" data-level="1.4.7.12.3" data-path="../intersection-observer.html" data-name="intersectionObserver.relativeToViewport"><a href="../intersection-observer.html#intersectionobserverrelativetoviewportmargins">intersectionObserver.relativeToViewport</a></li>
<li class="chapter" data-level="1.4.7.12.4" data-path="../intersection-observer.html" data-name="intersectionObserver.observe"><a href="../intersection-observer.html#intersectionobserverobservetargetselectorcallback">intersectionObserver.observe</a></li>
<li class="chapter" data-level="1.4.7.12.5" data-path="../intersection-observer.html" data-name="intersectionObserver.disconnect"><a href="../intersection-observer.html#intersectionobserverdisconnect">intersectionObserver.disconnect</a></li>
</ul></li>
<li class="chapter" data-level="1.4.7.13" data-path="../custom-component.html" data-name="自定义组件"><a href="../custom-component.html">自定义组件</a>
<ul class="articles">
<li class="chapter" data-level="1.4.7.13.1" data-path="../custom-component.html" data-name="wx.nextTick"><a href="../custom-component.html#wxnexttickfunction">wx.nextTick</a></li>
</ul></li>
</ul></li>
<li class="chapter open" data-level="1.4.8" data-path="../ext-api.html" data-name="第三方平台"><a href="../ext-api.html">第三方平台</a>
<ul class="articles">
<li class="chapter" data-level="1.4.8.1" data-path="../ext-api.html" data-name="wx.getExtConfig"><a href="../ext-api.html#wxgetextconfigobject">wx.getExtConfig</a></li>
<li class="chapter" data-level="1.4.8.2" data-path="../ext-api.html" data-name="wx.getExtConfigSync"><a href="../ext-api.html#wxgetextconfigsync">wx.getExtConfigSync</a></li>
</ul></li>
<li class="chapter open" data-level="1.4.9" data-path="../api-login.html" data-name="开放接口"><a href="../api-login.html">开放接口</a>
<ul class="articles">
<li class="chapter" data-level="1.4.9.1" data-path="../api-login.html" data-name="登录"><a href="../api-login.html">登录</a>
<ul class="articles">
<li class="chapter" data-level="1.4.9.1.1" data-path="../api-login.html" data-name="wx.login"><a href="../api-login.html#wxloginobject">wx.login</a></li>
<li class="chapter" data-level="1.4.9.1.2" data-path="../signature.html" data-name="wx.checkSession"><a href="../signature.html#wxchecksessionobject">wx.checkSession</a></li>
<li class="chapter" data-level="1.4.9.1.3" data-path="../signature.html" data-name="签名加密"><a href="../signature.html">签名加密</a></li>
</ul></li>
<li class="chapter" data-level="1.4.9.2" data-path="../authorize-" data-name="授权"><a href="../authorize-">授权</a>
<ul class="articles">
<li class="chapter" data-level="1.4.9.2.1" data-path="../authorize.html" data-name="wx.authorize"><a href="../authorize.html">wx.authorize</a></li>
</ul></li>
<li class="chapter" data-level="1.4.9.3" data-path="../open.html" data-name="用户信息"><a href="../open.html">用户信息</a>
<ul class="articles">
<li class="chapter" data-level="1.4.9.3.1" data-path="../open.html" data-name="wx.getUserInfo"><a href="../open.html#wxgetuserinfoobject">wx.getUserInfo</a></li>
<li class="chapter" data-level="1.4.9.3.2" data-path="../getPhoneNumber.html" data-name="getPhoneNumber"><a href="../getPhoneNumber.html">getPhoneNumber</a></li>
<li class="chapter" data-level="1.4.9.3.3" data-path="../unionID.html" data-name="UnionID机制说明"><a href="../unionID.html">UnionID机制说明</a></li>
</ul></li>
<li class="chapter" data-level="1.4.9.4" data-path="../api-pay.html" data-name="微信支付"><a href="../api-pay.html">微信支付</a>
<ul class="articles">
<li class="chapter" data-level="1.4.9.4.1" data-path="../api-pay.html" data-name="wx.requestPayment"><a href="../api-pay.html#wxrequestpaymentobject">wx.requestPayment</a></li>
</ul></li>
<li class="chapter" data-level="1.4.9.5" data-path="../token.html" data-name="接口调用凭证"><a href="../token.html">接口调用凭证</a>
<ul class="articles">
<li class="chapter" data-level="1.4.9.5.1" data-path="../token.html" data-name="获取access token"><a href="../token.html#获取-accesstoken">获取access token</a></li>
</ul></li>
<li class="chapter" data-level="1.4.9.6" data-path="../notice.html" data-name="模板消息"><a href="../notice.html">模板消息</a>
<ul class="articles">
<li class="chapter" data-level="1.4.9.6.1" data-path="../notice.html" data-name="使用说明"><a href="../notice.html#使用说明">使用说明</a></li>
<li class="chapter" data-level="1.4.9.6.2" data-path="../notice.html" data-name="模版消息管理"><a href="../notice.html#模版消息管理">模版消息管理</a></li>
<li class="chapter" data-level="1.4.9.6.3" data-path="../notice.html" data-name="发送模板消息"><a href="../notice.html#发送模板消息">发送模板消息</a></li>
</ul></li>
<li class="chapter" data-level="1.4.9.7" data-path="../notice-uniform.html" data-name="统一服务消息"><a href="../notice-uniform.html">统一服务消息</a></li>
<li class="chapter" data-level="1.4.9.8" data-path="../custommsg/receive.html" data-name="客服消息"><a href="../custommsg/receive.html">客服消息</a>
<ul class="articles">
<li class="chapter" data-level="1.4.9.8.1" data-path="../custommsg/receive.html" data-name="接收消息和事件"><a href="../custommsg/receive.html#接收消息和事件">接收消息和事件</a>
<ul class="articles">
<li class="chapter" data-level="1.4.9.8.1.1" data-path="../custommsg/receive.html" data-name="文本消息"><a href="../custommsg/receive.html#文本消息">文本消息</a></li>
<li class="chapter" data-level="1.4.9.8.1.2" data-path="../custommsg/receive.html" data-name="图片消息"><a href="../custommsg/receive.html#图片消息">图片消息</a></li>
<li class="chapter" data-level="1.4.9.8.1.3" data-path="../custommsg/receive.html" data-name="小程序卡片消息"><a href="../custommsg/receive.html#小程序卡片消息">小程序卡片消息</a></li>
<li class="chapter" data-level="1.4.9.8.1.4" data-path="../custommsg/receive.html" data-name="进入会话事件"><a href="../custommsg/receive.html#进入会话事件">进入会话事件</a></li>
</ul></li>
<li class="chapter" data-level="1.4.9.8.2" data-path="../custommsg/conversation.html" data-name="发送客服消息"><a href="../custommsg/conversation.html">发送客服消息</a></li>
<li class="chapter" data-level="1.4.9.8.3" data-path="../custommsg/trans.html" data-name="转发消息"><a href="../custommsg/trans.html">转发消息</a></li>
<li class="chapter" data-level="1.4.9.8.4" data-path="../custommsg/material.html" data-name="临时素材接口"><a href="../custommsg/material.html">临时素材接口</a>
<ul class="articles">
<li class="chapter" data-level="1.4.9.8.4.1" data-path="../custommsg/material.html" data-name="获取临时素材"><a href="../custommsg/material.html#获取临时素材">获取临时素材</a></li>
<li class="chapter" data-level="1.4.9.8.4.2" data-path="../custommsg/material.html" data-name="新增临时素材"><a href="../custommsg/material.html#新增临时素材">新增临时素材</a></li>
</ul></li>
<li class="chapter" data-level="1.4.9.8.5" data-path="../custommsg/typing.html" data-name="客服输入状态"><a href="../custommsg/typing.html">客服输入状态</a></li>
<li class="chapter" data-level="1.4.9.8.6" data-path="../custommsg/callback_help.html" data-name="接入指引"><a href="../custommsg/callback_help.html">接入指引</a></li>
</ul></li>
<li class="chapter" data-level="1.4.9.9" data-path="../share.html" data-name="转发"><a href="../share.html">转发</a>
<ul class="articles">
<li class="chapter" data-level="1.4.9.9.1" data-path="../share.html" data-name="Page.onShareAppMessage"><a href="../share.html#pageonshareappmessageobject">Page.onShareAppMessage</a></li>
<li class="chapter" data-level="1.4.9.9.2" data-path="../share.html" data-name="wx.showShareMenu"><a href="../share.html#wxshowsharemenuobject">wx.showShareMenu</a></li>
<li class="chapter" data-level="1.4.9.9.3" data-path="../share.html" data-name="wx.hideShareMenu"><a href="../share.html#wxhidesharemenuobject">wx.hideShareMenu</a></li>
<li class="chapter" data-level="1.4.9.9.4" data-path="../share.html" data-name="wx.updateShareMenu"><a href="../share.html#wxupdatesharemenuobject">wx.updateShareMenu</a></li>
<li class="chapter" data-level="1.4.9.9.5" data-path="../share.html" data-name="wx.getShareInfo"><a href="../share.html#wxgetshareinfoobject">wx.getShareInfo</a></li>
<li class="chapter" data-level="1.4.9.9.6" data-path="../share.html" data-name="获取更多转发信息"><a href="../share.html#获取更多转发信息">获取更多转发信息</a></li>
<li class="chapter" data-level="1.4.9.9.7" data-path="../share.html" data-name="页面内发起转发"><a href="../share.html#页面内发起转发">页面内发起转发</a></li>
</ul></li>
<li class="chapter" data-level="1.4.9.10" data-path="../qrcode.html" data-name="获取二维码"><a href="../qrcode.html">获取二维码</a></li>
<li class="chapter" data-level="1.4.9.11" data-path="../address.html" data-name="收货地址"><a href="../address.html">收货地址</a>
<ul class="articles">
<li class="chapter" data-level="1.4.9.11.1" data-path="../address.html" data-name="wx.chooseAddress"><a href="../address.html#wxchooseaddressobject">wx.chooseAddress</a></li>
</ul></li>
<li class="chapter" data-level="1.4.9.12" data-path="../card.html" data-name="卡券"><a href="../card.html">卡券</a>
<ul class="articles">
<li class="chapter" data-level="1.4.9.12.1" data-path="../card.html" data-name="wx.addCard"><a href="../card.html#wxaddcardobject">wx.addCard</a></li>
<li class="chapter" data-level="1.4.9.12.2" data-path="../card.html" data-name="wx.openCard"><a href="../card.html#wxopencardobject">wx.openCard</a></li>
<li class="chapter" data-level="1.4.9.12.3" data-path="../card.html" data-name="会员卡组件"><a href="../card.html#会员卡组件">会员卡组件</a></li>
</ul></li>
<li class="chapter" data-level="1.4.9.13" data-path="../setting.html" data-name="设置"><a href="../setting.html">设置</a>
<ul class="articles">
<li class="chapter" data-level="1.4.9.13.1" data-path="../setting.html" data-name="wx.openSetting"><a href="../setting.html#wxopensettingobject">wx.openSetting</a></li>
<li class="chapter" data-level="1.4.9.13.2" data-path="../setting.html" data-name="wx.getSetting"><a href="../setting.html#wxgetsettingobject">wx.getSetting</a></li>
</ul></li>
<li class="chapter" data-level="1.4.9.14" data-path="../we-run.html" data-name="微信运动"><a href="../we-run.html">微信运动</a>
<ul class="articles">
<li class="chapter" data-level="1.4.9.14.1" data-path="../we-run.html" data-name="wx.getWeRunData"><a href="../we-run.html#wxgetwerundataobject">wx.getWeRunData</a></li>
</ul></li>
<li class="chapter" data-level="1.4.9.15" data-path="../account-info.html" data-name="当前帐号信息"><a href="../account-info.html">当前帐号信息</a>
<ul class="articles">
<li class="chapter" data-level="1.4.9.15.1" data-path="../account-info.html" data-name="wx.getAccountInfoSync"><a href="../account-info.html#wxgetaccountinfosync">wx.getAccountInfoSync</a></li>
</ul></li>
<li class="chapter" data-level="1.4.9.16" data-path="../navigateToMiniProgram.html" data-name="打开小程序"><a href="../navigateToMiniProgram.html">打开小程序</a>
<ul class="articles">
<li class="chapter" data-level="1.4.9.16.1" data-path="../navigateToMiniProgram.html" data-name="wx.navigateToMiniProgram"><a href="../navigateToMiniProgram.html">wx.navigateToMiniProgram</a></li>
<li class="chapter" data-level="1.4.9.16.2" data-path="../navigateBackMiniProgram.html" data-name="wx.navigateBackMiniProgram"><a href="../navigateBackMiniProgram.html">wx.navigateBackMiniProgram</a></li>
</ul></li>
<li class="chapter" data-level="1.4.9.17" data-path="../launchApp.html" data-name="打开APP"><a href="../launchApp.html">打开APP</a>
<ul class="articles">
<li class="chapter" data-level="1.4.9.17.1" data-path="../launchApp.html" data-name="launchApp"><a href="../launchApp.html">launchApp</a></li>
</ul></li>
<li class="chapter" data-level="1.4.9.18" data-path="../chooseInvoiceTitle.html" data-name="获取发票抬头"><a href="../chooseInvoiceTitle.html">获取发票抬头</a>
<ul class="articles">
<li class="chapter" data-level="1.4.9.18.1" data-path="../chooseInvoiceTitle.html" data-name="wx.chooseInvoiceTitle"><a href="../chooseInvoiceTitle.html">wx.chooseInvoiceTitle</a></li>
</ul></li>
<li class="chapter" data-level="1.4.9.19" data-path="../checkIsSupportSoterAuthentication.html" data-name="生物认证"><a href="../checkIsSupportSoterAuthentication.html">生物认证</a>
<ul class="articles">
<li class="chapter" data-level="1.4.9.19.1" data-path="../checkIsSupportSoterAuthentication.html" data-name="wx.checkIsSupportSoterAuthentication"><a href="../checkIsSupportSoterAuthentication.html">wx.checkIsSupportSoterAuthentication</a></li>
<li class="chapter" data-level="1.4.9.19.2" data-path="../startSoterAuthentication.html" data-name="wx.startSoterAuthentication"><a href="../startSoterAuthentication.html">wx.startSoterAuthentication</a></li>
<li class="chapter" data-level="1.4.9.19.3" data-path="../checkIsSoterEnrolledInDevice.html" data-name="wx.checkIsSoterEnrolledInDevice"><a href="../checkIsSoterEnrolledInDevice.html">wx.checkIsSoterEnrolledInDevice</a></li>
</ul></li>
<li class="chapter" data-level="1.4.9.20" data-path="../nearby.html" data-name="附近"><a href="../nearby.html">附近</a>
<ul class="articles">
<li class="chapter" data-level="1.4.9.20.1" data-path="../nearby.html" data-name="添加地点"><a href="../nearby.html#添加地点">添加地点</a></li>
<li class="chapter" data-level="1.4.9.20.2" data-path="../nearby.html" data-name="查看地点列表"><a href="../nearby.html#查看地点列表">查看地点列表</a></li>
<li class="chapter" data-level="1.4.9.20.3" data-path="../nearby.html" data-name="删除地点"><a href="../nearby.html#删除地点">删除地点</a></li>
<li class="chapter" data-level="1.4.9.20.4" data-path="../nearby.html" data-name="展示/取消展示附近小程序"><a href="../nearby.html#展示取消展示附近小程序">展示/取消展示附近小程序</a></li>
</ul></li>
<li class="chapter" data-level="1.4.9.21" data-path="../plugin.html" data-name="插件管理"><a href="../plugin.html">插件管理</a></li>
<li class="chapter" data-level="1.4.9.22" data-path="../imgSecCheck.html" data-name="内容安全"><a href="../imgSecCheck.html">内容安全</a>
<ul class="articles">
<li class="chapter" data-level="1.4.9.22.1" data-path="../imgSecCheck.html" data-name="imgSecCheck"><a href="../imgSecCheck.html">imgSecCheck</a></li>
<li class="chapter" data-level="1.4.9.22.2" data-path="../msgSecCheck.html" data-name="msgSecCheck"><a href="../msgSecCheck.html">msgSecCheck</a></li>
</ul></li>
</ul></li>
<li class="chapter open" data-level="1.4.10" data-path="../analysis.html" data-name="数据"><a href="../analysis.html">数据</a>
<ul class="articles">
<li class="chapter" data-level="1.4.10.1" data-path="../analysis.html" data-name="常规分析"><a href="../analysis.html">常规分析</a>
<ul class="articles">
<li class="chapter" data-level="1.4.10.1.1" data-path="../analysis.html" data-name="概况"><a href="../analysis.html#概况">概况</a>
<ul class="articles">
<li class="chapter" data-level="1.4.10.1.1.1" data-path="../analysis.html" data-name="概况趋势"><a href="../analysis.html#概况趋势">概况趋势</a></li>
</ul></li>
<li class="chapter" data-level="1.4.10.1.2" data-path="../analysis-visit.html" data-name="访问分析"><a href="../analysis-visit.html">访问分析</a>
<ul class="articles">
<li class="chapter" data-level="1.4.10.1.2.1" data-path="../analysis-visit.html" data-name="访问趋势"><a href="../analysis-visit.html#访问趋势">访问趋势</a></li>
<li class="chapter" data-level="1.4.10.1.2.2" data-path="../analysis-visit.html" data-name="访问分布"><a href="../analysis-visit.html#访问分布">访问分布</a></li>
<li class="chapter" data-level="1.4.10.1.2.3" data-path="../analysis-visit.html" data-name="访问留存"><a href="../analysis-visit.html#访问留存">访问留存</a></li>
<li class="chapter" data-level="1.4.10.1.2.4" data-path="../analysis-visit.html" data-name="访问页面"><a href="../analysis-visit.html#访问页面">访问页面</a></li>
</ul></li>
<li class="chapter" data-level="1.4.10.1.3" data-path="../analysis-user.html" data-name="用户画像"><a href="../analysis-user.html">用户画像</a></li>
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本页面已暂停更新，请查看<a href="https://developers.weixin.qq.com/miniprogram/dev/api/canvas/CanvasContext.clearRect.html" style="color:#4183c4;text-decoration:none">最新文档</a>
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<h1 id="canvascontextclearrect">canvasContext.clearRect</h1>
<h3 id="定义">定义</h3>
<p>清除画布上在该矩形区域内的内容。</p>
<p><strong>Tip</strong>: clearRect 并非画一个白色的矩形在地址区域，而是清空，为了有直观感受，对 canvas 加了一层背景色。</p>
<pre><code class="language-html"><span class="hljs-tag"><<span class="hljs-name">canvas</span> <span class="hljs-attr">canvas-id</span>=<span class="hljs-string">"myCanvas"</span> <span class="hljs-attr">style</span>=<span class="hljs-string">"border: 1px solid; background: #123456;"</span>/></span>
</code></pre>
<h3 id="参数">参数</h3>
<table>
<thead>
<tr>
<th>参数</th>
<th>类型</th>
<th>说明</th>
</tr>
</thead>
<tbody>
<tr>
<td>x</td>
<td>Number</td>
<td>矩形区域左上角的x坐标</td>
</tr>
<tr>
<td>y</td>
<td>Number</td>
<td>矩形区域左上角的y坐标</td>
</tr>
<tr>
<td>width</td>
<td>Number</td>
<td>矩形区域的宽度</td>
</tr>
<tr>
<td>height</td>
<td>Number</td>
<td>矩形区域的高度</td>
</tr>
</tbody>
</table>
<h3 id="例子">例子</h3>
<pre><code class="language-javascript"><span class="hljs-keyword">const</span> ctx = wx.createCanvasContext(<span class="hljs-string">'myCanvas'</span>)
ctx.setFillStyle(<span class="hljs-string">'red'</span>)
ctx.fillRect(<span class="hljs-number">0</span>, <span class="hljs-number">0</span>, <span class="hljs-number">150</span>, <span class="hljs-number">200</span>)
ctx.setFillStyle(<span class="hljs-string">'blue'</span>)
ctx.fillRect(<span class="hljs-number">150</span>, <span class="hljs-number">0</span>, <span class="hljs-number">150</span>, <span class="hljs-number">200</span>)
ctx.clearRect(<span class="hljs-number">10</span>, <span class="hljs-number">10</span>, <span class="hljs-number">150</span>, <span class="hljs-number">75</span>)
ctx.draw()
</code></pre>
<p><img src="https://developers.weixin.qq.com/miniprogram/dev/image/canvas/clear-rect.png?t=18110615" alt=""></p>
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