{"id":28782,"date":"2024-11-25T13:48:33","date_gmt":"2024-11-25T05:48:33","guid":{"rendered":"https:\/\/fwq.ai\/blog\/28782\/"},"modified":"2024-11-25T13:48:33","modified_gmt":"2024-11-25T05:48:33","slug":"%e5%be%ae%e4%bf%a1%e5%b0%8f%e7%a8%8b%e5%ba%8f0-11-122100-%e7%89%88%e6%9c%ac%e6%9b%b4%e6%96%b0%e8%af%a6%e6%83%85%e4%bb%8b%e7%bb%8d","status":"publish","type":"post","link":"https:\/\/fwq.ai\/blog\/28782\/","title":{"rendered":"\u5fae\u4fe1\u5c0f\u7a0b\u5e8f0.11.122100 \u7248\u672c\u66f4\u65b0\u8be6\u60c5\u4ecb\u7ecd"},"content":{"rendered":"<p>0.11.122100 \u66f4\u65b0\u6982\u8ff0<\/p>\n<p><\/p>\n<ul>\n<li>\n<p>\u65b0\u589e 4 \u4e2a\u65b0 api\uff0c 2\u4e2a\u65b0\u7ec4\u4ef6<\/p>\n<\/li>\n<li>\n<p>\u62d3\u5c55\u4e86 10 \u4e2a\u7ec4\u4ef6\u5c5e\u6027\uff0c\u65b0\u589e 6 \u4e2a\u7ec4\u4ef6\u4e8b\u4ef6<\/p>\n<\/li>\n<li>\n<p>\u4fee\u590d\u6570\u5341\u4e2a API \u4ee5\u53ca\u7ec4\u4ef6 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CanvasContext.strokeRect() \u4e0a\u4e0b\u6587 API<\/p>\n<\/li>\n<li>\n<p>A \u65b0\u589e CanvasContext.createLinearGradient() \u4e0a\u4e0b\u6587 API<\/p>\n<\/li>\n<li>\n<p>A \u65b0\u589e CanvasContext.createCircularGradient() \u4e0a\u4e0b\u6587 API<\/p>\n<\/li>\n<li>\n<p>A \u65b0\u589e  \u7ec4\u4ef6\u8868\u73b0 \u6eda\u52a8\u65f6\u7981\u6b62\u5c06\u9875\u9762\u6eda\u52a8<\/p>\n<\/li>\n<li>\n<p>U \u66f4\u65b0 API wx.getSystemInfo \u65b0\u589e platform \u8fd4\u56de\u53c2\u6570<\/p>\n<\/li>\n<li>\n<p>U \u66f4\u65b0 API wx.downloadFile \u5f53 HTTP \u72b6\u6001\u7801\u4e3a 200 \u6216 304 \u7684\u65f6\u5019\u4f1a\u8fd4\u56de tmpFilePath<\/p>\n<\/li>\n<li>\n<p>U \u66f4\u65b0 API wx.showModal \u8c03\u7528\u53c2\u6570 confirmText cancelText \u7684\u5b57\u6570\u9650\u5236<\/p>\n<\/li>\n<li>\n<p>U \u66f4\u65b0 WXML dataset \u8fd4\u56de \u652f\u6301 Object \u548c Array<\/p>\n<\/li>\n<li>\n<p>U \u66f4\u65b0 <img> \u7ec4\u4ef6\u5c5e\u6027 mode \u53ef\u9009 widthFix<\/p>\n<\/li>\n<li>\n<p>U 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type=gcj02 \u5728 iOS \u4e0a\u4e0d\u751f\u6548\u7684\u95ee\u9898<\/p>\n<\/li>\n<li>\n<p>F \u4fee\u590d wx.showToast \u9000\u51fa\u5c0f\u7a0b\u5e8f\u540e\u4f9d\u7136\u663e\u793a\u7684\u95ee\u9898<\/p>\n<\/li>\n<li>\n<p>F \u4fee\u590d wx.showModal \u8fd4\u56de\u53c2\u6570\u5728 Android \u548c iOS \u4e0d\u4e00\u81f4\u7684\u95ee\u9898<\/p>\n<\/li>\n<li>\n<p>F \u4fee\u590d wx.showModal content \u592a\u957f\u65f6\u6216 title \u4e3a\u7a7a\u65f6\uff0c\u5e03\u5c40\u9519\u4e71\u7684\u95ee\u9898<\/p>\n<\/li>\n<li>\n<p>F \u4fee\u590d wx.showModal cancelText \u548c confirmText \u4e3a\u7a7a\u65f6\uff0c\u6ca1\u6709\u663e\u793a\u9ed8\u8ba4\u503c\u7684\u95ee\u9898<\/p>\n<\/li>\n<li>\n<p>F \u4fee\u590d wx.showModal \u671f\u95f4\uff0c\u952e\u76d8\u5f39\u51fa\uff0c\u65e0\u6cd5\u6536\u8d77\u952e\u76d8\u7684\u95ee\u9898<\/p>\n<\/li>\n<li>\n<p>F \u4fee\u590d wx.getImageInfo \u5728 Android \u65e0\u6cd5\u83b7\u53d6 http \u94fe\u63a5\u56fe\u7247\u7684\u95ee\u9898<\/p>\n<\/li>\n<li>\n<p>F \u4fee\u590d 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\u5931\u6548\u7684\u95ee\u9898<\/p>\n<\/li>\n<li>\n<p>F \u4fee\u590d <\/p>\n<p>  submit \u53d6\u4e0d\u5230 input \u7684\u5185\u5bb9\u7684\u95ee\u9898<\/li>\n<li>\n<p>D \u5373\u5c06\u79fb\u9664  redirect \u5c5e\u6027<\/p>\n<\/li>\n<li>\n<p>D \u5373\u5c06\u79fb\u9664 wx.createContext \u63a5\u53e3<\/p>\n<\/li>\n<li>\n<p>D \u5373\u5c06\u79fb\u9664  auto-focus \u5c5e\u6027\uff0c\u76f4\u63a5\u4f7f\u7528 focus \u5c5e\u6027\u5373\u53ef<\/p>\n<\/li>\n<li>\n<p>D \u5373\u5c06\u79fb\u9664  covers \u5c5e\u6027<\/p>\n<\/li>\n<\/ul>\n<p>\u5f00\u53d1\u8005\u5de5\u5177\u57fa\u7840\u529f\u80fd <\/p>\n<ul>\n<li>\n<p>A \u65b0\u589e wx.switchTab \u7684\u8c03\u8bd5\u652f\u6301<\/p>\n<\/li>\n<li>\n<p>A \u65b0\u589e wx.startRecord wx.stopRecord wx.playVoice wx.pauseVoice wx.stopVoice API \u8c03\u8bd5\u652f\u6301<\/p>\n<\/li>\n<li>\n<p>A \u65b0\u589e \u5fae\u4fe1\u652f\u4ed8\u8c03\u8bd5\u652f\u6301<\/p>\n<\/li>\n<li>\n<p>A \u65b0\u589e \u4e8c\u7ef4\u7801\u626b\u7801\u8c03\u8bd5\u652f\u6301<\/p>\n<\/li>\n<li>\n<p>A \u65b0\u589e app.json \u91cd\u590d\u5b9a\u4e49\u9875\u9762\u6587\u4ef6\u5bfc\u81f4\u63d0\u4ea4\u9884\u89c8\u9519\u8bef\u7684\u63d0\u793a<\/p>\n<\/li>\n<li>\n<p>A \u65b0\u589e \u6a21\u62df\u5668\u52a0\u8f7d\u56fe\u7247\u7f51\u7edc\u9519\u8bef\u7684\u63d0\u793a\u4fe1\u606f<\/p>\n<\/li>\n<li>\n<p>A \u65b0\u589e \u7f16\u8bd1\u65f6\u5019\u8bbe\u7f6e\u521d\u59cb\u5316\u9875\u9762\u4ee5\u53ca\u53c2\u6570\u7684\u529f\u80fd<\/p>\n<\/li>\n<li>\n<p>A \u65b0\u589e \u63d0\u4ea4\u9884\u89c8\u65f6\u5019\u8bbe\u7f6e\u521d\u59cb\u5316\u9875\u9762\u4ee5\u53ca\u53c2\u6570\u7684\u529f\u80fd<\/p>\n<\/li>\n<li>\n<p>F \u4f18\u5316 appdata panel \u5206\u9875\u9762\u67e5\u770b\u6570\u636e\uff0c\u652f\u6301\u52a8\u6001\u66f4\u65b0\u4ee5\u53ca code \u6a21\u5f0f\u663e\u793a<\/p>\n<\/li>\n<li>\n<p>F \u4fee\u590d wx.getBackgroundAudioPlayerState \u5728\u6ca1\u6709\u97f3\u4e50\u64ad\u653e\u7684\u65f6\u5019\u65e0\u8fd4\u56de\u7684\u95ee\u9898<\/p>\n<\/li>\n<li>\n<p>F \u4fee\u590d wx.getBackgroundAudioPlayerState \u83b7\u53d6 status \u4e0d\u6b63\u786e\u7684\u95ee\u9898<\/p>\n<\/li>\n<li>\n<p>F \u4fee\u590d wxml panel \u67d0\u4e9b\u60c5\u51b5\u4e0b\u767d\u5c4f\u7684\u95ee\u9898<\/p>\n<\/li>\n<li>\n<p>F \u4fee\u590d wxml panel \u5c5e\u6027\u65e0\u6cd5\u590d\u5236\uff0c\u5e76\u4e14\u590d\u5236\u5e26\u6709\u56de\u8f66\u7684\u95ee\u9898<\/p>\n<\/li>\n<li>\n<p>F \u4fee\u590d wxml panel \u5355\u4e00\u6587\u672c\u8282\u70b9\u5c55\u793a\u6ca1\u6709\u5bf9\u9f50\u7684\u95ee\u9898<\/p>\n<\/li>\n<li>\n<p>F \u4fee\u590d app.json \u4e2d tabbar \u7684 position \u8bbe\u7f6e\u4e3a top \u65f6\u6a21\u62df\u5668\u663e\u793a\u9519\u8bef\u7684\u95ee\u9898<\/p>\n<\/li>\n<li>\n<p>F \u4fee\u590d devtools \u548c\u7f16\u8f91\u5668\u4e2d\u70b9\u51fb\u5916\u90e8\u94fe\u63a5\u9519\u8bef\u7684\u95ee\u9898<\/p>\n<\/li>\n<li>\n<p>F \u4fee\u590d wx.requst \u56e0\u4e3a\u7f13\u5b58\u65e0\u6cd5\u53d1\u9001\u8bf7\u6c42\u7684\u95ee\u9898<\/p>\n<\/li>\n<\/ul>\n<p>\u4ee5\u4e0b\u662f\u66f4\u65b0\u8be6\u60c5\uff1a <\/p>\n<p>wx.switchTab(OBJECT) <\/p>\n<p>\u8df3\u8f6c\u5230 tabBar \u9875\u9762\uff0c\u5e76\u5173\u95ed\u5176\u4ed6\u6240\u6709\u975e tabBar \u9875\u9762<br \/>\n<br \/>OBJECT \u53c2\u6570\u8bf4\u660e\uff1a<br \/>\n<br \/>[tr]\u53c2\u6570\u7c7b\u578b\u5fc5\u586b\u8bf4\u660e[\/tr] <\/p>\n<table>\n<tbody>\n<tr>\n<td>url<\/td>\n<td>String<\/td>\n<td>\u662f<\/td>\n<td>\u9700\u8981\u8df3\u8f6c\u7684 tabBar \u9875\u9762\u7684\u8def\u5f84\uff08\u9700\u5728 app.json \u7684&nbsp;&nbsp;\u5b57\u6bb5\u5b9a\u4e49\u7684\u9875\u9762\uff09\uff0c\u8def\u5f84\u540e\u4e0d\u80fd\u5e26\u53c2\u6570<\/td>\n<\/tr>\n<tr>\n<td>success<\/td>\n<td>Function<\/td>\n<td>\u5426<\/td>\n<td>\u63a5\u53e3\u8c03\u7528\u6210\u529f\u7684\u56de\u8c03\u51fd\u6570<\/td>\n<\/tr>\n<tr>\n<td>fail<\/td>\n<td>Function<\/td>\n<td>\u5426<\/td>\n<td>\u63a5\u53e3\u8c03\u7528\u5931\u8d25\u7684\u56de\u8c03\u51fd\u6570<\/td>\n<\/tr>\n<tr>\n<td>complete<\/td>\n<td>Function<\/td>\n<td>\u5426<\/td>\n<td>\u63a5\u53e3\u8c03\u7528\u7ed3\u675f\u7684\u56de\u8c03\u51fd\u6570\uff08\u8c03\u7528\u6210\u529f\u3001\u5931\u8d25\u90fd\u4f1a\u6267\u884c\uff09<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<p>\u793a\u4f8b\u4ee3\u7801\uff1a<br \/>\n<br \/>{ &#8220;tabBar&#8221;: { &#8220;list&#8221;: [{ &#8220;pagePath&#8221;: &#8220;index&#8221;, &#8220;text&#8221;: &#8220;\u9996\u9875&#8221; },{ &#8220;pagePath&#8221;: &#8220;other&#8221;, &#8220;text&#8221;: &#8220;\u5176\u4ed6&#8221; }] }}wx.switchTab({ url: &#8216;\/index&#8217;}) <\/p>\n<p>wx.scanCode(OBJECT) <\/p>\n<p>\u8c03\u8d77\u5ba2\u6237\u7aef\u626b\u7801\u754c\u9762\uff0c\u626b\u7801\u6210\u529f\u540e\u8fd4\u56de\u5bf9\u5e94\u7684\u7ed3\u679c<br \/>\n<br \/>Object \u53c2\u6570\u8bf4\u660e\uff1a<br \/>\n<br \/>[tr]\u53c2\u6570\u7c7b\u578b\u5fc5\u586b\u8bf4\u660e[\/tr] <\/p>\n<table>\n<tbody>\n<tr>\n<td>success<\/td>\n<td>Function<\/td>\n<td>\u5426<\/td>\n<td>\u63a5\u53e3\u8c03\u7528\u6210\u529f\u7684\u56de\u8c03\u51fd\u6570\uff0c\u8fd4\u56de\u5185\u5bb9\u8be6\u89c1\u8fd4\u56de\u53c2\u6570\u8bf4\u660e\u3002<\/td>\n<\/tr>\n<tr>\n<td>fail<\/td>\n<td>Function<\/td>\n<td>\u5426<\/td>\n<td>\u63a5\u53e3\u8c03\u7528\u5931\u8d25\u7684\u56de\u8c03\u51fd\u6570<\/td>\n<\/tr>\n<tr>\n<td>complete<\/td>\n<td>Function<\/td>\n<td>\u5426<\/td>\n<td>\u63a5\u53e3\u8c03\u7528\u7ed3\u675f\u7684\u56de\u8c03\u51fd\u6570\uff08\u8c03\u7528\u6210\u529f\u3001\u5931\u8d25\u90fd\u4f1a\u6267\u884c\uff09<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<p>success\u8fd4\u56de\u53c2\u6570\u8bf4\u660e\uff1a<br \/>\n<br \/>[tr]\u53c2\u6570\u8bf4\u660e[\/tr] <\/p>\n<table>\n<tbody>\n<tr>\n<td>result<\/td>\n<td>\u7801\u7684\u5185\u5bb9<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<p>\u793a\u4f8b\u4ee3\u7801\uff1a<br \/>\n<br \/>wx.scanCode({ success: (res) =&gt; { console.log(res) }}) <\/p>\n<p>onShareAppMessage <\/p>\n<p>\u5728 Page \u4e2d\u5b9a\u4e49 onShareAppMessage \u51fd\u6570\uff0c\u8bbe\u7f6e\u8be5\u9875\u9762\u7684\u5206\u4eab\u4fe1\u606f\u3002<br \/>\n <\/p>\n<ul>\n<li>\n<p>\u53ea\u6709\u5b9a\u4e49\u4e86\u6b64\u4e8b\u4ef6\u5904\u7406\u51fd\u6570\uff0c\u53f3\u4e0a\u89d2\u83dc\u5355\u624d\u4f1a\u663e\u793a\u201c\u5206\u4eab\u201d\u6309\u94ae<\/p>\n<\/li>\n<li>\n<p>\u7528\u6237\u70b9\u51fb\u5206\u4eab\u6309\u94ae\u7684\u65f6\u5019\u4f1a\u8c03\u7528<\/p>\n<\/li>\n<li>\n<p>\u6b64\u4e8b\u4ef6\u9700\u8981 return \u4e00\u4e2a Object\uff0c\u7528\u4e8e\u81ea\u5b9a\u4ee5\u5206\u4eab\u5185\u5bb9<\/p>\n<\/li>\n<\/ul>\n<p>\u81ea\u5b9a\u4e49\u5206\u4eab\u5b57\u6bb5<br \/>\n<br \/>[tr]\u5b57\u6bb5\u8bf4\u660e\u9ed8\u8ba4\u503c[\/tr] <\/p>\n<table>\n<tbody>\n<tr>\n<td>title<\/td>\n<td>\u5206\u4eab\u6807\u9898<\/td>\n<td>\u5f53\u524d\u5c0f\u7a0b\u5e8f\u540d\u79f0<\/td>\n<\/tr>\n<tr>\n<td>desc<\/td>\n<td>\u5206\u4eab\u63cf\u8ff0<\/td>\n<td>\u5f53\u524d\u5c0f\u7a0b\u5e8f\u540d\u79f0<\/td>\n<\/tr>\n<tr>\n<td>path<\/td>\n<td>\u5206\u4eab\u8def\u5f84<\/td>\n<td>\u5f53\u524d\u9875\u9762 path \uff0c\u5fc5\u987b\u662f\u4ee5 \/ \u5f00\u5934\u7684\u5b8c\u6574\u8def\u5f84<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<p>\u793a\u4f8b\u4ee3\u7801\uff1a<br \/>\n<br \/>Page({ onShareAppMessage: function () { return { title: &#8216;\u81ea\u5b9a\u4e49\u5206\u4eab\u6807\u9898&#8217;, desc: &#8216;\u81ea\u5b9a\u4e49\u5206\u4eab\u63cf\u8ff0&#8217;, path: &#8216;\/page\/user?id=123&#8217; } }}) <\/p>\n<p>wx.showToast(OBJECT) <\/p>\n<p>\u663e\u793a\u6d88\u606f\u63d0\u793a\u6846<br \/>\n<br \/>OBJECT\u53c2\u6570\u8bf4\u660e\uff1a<br \/>\n<br \/>[tr]\u53c2\u6570\u7c7b\u578b\u5fc5\u586b\u8bf4\u660e[\/tr] <\/p>\n<table>\n<tbody>\n<tr>\n<td>title<\/td>\n<td>String<\/td>\n<td>\u662f<\/td>\n<td>\u63d0\u793a\u7684\u5185\u5bb9<\/td>\n<\/tr>\n<tr>\n<td>icon<\/td>\n<td>String<\/td>\n<td>\u5426<\/td>\n<td>\u56fe\u6807\uff0c\u53ea\u652f\u6301&#8221;success&#8221;\u3001&#8221;loading&#8221;<\/td>\n<\/tr>\n<tr>\n<td>duration<\/td>\n<td>Number<\/td>\n<td>\u5426<\/td>\n<td>\u63d0\u793a\u7684\u5ef6\u8fdf\u65f6\u95f4\uff0c\u5355\u4f4d\u6beb\u79d2\uff0c\u9ed8\u8ba4\uff1a1500, \u6700\u5927\u4e3a10000<\/td>\n<\/tr>\n<tr>\n<td>mask<\/td>\n<td>Boolean<\/td>\n<td>\u5426<\/td>\n<td>\u662f\u5426\u663e\u793a\u900f\u660e\u8499\u5c42\uff0c\u9632\u6b62\u89e6\u6478\u7a7f\u900f\uff0c\u9ed8\u8ba4\uff1afalse<\/td>\n<\/tr>\n<tr>\n<td>success<\/td>\n<td>Function<\/td>\n<td>\u5426<\/td>\n<td>\u63a5\u53e3\u8c03\u7528\u6210\u529f\u7684\u56de\u8c03\u51fd\u6570<\/td>\n<\/tr>\n<tr>\n<td>fail<\/td>\n<td>Function<\/td>\n<td>\u5426<\/td>\n<td>\u63a5\u53e3\u8c03\u7528\u5931\u8d25\u7684\u56de\u8c03\u51fd\u6570<\/td>\n<\/tr>\n<tr>\n<td>complete<\/td>\n<td>Function<\/td>\n<td>\u5426<\/td>\n<td>\u63a5\u53e3\u8c03\u7528\u7ed3\u675f\u7684\u56de\u8c03\u51fd\u6570\uff08\u8c03\u7528\u6210\u529f\u3001\u5931\u8d25\u90fd\u4f1a\u6267\u884c\uff09<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<p>\u793a\u4f8b\u4ee3\u7801\uff1a<br \/>\n<br \/>wx.showToast({ title: &#8216;\u6210\u529f&#8217;, icon: &#8216;success&#8217;, duration: 2000}) <\/p>\n<p>onShareAppMessage <\/p>\n<p>\u5728 Page \u4e2d\u5b9a\u4e49 onShareAppMessage \u51fd\u6570\uff0c\u8bbe\u7f6e\u8be5\u9875\u9762\u7684\u5206\u4eab\u4fe1\u606f\u3002<br \/>\n <\/p>\n<ul>\n<li>\n<p>\u53ea\u6709\u5b9a\u4e49\u4e86\u6b64\u4e8b\u4ef6\u5904\u7406\u51fd\u6570\uff0c\u53f3\u4e0a\u89d2\u83dc\u5355\u624d\u4f1a\u663e\u793a\u201c\u5206\u4eab\u201d\u6309\u94ae<\/p>\n<\/li>\n<li>\n<p>\u7528\u6237\u70b9\u51fb\u5206\u4eab\u6309\u94ae\u7684\u65f6\u5019\u4f1a\u8c03\u7528<\/p>\n<\/li>\n<li>\n<p>\u6b64\u4e8b\u4ef6\u9700\u8981 return \u4e00\u4e2a Object\uff0c\u7528\u4e8e\u81ea\u5b9a\u4ee5\u5206\u4eab\u5185\u5bb9<\/p>\n<\/li>\n<\/ul>\n<p>\u81ea\u5b9a\u4e49\u5206\u4eab\u5b57\u6bb5<br \/>\n<br \/>[tr]\u5b57\u6bb5\u8bf4\u660e\u9ed8\u8ba4\u503c[\/tr] <\/p>\n<table>\n<tbody>\n<tr>\n<td>title<\/td>\n<td>\u5206\u4eab\u6807\u9898<\/td>\n<td>\u5f53\u524d\u5c0f\u7a0b\u5e8f\u540d\u79f0<\/td>\n<\/tr>\n<tr>\n<td>desc<\/td>\n<td>\u5206\u4eab\u63cf\u8ff0<\/td>\n<td>\u5f53\u524d\u5c0f\u7a0b\u5e8f\u540d\u79f0<\/td>\n<\/tr>\n<tr>\n<td>path<\/td>\n<td>\u5206\u4eab\u8def\u5f84<\/td>\n<td>\u5f53\u524d\u9875\u9762 path \uff0c\u5fc5\u987b\u662f\u4ee5 \/ \u5f00\u5934\u7684\u5b8c\u6574\u8def\u5f84<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<p>\u793a\u4f8b\u4ee3\u7801\uff1a<br \/>\n<br \/>Page({ onShareAppMessage: function () { return { title: &#8216;\u81ea\u5b9a\u4e49\u5206\u4eab\u6807\u9898&#8217;, desc: &#8216;\u81ea\u5b9a\u4e49\u5206\u4eab\u63cf\u8ff0&#8217;, path: &#8216;\/page\/user?id=123&#8217; } }}) <\/p>\n<p>wx.createCanvasContext(canvasId) <\/p>\n<p>\u5b9a\u4e49 <\/p>\n<p>\u521b\u5efa canvas \u7ed8\u56fe\u4e0a\u4e0b\u6587\uff08\u6307\u5b9a canvasId\uff09<br \/>\n<br \/>Tip: \u9700\u8981\u6307\u5b9a canvasId\uff0c\u8be5\u7ed8\u56fe\u4e0a\u4e0b\u6587\u53ea\u4f5c\u7528\u4e8e\u5bf9\u5e94\u7684  <\/p>\n<p>\u53c2\u6570 <\/p>\n<p>[tr]\u53c2\u6570\u7c7b\u578b\u8bf4\u660e[\/tr] <\/p>\n<table>\n<tbody>\n<tr>\n<td>canvasId<\/td>\n<td>String<\/td>\n<td>\u753b\u5e03\u8868\u793a\uff0c\u4f20\u5165\u5b9a\u4e49\u5728  \u7684 canvas-id<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<p>\u65b0\u589e\u7ec4\u4ef6\uff1a <\/p>\n<p>audioContext <\/p>\n<p>audioContext \u901a\u8fc7 audioId \u8ddf\u4e00\u4e2a  \u7ec4\u4ef6\u7ed1\u5b9a\uff0c\u901a\u8fc7\u5b83\u53ef\u4ee5\u64cd\u4f5c\u5bf9\u5e94\u7684  \u7ec4\u4ef6\u3002<br \/>\n<br \/>audioContext \u5bf9\u8c61\u7684\u65b9\u6cd5\u5217\u8868\uff1a<br \/>\n<br \/>[tr]\u65b9\u6cd5\u53c2\u6570\u8bf4\u660e[\/tr] <\/p>\n<table>\n<tbody>\n<tr>\n<td>setSrc<\/td>\n<td>src<\/td>\n<td>\u97f3\u9891\u7684\u5730\u5740<\/td>\n<\/tr>\n<tr>\n<td>play<\/td>\n<td>\u65e0<\/td>\n<td>\u64ad\u653e<\/td>\n<\/tr>\n<tr>\n<td>pause<\/td>\n<td>\u65e0<\/td>\n<td>\u6682\u505c<\/td>\n<\/tr>\n<tr>\n<td>seek<\/td>\n<td>position<\/td>\n<td>\u8df3\u8f6c\u5230\u6307\u5b9a\u4f4d\u7f6e\uff0c\u5355\u4f4d s<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<p>\u793a\u4f8b\u4ee3\u7801\uff1a<br \/>\n<br \/>   \u64ad\u653e \u6682\u505c \u8bbe\u7f6e\u5f53\u524d\u64ad\u653e\u65f6\u95f4\u4e3a14\u79d2 \u56de\u5230\u5f00\u5934\/\/ audio.jsPage({ onReady: function (e) { \/\/ \u4f7f\u7528 wx.createAudioContext \u83b7\u53d6 audio \u4e0a\u4e0b\u6587 context this.audioCtx = wx.createAudioContext(&#8216;myAudio&#8217;) this.audioCtx.setSrc(&#8216;http:\/\/ws.stream.qqmusic.qq.com\/M500001VfvsJ21xFqb.mp3?guid=ffffffff82def4af4b12b3cd9337d5e7&amp;uin=346897220&amp;vkey=6292F51E1E384E06DCBDC9AB7C49FD713D632D313AC4858BACB8DDD29067D3C601481D36E62053BF8DFEAF74C0A5CCFADD6471160CAF3E6A&amp;fromtag=46&#8217;) this.audioCtx.play() }, data: { src: &#8221; }, audioPlay: function () { this.audioCtx.play() }, audioPause: function () { this.audioCtx.pause() }, audio14: function () { this.audioCtx.seek(14) }, audioStart: function () { this.audioCtx.seek(0) }}) <\/p>\n<p><img decoding=\"async\" src=\"https:\/\/img.php.cn\/\/upload\/image\/189\/517\/243\/1488964166491492.png\" style=\"max-width:90%\" class=\"aligncenter\" title=\"\u5fae\u4fe1\u5c0f\u7a0b\u5e8f0.11.122100 \u7248\u672c\u66f4\u65b0\u8be6\u60c5\u4ecb\u7ecd\u63d2\u56fe\" alt=\"\u5fae\u4fe1\u5c0f\u7a0b\u5e8f0.11.122100 \u7248\u672c\u66f4\u65b0\u8be6\u60c5\u4ecb\u7ecd\u63d2\u56fe\" \/> <\/p>\n<p>picker-view <\/p>\n<p>\u5d4c\u5165\u9875\u9762\u7684\u6eda\u52a8\u9009\u62e9\u5668<br \/>\n<br \/>[tr]\u5c5e\u6027\u540d\u7c7b\u578b\u9ed8\u8ba4\u503c\u8bf4\u660e[\/tr] <\/p>\n<table>\n<tbody>\n<tr>\n<td>value<\/td>\n<td>Number Array<\/td>\n<td><\/td>\n<td>\u6570\u7ec4\u4e2d\u7684\u6570\u5b57\u4f9d\u6b21\u8868\u793a picker-view \u5185\u7684 picker-view-colume \u9009\u62e9\u7684\u7b2c\u51e0\u9879\uff08\u4e0b\u6807\u4ece 0 \u5f00\u59cb\uff09\uff0c\u6570\u5b57\u5927\u4e8e picker-view-column \u53ef\u9009\u9879\u957f\u5ea6\u65f6\uff0c\u9009\u62e9\u6700\u540e\u4e00\u9879\u3002<\/td>\n<\/tr>\n<tr>\n<td>indicator-style<\/td>\n<td>String<\/td>\n<td><\/td>\n<td>\u8bbe\u7f6e\u9009\u62e9\u5668\u4e2d\u95f4\u9009\u4e2d\u6846\u7684\u6837\u5f0f<\/td>\n<\/tr>\n<tr>\n<td>bindchange<\/td>\n<td>EventHandle<\/td>\n<td><\/td>\n<td>\u5f53\u6eda\u52a8\u9009\u62e9\uff0cvalue \u6539\u53d8\u65f6\u89e6\u53d1 change \u4e8b\u4ef6\uff0cevent.detail = {value: value}\uff1bvalue\u4e3a\u6570\u7ec4\uff0c\u8868\u793a picker-view \u5185\u7684 picker-view-column \u5f53\u524d\u9009\u62e9\u7684\u662f\u7b2c\u51e0\u9879\uff08\u4e0b\u6807\u4ece 0 \u5f00\u59cb\uff09<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<p>\u6ce8\u610f\uff1a\u5176\u4e2d\u53ea\u53ef\u653e\u7f6e \u7ec4\u4ef6\uff0c\u5176\u4ed6\u8282\u70b9\u4e0d\u4f1a\u663e\u793a\u3002 <\/p>\n<p>picker-view-column <\/p>\n<p>\u4ec5\u53ef\u653e\u7f6e\u4e8e \u4e2d\uff0c\u5176\u5b69\u5b50\u8282\u70b9\u7684\u9ad8\u5ea6\u4f1a\u81ea\u52a8\u8bbe\u7f6e\u6210\u4e0epicker-view\u7684\u9009\u4e2d\u6846\u7684\u9ad8\u5ea6\u4e00\u81f4<br \/>\n<br \/>\u793a\u4f8b\u4ee3\u7801\uff1a<br \/>\n<br \/>   {{year}}\u5e74{{month}}\u6708{{day}}\u65e5     {{item}}\u5e74     {{item}}\u6708     {{item}}\u65e5    const date = new Date()const years = []const months = []const days = []for (let i = 1990; i Canvas\u589e\u5f3a<br \/>\n <\/p>\n<ul>\n<li>\n<p>A \u65b0\u589e CanvasContext \u4e0a\u4e0b\u6587<\/p>\n<\/li>\n<li>\n<p>A \u65b0\u589e CanvasContext.arc() \u4e0a\u4e0b\u6587 API<\/p>\n<\/li>\n<li>\n<p>A \u65b0\u589e CanvasContext.fillRect() \u4e0a\u4e0b\u6587 API<\/p>\n<\/li>\n<li>\n<p>A \u65b0\u589e CanvasContext.strokeRect() \u4e0a\u4e0b\u6587 API<\/p>\n<\/li>\n<li>\n<p>A \u65b0\u589e CanvasContext.createLinearGradient() \u4e0a\u4e0b\u6587 API<\/p>\n<\/li>\n<li>\n<p>A \u65b0\u589e CanvasContext.createCircularGradient() \u4e0a\u4e0b\u6587 API<\/p>\n<\/li>\n<\/ul>\n<p>createCircularGradient <\/p>\n<p>\u5b9a\u4e49 <\/p>\n<p>\u521b\u5efa\u4e00\u4e2a\u5706\u5f62\u7684\u6e10\u53d8\u989c\u8272\u3002<br \/>\n<br \/>Tip: \u8d77\u70b9\u5728\u5706\u5fc3\uff0c\u7ec8\u70b9\u5728\u5706\u73af\u3002<br \/>\n<br \/>Tip: \u9700\u8981\u4f7f\u7528 addColorStop() \u6765\u6307\u5b9a\u6e10\u53d8\u70b9\uff0c\u81f3\u5c11\u8981\u4e24\u4e2a\u3002 <\/p>\n<p>\u53c2\u6570 <\/p>\n<p>[tr]\u53c2\u6570\u7c7b\u578b\u5b9a\u4e49[\/tr] <\/p>\n<table>\n<tbody>\n<tr>\n<td>x<\/td>\n<td>Number<\/td>\n<td>\u5706\u5fc3\u7684x\u5750\u6807<\/td>\n<\/tr>\n<tr>\n<td>y<\/td>\n<td>Number<\/td>\n<td>\u5706\u5fc3\u7684y\u5750\u6807<\/td>\n<\/tr>\n<tr>\n<td>r<\/td>\n<td>Number<\/td>\n<td>\u5706\u7684\u534a\u5f84<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<p>\u4f8b\u5b50 <\/p>\n<p>const ctx = wx.createCanvasContext(&#8216;myCanvas&#8217;)\/\/ Create circular gradientconst grd = ctx.createCircularGradient(75, 50, 50)grd.addColorStop(0, &#8216;red&#8217;)grd.addColorStop(1, &#8216;white&#8217;)\/\/ Fill with gradientctx.setFillStyle(grd)ctx.fillRect(10, 10, 150, 80)ctx.draw() <\/p>\n<p><img decoding=\"async\" src=\"https:\/\/img.php.cn\/\/upload\/image\/423\/329\/798\/1488964146381136.png\" style=\"max-width:90%\" class=\"aligncenter\" title=\"\u5fae\u4fe1\u5c0f\u7a0b\u5e8f0.11.122100 \u7248\u672c\u66f4\u65b0\u8be6\u60c5\u4ecb\u7ecd\u63d2\u56fe1\" alt=\"\u5fae\u4fe1\u5c0f\u7a0b\u5e8f0.11.122100 \u7248\u672c\u66f4\u65b0\u8be6\u60c5\u4ecb\u7ecd\u63d2\u56fe1\" \/> <\/p>\n<p>createLinearGradient <\/p>\n<p>\u5b9a\u4e49 <\/p>\n<p>\u521b\u5efa\u4e00\u4e2a\u7ebf\u6027\u7684\u6e10\u53d8\u989c\u8272\u3002<br \/>\n<br \/>Tip: \u9700\u8981\u4f7f\u7528 addColorStop() \u6765\u6307\u5b9a\u6e10\u53d8\u70b9\uff0c\u81f3\u5c11\u8981\u4e24\u4e2a\u3002 <\/p>\n<p>\u53c2\u6570 <\/p>\n<p>[tr]\u53c2\u6570\u7c7b\u578b\u5b9a\u4e49[\/tr] <\/p>\n<table>\n<tbody>\n<tr>\n<td>x0<\/td>\n<td>Number<\/td>\n<td>\u8d77\u70b9\u7684x\u5750\u6807<\/td>\n<\/tr>\n<tr>\n<td>y0<\/td>\n<td>Number<\/td>\n<td>\u8d77\u70b9\u7684y\u5750\u6807<\/td>\n<\/tr>\n<tr>\n<td>x1<\/td>\n<td>Number<\/td>\n<td>\u7ec8\u70b9\u7684x\u5750\u6807<\/td>\n<\/tr>\n<tr>\n<td>y1<\/td>\n<td>Number<\/td>\n<td>\u7ec8\u70b9\u7684y\u5750\u6807<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<p>\u4f8b\u5b50 <\/p>\n<p>const ctx = wx.createCanvasContext(&#8216;myCanvas&#8217;)\/\/ Create linear gradientconst grd = ctx.createLinearGradient(0, 0, 200, 0)grd.addColorStop(0, &#8216;red&#8217;)grd.addColorStop(1, &#8216;white&#8217;)\/\/ Fill with gradientctx.setFillStyle(grd)ctx.fillRect(10, 10, 150, 80)ctx.draw()<br \/>\n<br \/> <br \/>\n<img decoding=\"async\" src=\"https:\/\/img.php.cn\/\/upload\/image\/319\/264\/577\/1488964126768032.png\" style=\"max-width:90%\" class=\"aligncenter\" title=\"\u5fae\u4fe1\u5c0f\u7a0b\u5e8f0.11.122100 \u7248\u672c\u66f4\u65b0\u8be6\u60c5\u4ecb\u7ecd\u63d2\u56fe2\" alt=\"\u5fae\u4fe1\u5c0f\u7a0b\u5e8f0.11.122100 \u7248\u672c\u66f4\u65b0\u8be6\u60c5\u4ecb\u7ecd\u63d2\u56fe2\" \/><br \/>\n<br \/>strokeRect <\/p>\n<p>\u5b9a\u4e49 <\/p>\n<p>\u753b\u4e00\u4e2a\u77e9\u5f62(\u975e\u586b\u5145)\u3002<br \/>\n<br \/>Tip: \u7528 setFillStroke() \u8bbe\u7f6e\u77e9\u5f62\u7ebf\u6761\u7684\u989c\u8272\uff0c\u5982\u679c\u6ca1\u8bbe\u7f6e\u9ed8\u8ba4\u662f\u9ed1\u8272\u3002 <\/p>\n<p>\u53c2\u6570 <\/p>\n<p>[tr]\u53c2\u6570\u7c7b\u578b\u8303\u56f4\u8bf4\u660e[\/tr] <\/p>\n<table>\n<tbody>\n<tr>\n<td>x<\/td>\n<td>Number<\/td>\n<td><\/td>\n<td>\u77e9\u5f62\u8def\u5f84\u5de6\u4e0a\u89d2\u7684x\u5750\u6807<\/td>\n<\/tr>\n<tr>\n<td>y<\/td>\n<td>Number<\/td>\n<td><\/td>\n<td>\u77e9\u5f62\u8def\u5f84\u5de6\u4e0a\u89d2\u7684y\u5750\u6807<\/td>\n<\/tr>\n<tr>\n<td>width<\/td>\n<td>Number<\/td>\n<td><\/td>\n<td>\u77e9\u5f62\u8def\u5f84\u7684\u5bbd\u5ea6<\/td>\n<\/tr>\n<tr>\n<td>height<\/td>\n<td>Number<\/td>\n<td><\/td>\n<td>\u77e9\u5f62\u8def\u5f84\u7684\u9ad8\u5ea6<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<p>\u4f8b\u5b50 <\/p>\n<p>const ctx = wx.createCanvasContext(&#8216;myCanvas&#8217;)ctx.setStrokeStyle(&#8216;red&#8217;)ctx.strokeRect(10, 10, 150, 75)ctx.draw() <\/p>\n<p><img decoding=\"async\" src=\"https:\/\/img.php.cn\/\/upload\/image\/939\/521\/900\/1488964112354042.png\" style=\"max-width:90%\" class=\"aligncenter\" title=\"\u5fae\u4fe1\u5c0f\u7a0b\u5e8f0.11.122100 \u7248\u672c\u66f4\u65b0\u8be6\u60c5\u4ecb\u7ecd\u63d2\u56fe3\" alt=\"\u5fae\u4fe1\u5c0f\u7a0b\u5e8f0.11.122100 \u7248\u672c\u66f4\u65b0\u8be6\u60c5\u4ecb\u7ecd\u63d2\u56fe3\" \/><br \/>\n<br \/>fillRect <\/p>\n<p>\u5b9a\u4e49 <\/p>\n<p>\u586b\u5145\u4e00\u4e2a\u77e9\u5f62\u3002<br \/>\n<br \/>Tip: \u7528 setFillStyle() \u8bbe\u7f6e\u77e9\u5f62\u7684\u586b\u5145\u8272\uff0c\u5982\u679c\u6ca1\u8bbe\u7f6e\u9ed8\u8ba4\u662f\u9ed1\u8272\u3002 <\/p>\n<p>\u53c2\u6570 <\/p>\n<p>[tr]\u53c2\u6570\u7c7b\u578b\u8bf4\u660e[\/tr] <\/p>\n<table>\n<tbody>\n<tr>\n<td>x<\/td>\n<td>Number<\/td>\n<td>\u77e9\u5f62\u8def\u5f84\u5de6\u4e0a\u89d2\u7684x\u5750\u6807<\/td>\n<\/tr>\n<tr>\n<td>y<\/td>\n<td>Number<\/td>\n<td>\u77e9\u5f62\u8def\u5f84\u5de6\u4e0a\u89d2\u7684y\u5750\u6807<\/td>\n<\/tr>\n<tr>\n<td>width<\/td>\n<td>Number<\/td>\n<td>\u77e9\u5f62\u8def\u5f84\u7684\u5bbd\u5ea6<\/td>\n<\/tr>\n<tr>\n<td>height<\/td>\n<td>Number<\/td>\n<td>\u77e9\u5f62\u8def\u5f84\u7684\u9ad8\u5ea6<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<p>\u4f8b\u5b50 <\/p>\n<p>const ctx = wx.createCanvasContext(&#8216;myCanvas&#8217;)ctx.setFillStyle(&#8216;red&#8217;)ctx.fillRect(10, 10, 150, 75)ctx.draw() <\/p>\n<p><img decoding=\"async\" src=\"https:\/\/img.php.cn\/\/upload\/image\/656\/510\/394\/1488964097771237.png\" style=\"max-width:90%\" class=\"aligncenter\" title=\"\u5fae\u4fe1\u5c0f\u7a0b\u5e8f0.11.122100 \u7248\u672c\u66f4\u65b0\u8be6\u60c5\u4ecb\u7ecd\u63d2\u56fe4\" alt=\"\u5fae\u4fe1\u5c0f\u7a0b\u5e8f0.11.122100 \u7248\u672c\u66f4\u65b0\u8be6\u60c5\u4ecb\u7ecd\u63d2\u56fe4\" \/> <\/p>\n<p>arc <\/p>\n<p>\u5b9a\u4e49 <\/p>\n<p>\u753b\u4e00\u6761\u5f27\u7ebf\u3002<br \/>\n<br \/>Tip: \u521b\u5efa\u4e00\u4e2a\u5706\u53ef\u4ee5\u7528 arc() \u65b9\u6cd5\u6307\u5b9a\u5176\u5b9e\u5f27\u5ea6\u4e3a0\uff0c\u7ec8\u6b62\u5f27\u5ea6\u4e3a 2 * Math.PI\u3002<br \/>\n<br \/>Tip: \u7528 stroke() \u6216\u8005 fill() \u65b9\u6cd5\u6765\u5728 canvas \u4e2d\u753b\u5f27\u7ebf\u3002 <\/p>\n<p>\u53c2\u6570 <\/p>\n<p>[tr]\u53c2\u6570\u7c7b\u578b\u8bf4\u660e[\/tr] <\/p>\n<table>\n<tbody>\n<tr>\n<td>x<\/td>\n<td>Number<\/td>\n<td>\u5706\u7684x\u5750\u6807<\/td>\n<\/tr>\n<tr>\n<td>y<\/td>\n<td>Number<\/td>\n<td>\u5706\u7684y\u5750\u6807<\/td>\n<\/tr>\n<tr>\n<td>r<\/td>\n<td>Number<\/td>\n<td>\u5706\u7684\u534a\u5f84<\/td>\n<\/tr>\n<tr>\n<td>sAngle<\/td>\n<td>Number<\/td>\n<td>\u8d77\u59cb\u5f27\u5ea6\uff0c\u5355\u4f4d\u5f27\u5ea6\uff08\u57283\u70b9\u949f\u65b9\u5411\uff09<\/td>\n<\/tr>\n<tr>\n<td>eAngle<\/td>\n<td>Number<\/td>\n<td>\u7ec8\u6b62\u5f27\u5ea6<\/td>\n<\/tr>\n<tr>\n<td>counterclockwise<\/td>\n<td>Boolean<\/td>\n<td>\u53ef\u9009\u3002\u6307\u5b9a\u5f27\u5ea6\u7684\u65b9\u5411\u662f\u9006\u65f6\u9488\u8fd8\u662f\u987a\u65f6\u9488\u3002\u9ed8\u8ba4\u662ffalse\uff0c\u5373\u987a\u65f6\u9488\u3002<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<p>\u4f8b\u5b50 <\/p>\n<p>const ctx = wx.createCanvasContext(&#8216;myCanvas&#8217;)\/\/ Draw coordinatesctx.arc(100, 75, 50, 0, 2 * Math.PI)ctx.setFillStyle(&#8216;#EEEEEE&#8217;)ctx.fill()ctx.beginPath()ctx.moveTo(40, 75)ctx.lineTo(160, 75)ctx.moveTo(100, 15)ctx.lineTo(100, 135)ctx.setStrokeStyle(&#8216;#AAAAAA&#8217;)ctx.stroke()ctx.setFontSize(12)ctx.setFillStyle(&#8216;black&#8217;)ctx.fillText(&#8216;0&#8217;, 165, 78)ctx.fillText(&#8216;0.5*PI&#8217;, 83, 145)ctx.fillText(&#8216;1*PI&#8217;, 15, 78)ctx.fillText(&#8216;1.5*PI&#8217;, 83, 10)\/\/ Draw pointsctx.beginPath()ctx.arc(100, 75, 2, 0, 2 * Math.PI)ctx.setFillStyle(&#8216;lightgreen&#8217;)ctx.fill()ctx.beginPath()ctx.arc(100, 25, 2, 0, 2 * Math.PI)ctx.setFillStyle(&#8216;blue&#8217;)ctx.fill()ctx.beginPath()ctx.arc(150, 75, 2, 0, 2 * Math.PI)ctx.setFillStyle(&#8216;red&#8217;)ctx.fill()\/\/ Draw arcctx.beginPath()ctx.arc(100, 75, 50, 0, 1.5 * Math.PI)ctx.setStrokeStyle(&#8216;#333333&#8217;)ctx.stroke()ctx.draw()<br \/>\n<br \/>\u9488\u5bf9 arc(100, 75, 50, 0, 1.5 * Math.PI)\u7684\u4e09\u4e2a\u5173\u952e\u5750\u6807\u5982\u4e0b\uff1a<br \/>\n<img decoding=\"async\" src=\"https:\/\/img.php.cn\/\/upload\/image\/352\/893\/518\/1488964083105591.png\" style=\"max-width:90%\" class=\"aligncenter\" title=\"\u5fae\u4fe1\u5c0f\u7a0b\u5e8f0.11.122100 \u7248\u672c\u66f4\u65b0\u8be6\u60c5\u4ecb\u7ecd\u63d2\u56fe5\" alt=\"\u5fae\u4fe1\u5c0f\u7a0b\u5e8f0.11.122100 \u7248\u672c\u66f4\u65b0\u8be6\u60c5\u4ecb\u7ecd\u63d2\u56fe5\" \/> <\/p>\n<ul>\n<li>\n<p>\u7eff\u8272: \u5706\u5fc3 (100, 75)<\/p>\n<\/li>\n<li>\n<p>\u7ea2\u8272: \u8d77\u59cb\u5f27\u5ea6 (0)<\/p>\n<\/li>\n<li>\n<p>\u84dd\u8272: \u7ec8\u6b62\u5f27\u5ea6 (1.5 * Math.PI)<\/p>\n<\/li>\n<\/ul>\n<p>\u5728Canvas\u4e0a\u753b\u56fe <\/p>\n<p>\u6240\u6709\u5728  \u4e2d\u7684\u753b\u56fe\u5fc5\u987b\u7528 JavaScript \u5b8c\u6210\uff1a<br \/>\n<br \/>WXML\uff1a\uff08\u6211\u4eec\u5728\u63a5\u4e0b\u6765\u7684\u4f8b\u5b50\u4e2d\u5982\u65e0\u7279\u6b8a\u58f0\u660e\u90fd\u4f1a\u7528\u8fd9\u4e2a WXML \u4e3a\u6a21\u677f\uff0c\u4e0d\u518d\u91cd\u590d\uff09<br \/>\n<br \/> JS\uff1a\uff08\u6211\u4eec\u5728\u63a5\u4e0b\u6765\u7684\u4f8b\u5b50\u4e2d\u4f1a\u5c06 JS \u653e\u5728 onLoad \u4e2d\uff09<br \/>\n<br \/>const ctx = wx.createCanvasContext(&#8216;myCanvas&#8217;)ctx.setFillStyle(&#8216;red&#8217;)ctx.fillRect(10, 10, 150, 75)ctx.draw() <\/p>\n<p>\u7b2c\u4e00\u6b65\uff1a\u521b\u5efa\u4e00\u4e2a Canvas \u7ed8\u56fe\u4e0a\u4e0b\u6587 <\/p>\n<p>\u9996\u5148\uff0c\u6211\u4eec\u9700\u8981\u521b\u5efa\u4e00\u4e2a Canvas \u7ed8\u56fe\u4e0a\u4e0b\u6587 CanvasContext\u3002<br \/>\n<br \/>CanvasContext \u662f\u5c0f\u7a0b\u5e8f\u5185\u5efa\u7684\u4e00\u4e2a\u5bf9\u8c61\uff0c\u6709\u4e00\u4e9b\u7ed8\u56fe\u7684\u65b9\u6cd5\uff1a<br \/>\n<br \/>const ctx = wx.createCanvasContext(&#8216;myCanvas&#8217;) <\/p>\n<p>\u7b2c\u4e8c\u6b65\uff1a\u4f7f\u7528 Canvas \u7ed8\u56fe\u4e0a\u4e0b\u6587\u8fdb\u884c\u7ed8\u56fe\u63cf\u8ff0 <\/p>\n<p>\u63a5\u7740\uff0c\u6211\u4eec\u6765\u63cf\u8ff0\u8981\u5728 Canvas \u4e2d\u7ed8\u5236\u4ec0\u4e48\u5185\u5bb9\u3002<br \/>\n<br \/>\u8bbe\u7f6e\u7ed8\u56fe\u4e0a\u4e0b\u6587\u7684\u586b\u5145\u8272\u4e3a\u7ea2\u8272\uff1a<br \/>\n<br \/>ctx.setFillStyle(&#8216;red&#8217;)\u7528 fillRect(x, y, width, height) \u65b9\u6cd5\u753b\u4e00\u4e2a\u77e9\u5f62\uff0c\u586b\u5145\u4e3a\u521a\u521a\u8bbe\u7f6e\u7684\u7ea2\u8272\uff1a<br \/>\n<br \/>ctx.fillRect(10, 10, 150, 75) <\/p>\n<p>\u7b2c\u4e09\u6b65\uff1a\u753b\u56fe <\/p>\n<p>\u544a\u8bc9  \u7ec4\u4ef6\u4f60\u8981\u5c06\u521a\u521a\u7684\u63cf\u8ff0\u7ed8\u5236\u4e0a\u53bb\uff1a<br \/>\n<br \/>ctx.draw() <\/p>\n<p> <\/p>\n<p>\u4ee5\u4e0a\u5c31\u662f\u5fae\u4fe1\u5c0f\u7a0b\u5e8f0.11.122100 \u7248\u672c\u66f4\u65b0\u8be6\u60c5\u4ecb\u7ecd\u7684\u8be6\u7ec6\u5185\u5bb9\uff0c\u66f4\u591a\u8bf7\u5173\u6ce8\u7c73\u4e91\u5176\u5b83\u76f8\u5173\u6587\u7ae0\uff01<\/p>\n","protected":false},"excerpt":{"rendered":"<p>0.11.122100 \u66f4\u65b0\u6982\u8ff0 \u65b0\u589e 4 \u4e2a\u65b0 api\uff0c 2\u4e2a\u65b0\u7ec4\u4ef6 \u62d3\u5c55\u4e86 10 \u4e2a\u7ec4\u4ef6\u5c5e\u6027\uff0c\u65b0\u589e 6 \u4e2a\u7ec4\u4ef6\u4e8b\u4ef6 \u4fee\u590d\u6570\u5341\u4e2a API \u4ee5\u53ca\u7ec4\u4ef6 bug\uff0c\u4f18\u5316\u90e8\u5206\u4ea4\u4e92\u4f53\u9a8c \u5f00\u53d1\u8005\u5de5\u5177\u589e\u52a0\u65b0 API \u53ca\u7ec4\u4ef6\u7684\u8c03\u8bd5\u652f\u6301 \u5f00\u53d1\u8005\u5de5\u5177\u589e\u52a0\u5fae\u4fe1\u652f\u4ed8\u7684\u8c03\u8bd5\u652f\u6301 \u8be6\u7ec6\u66f4\u65b0\u65e5\u5fd7\u5982\u4e0b\uff1a \u57fa\u7840\u5e93\u66f4\u65b0 A \u65b0\u589e API wx.switchTab \u8be6\u60c5 A \u65b0\u589e API wx.scanCode A \u65b0\u589e API wx.createMapContext A \u65b0\u589e API wx.createCanvasContext A \u65b0\u589e API wx.showToast \u8c03\u7528\u53c2\u6570 mask A \u65b0\u589e \u9875\u9762\u65b9\u6cd5 Page.onShareAppMessage \u7528\u4e8e\u81ea\u5b9a\u4e49\u5206\u4eab\u5185\u5bb9 A \u65b0\u589e \u6846\u67b6\u65b9\u6cd5 App.onError A [&hellip;]<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"closed","ping_status":"","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[19],"tags":[],"class_list":["post-28782","post","type-post","status-publish","format-standard","hentry","category-19"],"_links":{"self":[{"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/posts\/28782","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/comments?post=28782"}],"version-history":[{"count":0,"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/posts\/28782\/revisions"}],"wp:attachment":[{"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/media?parent=28782"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/categories?post=28782"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/tags?post=28782"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}