{"id":33141,"date":"2024-11-25T09:18:40","date_gmt":"2024-11-25T01:18:40","guid":{"rendered":"https:\/\/fwq.ai\/blog\/33141\/"},"modified":"2024-11-25T09:18:40","modified_gmt":"2024-11-25T01:18:40","slug":"%e5%be%ae%e4%bf%a1%e5%b0%8f%e7%a8%8b%e5%ba%8f%e6%80%8e%e4%b9%88%e5%ae%9e%e7%8e%b0%e8%b4%ad%e7%89%a9%e8%bd%a6%e5%8a%9f%e8%83%bd%ef%bc%9f%ef%bc%88%e6%96%b9%e6%b3%95%e4%bb%8b%e7%bb%8d%ef%bc%89","status":"publish","type":"post","link":"https:\/\/fwq.ai\/blog\/33141\/","title":{"rendered":"\u5fae\u4fe1\u5c0f\u7a0b\u5e8f\u600e\u4e48\u5b9e\u73b0\u8d2d\u7269\u8f66\u529f\u80fd\uff1f\uff08\u65b9\u6cd5\u4ecb\u7ecd\uff09"},"content":{"rendered":"<p>\u5fae\u4fe1\u5c0f\u7a0b\u5e8f\u600e\u4e48\u5b9e\u73b0\u8d2d\u7269\u8f66\u529f\u80fd\uff1f\u4e0b\u9762\u672c\u7bc7\u6587\u7ae0\u7ed9\u5927\u5bb6\u4ecb\u7ecd\u4e00\u4e0b\u5fae\u4fe1\u5c0f\u7a0b\u5e8f\u5b9e\u73b0\u8d2d\u7269\u8f66\u529f\u80fd\u7684\u65b9\u6cd5\u3002\u6709\u4e00\u5b9a\u7684\u53c2\u8003\u4ef7\u503c\uff0c\u6709\u9700\u8981\u7684\u670b\u53cb\u53ef\u4ee5\u53c2\u8003\u4e00\u4e0b\uff0c\u5e0c\u671b\u5bf9\u5927\u5bb6\u6709\u6240\u5e2e\u52a9\u3002<\/p>\n<p><img decoding=\"async\" src=\"https:\/\/img.php.cn\/upload\/article\/000\/000\/024\/5eab7e8664e21614.jpg\" class=\"aligncenter\" title=\"\u5fae\u4fe1\u5c0f\u7a0b\u5e8f\u600e\u4e48\u5b9e\u73b0\u8d2d\u7269\u8f66\u529f\u80fd\uff1f\uff08\u65b9\u6cd5\u4ecb\u7ecd\uff09\u63d2\u56fe\" alt=\"\u5fae\u4fe1\u5c0f\u7a0b\u5e8f\u600e\u4e48\u5b9e\u73b0\u8d2d\u7269\u8f66\u529f\u80fd\uff1f\uff08\u65b9\u6cd5\u4ecb\u7ecd\uff09\u63d2\u56fe\" 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\u767b\u5f55\u540e\u590d\u5236 <\/p>\n<p>\u8d2d\u7269\u8f66\u5217\u8868\u6570\u636e\u6211\u4eec\u4e00\u822c\u662f\u901a\u8fc7\u8bf7\u6c42\u670d\u52a1\u5668\u62ff\u5230\u7684\u6570\u636e\uff0c\u6240\u4ee5\u6211\u4eec\u653e\u5728\u751f\u547d\u5468\u671f\u51fd\u6570\u91cc\u7ed9carts\u8d4b\u503c\u3002\u60f3\u5230\u6bcf\u6b21\u8fdb\u5230\u8d2d\u7269\u8f66\u90fd\u8981\u83b7\u53d6\u8d2d\u7269\u8f66\u7684\u6700\u65b0\u72b6\u6001\uff0c\u800conLoad\u548conReady\u53ea\u5728\u521d\u59cb\u5316\u7684\u65f6\u5019\u6267\u884c\u4e00\u6b21\uff0c\u6240\u4ee5\u6211\u9700\u8981\u628a\u8bf7\u6c42\u653e\u5728onShow\u51fd\u6570\u91cc\u3002<\/p>\n<p><strong>\u8ba1\u7b97\u603b\u4ef7<\/strong><\/p>\n<blockquote><p>\n  \u603b\u4ef7&nbsp;=&nbsp;\u9009\u4e2d\u7684\u5546\u54c11\u7684 \u4ef7\u683c&nbsp;*&nbsp;\u6570\u91cf&nbsp;+&nbsp;\u9009\u4e2d\u7684\u5546\u54c12\u7684\u4ef7\u683c&nbsp;*&nbsp;\u6570\u91cf&nbsp;+&nbsp;\u2026\n<\/p><\/blockquote>\n<p>\u6839\u636e\u516c\u5f0f\uff0c\u53ef\u4ee5\u5f97\u5230<\/p>\n<pre>getTotalPrice()&nbsp;{\n&nbsp;&nbsp;&nbsp;&nbsp;let&nbsp;carts&nbsp;=this.data.carts;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;\/\/&nbsp;\u83b7\u53d6\u8d2d\u7269\u8f66\u5217\u8868\n&nbsp;&nbsp;&nbsp;&nbsp;let&nbsp;total&nbsp;=&nbsp;0;\n&nbsp;&nbsp;&nbsp;&nbsp;for(let&nbsp;i&nbsp;=&nbsp;0;i&lt;carts.length&gt;\n&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;if(carts[i].selected){&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;\/\/&nbsp;\u5224\u65ad\u9009\u4e2d\u624d\u4f1a\u8ba1\u7b97\u4ef7\u683c\n&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;total&nbsp;+=carts[i].num&nbsp;*&nbsp;carts[i].price;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;\/\/&nbsp;\u6240\u6709\u4ef7\u683c\u52a0\u8d77\u6765\n&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;}\n&nbsp;&nbsp;&nbsp;&nbsp;}\n&nbsp;&nbsp;&nbsp;&nbsp;this.setData({&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;\/\/&nbsp;\u6700\u540e\u8d4b\u503c\u5230data\u4e2d\u6e32\u67d3\u5230\u9875\u9762\n&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;carts:&nbsp;carts,\n&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;totalPrice:total.toFixed(2)\n&nbsp;&nbsp;&nbsp;&nbsp;});\n}&lt;\/carts.length&gt;<\/pre>\n<p> \u767b\u5f55\u540e\u590d\u5236 <\/p>\n<p>\u9875\u9762\u4e2d\u7684\u5176\u4ed6\u64cd\u4f5c\u4f1a\u5bfc\u81f4\u603b\u4ef7\u683c\u53d8\u5316\u7684\u90fd\u9700\u8981\u8c03\u7528\u8be5\u65b9\u6cd5\u3002<\/p>\n<p><strong>\u9009\u62e9\u4e8b\u4ef6<\/strong><\/p>\n<p>\u70b9\u51fb\u65f6\u9009\u4e2d\uff0c\u518d\u70b9\u51fb\u53c8\u53d8\u6210\u6ca1\u9009\u4e2d\u72b6\u6001\uff0c\u5176\u5b9e\u5c31\u662f\u6539\u53d8&nbsp;selected&nbsp;\u5b57\u6bb5\u3002\u901a\u8fc7&nbsp;data-index=\u201d{{index}}\u201d \u628a\u5f53\u524d\u5546\u54c1\u5728\u5217\u8868\u6570\u7ec4\u4e2d\u7684\u4e0b\u6807\u4f20\u7ed9\u4e8b\u4ef6\u3002<\/p>\n<pre>selectList(e)&nbsp;{\n&nbsp;&nbsp;&nbsp;&nbsp;const&nbsp;index&nbsp;=e.currentTarget.dataset.index;&nbsp;&nbsp;&nbsp;&nbsp;\/\/&nbsp;\u83b7\u53d6data-&nbsp;\u4f20\u8fdb\u6765\u7684index\n&nbsp;&nbsp;&nbsp;&nbsp;let&nbsp;carts&nbsp;=this.data.carts;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;\/\/&nbsp;\u83b7\u53d6\u8d2d\u7269\u8f66\u5217\u8868\n&nbsp;&nbsp;&nbsp;&nbsp;const&nbsp;selected&nbsp;=carts[index].selected;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;\/\/&nbsp;\u83b7\u53d6\u5f53\u524d\u5546\u54c1\u7684\u9009\u4e2d\u72b6\u6001\n&nbsp;&nbsp;&nbsp;&nbsp;carts[index].selected=&nbsp;!selected;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;\/\/&nbsp;\u6539\u53d8\u72b6\u6001\n&nbsp;&nbsp;&nbsp;&nbsp;this.setData({\n&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;carts:&nbsp;carts\n&nbsp;&nbsp;&nbsp;&nbsp;});\n&nbsp;&nbsp;&nbsp;this.getTotalPrice();&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;\/\/&nbsp;\u91cd\u65b0\u83b7\u53d6\u603b\u4ef7\n}<\/pre>\n<p> \u767b\u5f55\u540e\u590d\u5236 <\/p>\n<p><strong>\u5168\u9009\u4e8b\u4ef6<\/strong><\/p>\n<p>\u5168\u9009\u5c31\u662f\u6839\u636e\u5168\u9009\u72b6\u6001&nbsp;selectAllStatus&nbsp;\u53bb\u6539\u53d8\u6bcf\u4e2a\u5546\u54c1\u7684&nbsp;selected<\/p>\n<pre>selectAll(e)&nbsp;{\n&nbsp;&nbsp;&nbsp;&nbsp;let&nbsp;selectAllStatus&nbsp;=this.data.selectAllStatus;&nbsp;&nbsp;&nbsp;&nbsp;\/\/&nbsp;\u662f\u5426\u5168\u9009\u72b6\u6001\n&nbsp;&nbsp;&nbsp;&nbsp;selectAllStatus&nbsp;=!selectAllStatus;\n&nbsp;&nbsp;&nbsp;&nbsp;let&nbsp;carts&nbsp;=this.data.carts;\n&nbsp;\n&nbsp;&nbsp;&nbsp;&nbsp;for&nbsp;(let&nbsp;i&nbsp;=&nbsp;0;&nbsp;i&lt;p&gt;&lt;strong&gt;\u589e\u51cf\u6570\u91cf&lt;\/strong&gt;&lt;\/p&gt;&lt;p&gt;\u70b9\u51fb+\u53f7\uff0cnum\u52a01\uff0c\u70b9\u51fb-\u53f7\uff0c\u5982\u679cnum &amp;gt; 1\uff0c\u5219\u51cf1&lt;\/p&gt;&lt;pre class=\"brush:js;toolbar:false\"&gt;\/\/&nbsp;\u589e\u52a0\u6570\u91cf\naddCount(e)&nbsp;{\n&nbsp;&nbsp;&nbsp;&nbsp;const&nbsp;index&nbsp;=e.currentTarget.dataset.index;\n&nbsp;&nbsp;&nbsp;&nbsp;let&nbsp;carts&nbsp;=this.data.carts;\n&nbsp;&nbsp;&nbsp;&nbsp;let&nbsp;num&nbsp;=carts[index].num;\n&nbsp;&nbsp;&nbsp;&nbsp;num&nbsp;=&nbsp;num&nbsp;+&nbsp;1;\n&nbsp;&nbsp;&nbsp;&nbsp;carts[index].num&nbsp;=num;\n&nbsp;&nbsp;&nbsp;&nbsp;this.setData({\n&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;carts:&nbsp;carts\n&nbsp;&nbsp;&nbsp;&nbsp;});\n&nbsp;&nbsp;&nbsp;&nbsp;this.getTotalPrice();\n},\n\/\/&nbsp;\u51cf\u5c11\u6570\u91cf\nminusCount(e)&nbsp;{\n&nbsp;&nbsp;&nbsp;&nbsp;const&nbsp;index&nbsp;=e.currentTarget.dataset.index;\n&nbsp;&nbsp;&nbsp;&nbsp;let&nbsp;carts&nbsp;=this.data.carts;\n&nbsp;&nbsp;&nbsp;&nbsp;let&nbsp;num&nbsp;=carts[index].num;\n&nbsp;&nbsp;&nbsp;&nbsp;if(num&nbsp;&lt;p&gt;&lt;strong&gt;\u5220\u9664\u5546\u54c1&lt;\/strong&gt;&lt;\/p&gt;&lt;p&gt;\u70b9\u51fb\u5220\u9664\u6309\u94ae\u5219\u4ece\u8d2d\u7269\u8f66\u5217\u8868\u4e2d\u5220\u9664\u5f53\u524d\u5143\u7d20\uff0c\u5220\u9664\u4e4b\u540e\u5982\u679c\u8d2d\u7269\u8f66\u4e3a\u7a7a\uff0c\u6539\u53d8\u8d2d\u7269\u8f66\u4e3a\u7a7a\u6807\u8bc6hasList\u4e3afalse&lt;\/p&gt;&lt;pre class=\"brush:js;toolbar:false\"&gt;deleteList(e)&nbsp;{\n&nbsp;&nbsp;&nbsp;&nbsp;const&nbsp;index&nbsp;=e.currentTarget.dataset.index;\n&nbsp;&nbsp;&nbsp;&nbsp;let&nbsp;carts&nbsp;=this.data.carts;\n&nbsp;&nbsp;&nbsp;carts.splice(index,1);&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;\/\/&nbsp;\u5220\u9664\u8d2d\u7269\u8f66\u5217\u8868\u91cc\u8fd9\u4e2a\u5546\u54c1\n&nbsp;&nbsp;&nbsp;&nbsp;this.setData({\n&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;carts:&nbsp;carts\n&nbsp;&nbsp;&nbsp;&nbsp;});\n&nbsp;&nbsp;&nbsp;if(!carts.length){&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;\/\/&nbsp;\u5982\u679c\u8d2d\u7269\u8f66\u4e3a\u7a7a\n&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;this.setData({\n&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;hasList:false&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;\/\/&nbsp;\u4fee\u6539\u6807\u8bc6\u4e3afalse\uff0c\u663e\u793a\u8d2d\u7269\u8f66\u4e3a\u7a7a\u9875\u9762\n&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;});\n&nbsp;&nbsp;&nbsp;&nbsp;}else{&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;\/\/&nbsp;\u5982\u679c\u4e0d\u4e3a\u7a7a\n&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;this.getTotalPrice();&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;\/\/\u91cd\u65b0\u8ba1\u7b97\u603b\u4ef7\u683c\n&nbsp;&nbsp;&nbsp;&nbsp;}&nbsp;&nbsp;\n}<\/pre>\n<p> \u767b\u5f55\u540e\u590d\u5236 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&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;this.setData({ &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;hasList:true,&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;\/\/&nbsp;\u65e2\u7136\u6709\u6570\u636e\u4e86\uff0c\u90a3\u8bbe\u4e3atrue\u5427 &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;carts:[ &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;{id:1,title:&#8217;\u65b0\u9c9c\u82b9\u83dc&nbsp;\u534a\u65a4&#8217;,image:&#8217;\/image\/s5.png&#8217;,num:4,price:0.01,selected:true}, &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;{id:2,title:&#8217;\u7d20\u7c73&nbsp;500g&#8217;,image:&#8217;\/image\/s6.png&#8217;,num:1,price:0.03,selected:true} &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;] &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;}); &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;}, }) \u767b\u5f55\u540e\u590d\u5236 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&nbsp;&nbsp;&nbsp;&nbsp;let&nbsp;carts&nbsp;=this.data.carts;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;\/\/&nbsp;\u83b7\u53d6\u8d2d\u7269\u8f66\u5217\u8868 &nbsp;&nbsp;&nbsp;&nbsp;let&nbsp;total&nbsp;=&nbsp;0; &nbsp;&nbsp;&nbsp;&nbsp;for(let&nbsp;i&nbsp;=&nbsp;0;i&lt;carts.length&gt; &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;if(carts[i].selected){&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;\/\/&nbsp;\u5224\u65ad\u9009\u4e2d\u624d\u4f1a\u8ba1\u7b97\u4ef7\u683c &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;total&nbsp;+=carts[i].num&nbsp;*&nbsp;carts[i].price;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;\/\/&nbsp;\u6240\u6709\u4ef7\u683c\u52a0\u8d77\u6765 &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;} &nbsp;&nbsp;&nbsp;&nbsp;} &nbsp;&nbsp;&nbsp;&nbsp;this.setData({&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;\/\/&nbsp;\u6700\u540e\u8d4b\u503c\u5230data\u4e2d\u6e32\u67d3\u5230\u9875\u9762 &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;carts:&nbsp;carts, &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;totalPrice:total.toFixed(2) &nbsp;&nbsp;&nbsp;&nbsp;}); }&lt;\/carts.length&gt; \u767b\u5f55\u540e\u590d\u5236 \u9875\u9762\u4e2d\u7684\u5176\u4ed6\u64cd\u4f5c\u4f1a\u5bfc\u81f4\u603b\u4ef7\u683c\u53d8\u5316\u7684\u90fd\u9700\u8981\u8c03\u7528\u8be5\u65b9\u6cd5\u3002 \u9009\u62e9\u4e8b\u4ef6 \u70b9\u51fb\u65f6\u9009\u4e2d\uff0c\u518d\u70b9\u51fb\u53c8\u53d8\u6210\u6ca1\u9009\u4e2d\u72b6\u6001\uff0c\u5176\u5b9e\u5c31\u662f\u6539\u53d8&nbsp;selected&nbsp;\u5b57\u6bb5\u3002\u901a\u8fc7&nbsp;data-index=\u201d{{index}}\u201d 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