{"id":3265,"date":"2021-01-13T13:55:43","date_gmt":"2021-01-13T05:55:43","guid":{"rendered":"http:\/\/www.salesforcecrm.cn\/?p=3265"},"modified":"2021-01-13T13:55:43","modified_gmt":"2021-01-13T05:55:43","slug":"%e9%80%82%e7%94%a8%e4%ba%8evisualforce%e5%bc%80%e5%8f%91%e4%ba%ba%e5%91%98%e7%9a%84lightning-web%e7%bb%84%e4%bb%b6-%e4%ba%86%e8%a7%a3%e7%bc%96%e7%a0%81%e6%a6%82%e5%bf%b5%e5%a6%82%e4%bd%95%e5%ba%94","status":"publish","type":"post","link":"http:\/\/www.ponybai.com\/?p=3265","title":{"rendered":"\u9002\u7528\u4e8eVisualforce\u5f00\u53d1\u4eba\u5458\u7684Lightning Web\u7ec4\u4ef6 &#8211; \u4e86\u89e3\u7f16\u7801\u6982\u5ff5\u5982\u4f55\u5e94\u7528\u4e8eLightning Web Components"},"content":{"rendered":"<h2 id=\"learning-objectives-nbsp\"><span>\u5b66\u4e60\u76ee\u6807\u00a0<\/span><\/h2>\n<p><span>\u5b8c\u6210\u672c\u5355\u5143\u540e\uff0c\u60a8\u5c06\u80fd\u591f\uff1a<\/span><\/p>\n<ul>\n<li><span>\u89e3\u91caVisualforce\u548cLightning Web\u7ec4\u4ef6\u4e4b\u95f4\u7684\u4f53\u7cfb\u7ed3\u6784\u5dee\u5f02\u3002<\/span><\/li>\n<li><span>\u5c06Visualforce\u7f16\u7801\u6982\u5ff5\u6620\u5c04\u5230Lightning Web Components\u3002<\/span><\/li>\n<\/ul>\n<p><span>\u5728\u672c\u5355\u5143\u4e2d\uff0c\u60a8\u5c06\u5b66\u4e60Visualforce\u77e5\u8bc6\u5982\u4f55\u5e94\u7528\u4e8eLightning Web Components\u4f53\u7cfb\u7ed3\u6784\u548c\u7f16\u7801\u6982\u5ff5\u3002<\/span><\/p>\n<h2 id=\"lightning-web-components-architecture\"><span>\u95ea\u7535Web\u7ec4\u4ef6\u67b6\u6784<\/span><\/h2>\n<p><span>Visualforce\u662f\u670d\u52a1\u5668\u7aef\u7684\u6a21\u677f\u8bed\u8a00\u3002\u5f53\u5ba2\u6237\u7aef\uff08\u6d4f\u89c8\u5668\uff09\u8bf7\u6c42Visualforce\u9875\u9762\u65f6\uff0c\u670d\u52a1\u5668\u5c06\u5448\u73b0\u8be5\u9875\u9762\uff0c\u5e76\u5c06\u5176\u4ee5HTML\u683c\u5f0f\u53d1\u9001\u7ed9\u5ba2\u6237\u7aef\u3002\u5f53\u7528\u6237\u754c\u9762\u9700\u8981\u66f4\u6539\u65f6\uff08\u4f8b\u5982\uff0c\u54cd\u5e94\u94fe\u63a5\u5355\u51fb\u9875\u9762\uff09\uff0c\u5ba2\u6237\u7aef\u5c06\u5411\u670d\u52a1\u5668\u8bf7\u6c42\u4e00\u4e2a\u65b0\u5448\u73b0\u7684\u9875\u9762\u3002\u670d\u52a1\u5668\u5904\u7406UI\u66f4\u6539\u5e76\u5c06\u6574\u4e2a\u9875\u9762\u53d1\u9001\u56de\u5ba2\u6237\u7aef\u3002<\/span><\/p>\n<p><span>\u5728Lightning Web\u7ec4\u4ef6\u4e2d\uff0c\u5ba2\u6237\u7aef\u627f\u62c5\u4e86\u5927\u90e8\u5206\u7e41\u91cd\u7684\u5de5\u4f5c\u3002\u8981\u6e32\u67d3Lightning Web\u7ec4\u4ef6\uff0c\u5b83\u5c06\u5411\u670d\u52a1\u5668\u8bf7\u6c42\u7ec4\u4ef6\u6587\u4ef6\uff0c\u5904\u7406\u8fd9\u4e9b\u6587\u4ef6\u4ee5\u751f\u6210\u9002\u5f53\u7684\u6807\u8bb0\uff0c\u7136\u540e\u6e32\u67d3\u7ec4\u4ef6UI\u3002\u56e0\u4e3a\u5ba2\u6237\u7aef\u53ef\u4ee5\u5904\u7406\u903b\u8f91\uff0c\u6240\u4ee5\u6709\u65f6\u5b83\u53ef\u4ee5\u6267\u884cUI\u66f4\u6539\uff0c\u800c\u65e0\u9700\u5b8c\u5168\u56de\u8c03\u670d\u52a1\u5668\u3002\u5b83\u4ec5\u5728\u9700\u8981\u65f6\uff08\u4f8b\u5982\uff0c\u7ec4\u4ef6\u9700\u8981\u65b0\u6570\u636e\u65f6\uff09\u624d\u8c03\u7528\u670d\u52a1\u5668\u3002\u5373\u4f7f\u8fd9\u6837\uff0c\u5ba2\u6237\u7aef\u4ecd\u9700\u8981\u6700\u5c11\u6570\u91cf\u7684\u6570\u636e\u3002<\/span><\/p>\n<table class=\"featureTable sort_table\">\n<thead class=\"thead sorted\">\n<tr>\n<th><span>\u4f20\u7edf\u7684Visualforce\u8bf7\u6c42<\/span><\/th>\n<th><span>\u95ea\u7535Web\u7ec4\u4ef6\u8bf7\u6c42<\/span><\/th>\n<\/tr>\n<\/thead>\n<tbody class=\"tbody\">\n<tr>\n<td>\n<img fetchpriority=\"high\" decoding=\"async\" class=\"image image-block image-center\" src=\"https:\/\/res.cloudinary.com\/hy4kyit2a\/f_auto,fl_lossy,q_70\/learn\/modules\/lwc-for-visualforce-developers\/learn-how-coding-concepts-apply-to-lwc\/images\/e172767ecaafd65ed60ea137f699076c_52-b-663-a-7-409-e-48-bc-907-e-27-ebf-47-d-505-a.png\" alt=\"\u4f20\u7edf\u7684Visualforce\u8bf7\u6c42\u56fe\" width=\"298\" height=\"212\" \/><\/td>\n<td><img decoding=\"async\" class=\"image image-block image-center\" src=\"https:\/\/res.cloudinary.com\/hy4kyit2a\/f_auto,fl_lossy,q_70\/learn\/modules\/lwc-for-visualforce-developers\/learn-how-coding-concepts-apply-to-lwc\/images\/c69f05c292fb68b21b109e176a4a3fbb_8-c-7-c-32-f-7-63-cf-4-f-02-8459-22400-cedd-6-a-9.png\" alt=\"Lightning Web\u7ec4\u4ef6\u8bf7\u6c42\u56fe\" width=\"298\" height=\"268\" \/><\/td>\n<\/tr>\n<tr>\n<td>\n<ol>\n<li><span>\u7528\u6237\u8bf7\u6c42\u9875\u9762\u3002<\/span><\/li>\n<li><span>\u670d\u52a1\u5668\u6267\u884c\u9875\u9762\u7684\u57fa\u7840\u4ee3\u7801\uff0c\u5e76\u5c06\u7ed3\u679cHTML\u53d1\u9001\u5230\u6d4f\u89c8\u5668\u3002<\/span><\/li>\n<li><span>\u6d4f\u89c8\u5668\u663e\u793a\u9875\u9762\u3002<\/span><\/li>\n<li><span>\u5f53\u7528\u6237\u518d\u6b21\u4e0e\u9875\u9762\u4ea4\u4e92\u65f6\uff0c\u8be5\u5faa\u73af\u4ece\u7b2c\u4e00\u6b65\u5f00\u59cb\u91cd\u590d\u3002<\/span><\/li>\n<\/ol>\n<\/td>\n<td>\n<ol>\n<li><span>\u7528\u6237\u8bf7\u6c42\u7ec4\u4ef6\u3002<\/span><\/li>\n<li><span>\u7ec4\u4ef6\u5b9a\u4e49\u4f5c\u4e3a\u5df2\u7f16\u8bd1\u7684JavaScript\u6587\u4ef6\u8fd4\u56de\u5230\u5ba2\u6237\u7aef\u3002<\/span><\/li>\n<li><span>JavaScript\u5e94\u7528\u7a0b\u5e8f\u751f\u6210UI\u3002<\/span><\/li>\n<li><span>\u5f53\u7528\u6237\u518d\u6b21\u4e0e\u9875\u9762\u4ea4\u4e92\u65f6\uff0cJavaScript\u4f1a\u4fee\u6539\u5ba2\u6237\u7aef\u4e0a\u7684UI\u3002<\/span><\/li>\n<\/ol>\n<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<p><span>JavaScript\u5728Lightning Web\u7ec4\u4ef6\u4e2d\u8d77\u7740\u91cd\u8981\u4f5c\u7528\u3002\u6bcf\u4e2a\u7ec4\u4ef6\u90fd\u6709\u4e00\u4e2aJavaScript\u6587\u4ef6\uff0c\u53ef\u5728\u9700\u8981\u65f6\u91cd\u65b0\u751f\u6210UI\u3002\u7ec4\u4ef6\u8fd8\u53ef\u4ee5\u5728\u9700\u8981\u65f6\u4f7f\u7528JavaScript\u8c03\u7528\u670d\u52a1\u5668\u4ee5\u68c0\u7d22\u6216\u4fee\u6539Salesforce\u6570\u636e\u3002\u6211\u4eec\u5c06\u5728\u672c\u6a21\u5757\u7684\u540e\u9762\u90e8\u5206\u4ecb\u7ecd\u6570\u636e\u8bbf\u95ee\u3002<\/span><\/p>\n<h2 id=\"lightning-web-components-coding-concepts\"><span>\u95ea\u7535Web\u7ec4\u4ef6\u7f16\u7801\u6982\u5ff5<\/span><\/h2>\n<p><span>Visualforce\u548cLightning Web\u7ec4\u4ef6\u6709\u5f88\u5927\u7684\u4e0d\u540c\uff0c\u4f46\u662f\u6709\u4e00\u4e9bVisualforce\u6982\u5ff5\u6709\u52a9\u4e8e\u7406\u89e3JavaScript\u548cHTML\u5728Lightning Web\u7ec4\u4ef6\u4e2d\u7684\u4ea4\u4e92\u65b9\u5f0f\u3002<\/span><\/p>\n<h2 id=\"tracking-state-with-properties\"><span>\u4f7f\u7528\u5c5e\u6027\u8ddf\u8e2a\u72b6\u6001<\/span><\/h2>\n<p><span>\u5728Visualforce\u4e2d\uff0c\u5c5e\u6027\u5728Apex\u63a7\u5236\u5668\uff08Apex\u7c7b\u6587\u4ef6\uff09\u4e2d\u5b9a\u4e49\uff0c\u5e76\u5728\u9875\u9762\u6807\u8bb0\uff08Visualforce\u9875\u9762\uff09\u4e2d\u5f15\u7528\u3002\u5728Lightning Web\u7ec4\u4ef6\u4e2d\uff0c\u5c5e\u6027\u5728\u7ec4\u4ef6\u7684JavaScript\u6587\u4ef6\u4e2d\u5b9a\u4e49\uff0c\u5e76\u5728\u9875\u9762\u6807\u8bb0\uff08\u7ec4\u4ef6\u7684HTML\u6587\u4ef6\uff09\u4e2d\u5f15\u7528\u3002\u5c5e\u6027\u8ddf\u8e2aVisualforce\u9875\u9762\u548cLightning Web\u7ec4\u4ef6\u7684\u72b6\u6001\u3002\u8fd9\u662f\u8bed\u6cd5\u7684\u57fa\u672c\u793a\u4f8b\u3002<\/span><\/p>\n<p><strong><span>hello.html<\/span><\/strong><\/p>\n<div>\n<div class=\"code-toolbar\">\n<pre class=\"line-numbers language-java\"><code class=\"language-java\"><span class=\"token generics\"><span class=\"token punctuation\">&lt;<\/span>template<span class=\"token punctuation\">&gt;<\/span><\/span>\n    <span class=\"token punctuation\">{<\/span>greeting<span class=\"token punctuation\">}<\/span>\n<span class=\"token operator\">&lt;<\/span><span class=\"token operator\">\/<\/span>template<span class=\"token operator\">&gt;<\/span><\/code><\/pre>\n<div class=\"toolbar\">\n<div class=\"toolbar-item\"><\/div>\n<\/div>\n<\/div>\n<\/div>\n<p><strong><span>hello.js<\/span><\/strong><\/p>\n<div>\n<div class=\"code-toolbar\">\n<pre class=\"line-numbers language-java\"><code class=\"language-java\"><span class=\"token keyword\">import<\/span> <span class=\"token punctuation\">{<\/span> <span class=\"token class-name\">LightningElement<\/span> <span class=\"token punctuation\">}<\/span> from <span class=\"token string\">'lwc'<\/span><span class=\"token punctuation\">;<\/span>\nexport <span class=\"token keyword\">default<\/span> <span class=\"token keyword\">class<\/span> <span class=\"token class-name\">Hello<\/span> <span class=\"token keyword\">extends<\/span> <span class=\"token class-name\">LightningElement<\/span> <span class=\"token punctuation\">{<\/span>\n    greeting <span class=\"token operator\">=<\/span> <span class=\"token string\">'Hello World'<\/span><span class=\"token punctuation\">;<\/span>\n<span class=\"token punctuation\">}<\/span><\/code><\/pre>\n<div class=\"toolbar\">\n<div class=\"toolbar-item\"><\/div>\n<\/div>\n<\/div>\n<\/div>\n<p><code>greeting<\/code><span>\u53ef\u4ee5\u4eceJavaScript\u8bfb\u53d6\u503c\uff0c\u4f46\u4e5f\u53ef\u4ee5\u4f8b\u5982\u54cd\u5e94\u7528\u6237\u64cd\u4f5c\u6765\u5199\u5165\u3002\u5f53\u6807\u8bb0\u4e2d\u5f15\u7528\u7684\u5c5e\u6027\u7684\u503c\u66f4\u6539\u65f6\uff0cLightning Web Components\u5f15\u64ce\u5c06\u91cd\u65b0\u6e32\u67d3\u8be5\u7ec4\u4ef6\u3002\u7528\u6237\u64cd\u4f5c\u548c\u6240\u5bfc\u81f4\u7684\u91cd\u65b0\u5448\u73b0\u5b8c\u5168\u53d1\u751f\u5728\u5ba2\u6237\u7aef\u4e0a\u3002\u4e0d\u9700\u8981\u670d\u52a1\u5668\u8bf7\u6c42\u3002<\/span><\/p>\n<h2 id=\"tracking-state-with-getters-and-setters\"><span>\u4f7f\u7528Getter\u548cSetter\u8ddf\u8e2a\u72b6\u6001<\/span><\/h2>\n<p><span>\u60a8\u5728Visualforce\u4e2d\u77e5\u9053\u7684getter\u548csetter\u4e5f\u5b58\u5728\u4e8eLightning Web\u7ec4\u4ef6\u4e2d\u3002\u60a8\u53ef\u4ee5\u5728JavaScript\u6587\u4ef6\u4e2d\u5b9a\u4e49\u5b83\u4eec\u3002\u8bfb\u53d6\u5c5e\u6027\u65f6\uff0cgetter\u5c06\u6267\u884c\u903b\u8f91\u3002\u8bbe\u7f6e\u5668\u5728\u5199\u5165\u5c5e\u6027\u65f6\u6267\u884c\u903b\u8f91\u3002\u8fd9\u662f\u6269\u5c55\u5c5e\u6027\u529f\u80fd\u7684\u4fbf\u6377\u65b9\u6cd5\u3002\u00a0<\/span><\/p>\n<p><span>\u8981\u5b9a\u4e49\u5438\u6c14\u5242\uff0c\u8bf7\u521b\u5efa\u4e00\u4e2a\u5305\u542b\u903b\u8f91\u5e76\u5728\u5176\u524d\u9762\u52a0\u4e0a<\/span><code>get<\/code><span>\u5173\u952e\u5b57\u7684\u65b9\u6cd5\u3002\u8981\u5b9a\u4e49\u8bbe\u7f6e\u5668\uff0c\u8bf7\u4f7f\u7528\u8fdb\u884c\u76f8\u540c\u7684\u64cd\u4f5c<\/span><code>set<\/code><span>\u3002\u5b9a\u4e49\u8bbe\u7f6e\u5668\u662f\u53ef\u9009\u7684\u3002<\/span><\/p>\n<p><span>\u5728\u6b64\u793a\u4f8b\u4e2d\uff0c\u6211\u4eec<\/span><code>itemName<\/code><span>\u4f7f\u7528getter\u548csetter\u5b9a\u4e49\u5c5e\u6027\u3002\u6bcf\u6b21<\/span><code>itemName<\/code><span>\u8bbe\u7f6e\u5c5e\u6027\u65f6\uff0c\u8bbe\u7f6e\u5668\u90fd\u4f1a\u5c06\u503c\u8f6c\u6362\u4e3a\u5927\u5199\u3002<\/span><code>uppercaseItemName<\/code><span>\u66f4\u6539\u503c\u65f6\uff0cLightning Web Components\u5f15\u64ce\u5c06\u4e3a\u8ba1\u7b97\u65b0\u503c<\/span><code>itemName<\/code><span>\uff0c\u7136\u540e\u91cd\u65b0\u5448\u73b0\u8be5\u7ec4\u4ef6\u3002<\/span><\/p>\n<p><strong><span>todoItem.html<\/span><\/strong><\/p>\n<div>\n<div class=\"code-toolbar\">\n<pre class=\"line-numbers language-java\"><code class=\"language-java\"><span class=\"token generics\"><span class=\"token punctuation\">&lt;<\/span>template<span class=\"token punctuation\">&gt;<\/span><\/span>\n    <span class=\"token punctuation\">{<\/span>itemName<span class=\"token punctuation\">}<\/span>\n<span class=\"token operator\">&lt;<\/span><span class=\"token operator\">\/<\/span>template<span class=\"token operator\">&gt;<\/span><\/code><\/pre>\n<div class=\"toolbar\">\n<div class=\"toolbar-item\"><\/div>\n<\/div>\n<\/div>\n<\/div>\n<p><strong><span>todoItem.js<\/span><\/strong><\/p>\n<div>\n<div class=\"code-toolbar\">\n<pre class=\"line-numbers language-java\"><code class=\"language-java\"><span class=\"token keyword\">import<\/span> <span class=\"token punctuation\">{<\/span> <span class=\"token class-name\">LightningElement<\/span> <span class=\"token punctuation\">}<\/span> from <span class=\"token string\">'lwc'<\/span><span class=\"token punctuation\">;<\/span>\nexport <span class=\"token keyword\">default<\/span> <span class=\"token keyword\">class<\/span> <span class=\"token class-name\">TodoItem<\/span> <span class=\"token keyword\">extends<\/span> <span class=\"token class-name\">LightningElement<\/span> <span class=\"token punctuation\">{<\/span>\n    uppercaseItemName<span class=\"token punctuation\">;<\/span>\n    get <span class=\"token function\">itemName<\/span><span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">)<\/span> <span class=\"token punctuation\">{<\/span>\n        <span class=\"token keyword\">return<\/span> <span class=\"token keyword\">this<\/span><span class=\"token punctuation\">.<\/span>uppercaseItemName<span class=\"token punctuation\">;<\/span>\n    <span class=\"token punctuation\">}<\/span>\n    set <span class=\"token function\">itemName<\/span><span class=\"token punctuation\">(<\/span>value<span class=\"token punctuation\">)<\/span> <span class=\"token punctuation\">{<\/span>\n        <span class=\"token keyword\">this<\/span><span class=\"token punctuation\">.<\/span>uppercaseItemName <span class=\"token operator\">=<\/span> value<span class=\"token punctuation\">.<\/span><span class=\"token function\">toUpperCase<\/span><span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span>\n    <span class=\"token punctuation\">}<\/span>\n<span class=\"token punctuation\">}<\/span><\/code><\/pre>\n<div class=\"toolbar\">\n<div class=\"toolbar-item\"><\/div>\n<\/div>\n<\/div>\n<\/div>\n<p><strong><span>\u6ce8\u610f\uff1a<\/span><\/strong><span>\u00a0Lightning Web\u7ec4\u4ef6\u7684\u6807\u8bb0\u4e0d\u652f\u6301\u8ba1\u7b97\u503c\u7684\u8868\u8fbe\u5f0f\u3002\u800c\u662f\u8003\u8651\u4f7f\u7528getter\u6765\u8ba1\u7b97JavaScript\u6587\u4ef6\u4e2d\u7684\u503c\u3002\u00a0<\/span><\/p>\n<h2 id=\"conditional-rendering\"><span>\u6709\u6761\u4ef6\u7684\u6e32\u67d3<\/span><\/h2>\n<p><span>\u5728Visualforce\u4e2d\uff0c\u60a8\u53ef\u4ee5\u4f7f\u7528\u8be5<\/span><code>rendered<\/code><span>\u5c5e\u6027\u6709\u6761\u4ef6\u5730\u5448\u73b0\u6807\u8bb0\u3002\u8981\u5728Lightning Web\u7ec4\u4ef6\u4e2d\u6709\u6761\u4ef6\u5730\u5448\u73b0\u6807\u8bb0\uff0c\u8bf7\u4f7f\u7528<\/span><code>if:true|false<\/code>\u00a0<span>template\u6307\u4ee4<\/span><span>\u3002<\/span><span>HTML\u6a21\u677f\u6307\u4ee4<\/span><span>\u662f\u7279\u6b8a\u5c5e\u6027\uff0c\u53ef\u4e3a\u6a21\u677f\u6dfb\u52a0\u52a8\u6001\u884c\u4e3a\u3002\u5176\u4ed6\u77e5\u540d\u7684\u524d\u7aef\u6846\u67b6\uff08\u4f8b\u5982Angular\u548cVue\uff09\u4e5f\u4f7f\u7528\u6a21\u677f\u6307\u4ee4\u3002<\/span><\/p>\n<p><span>\u5728\u6b64\u793a\u4f8b\u4e2d\uff0c\u8be5<\/span><code>areDetailsVisible<\/code><span>\u5c5e\u6027\u5728\u63a7\u5236\u5668\uff08\u672a\u663e\u793a\uff09\u4e2d\u5b9a\u4e49\u3002\u6211\u4eec\u4f7f\u7528<\/span><code>areDetailsVisible<\/code><span>\u5c5e\u6027\u7684\u503c\u6765\u63a7\u5236\u9875\u9762\u4e0a\u67d0\u4e2a\u90e8\u5206\u7684\u53ef\u89c1\u6027\uff0c\u5982\u4e0b\u6240\u793a\uff1a<\/span><\/p>\n<p><strong><span>helloConditionalRendering.html<\/span><\/strong><\/p>\n<div>\n<div class=\"code-toolbar\">\n<pre class=\"line-numbers language-java\"><code class=\"language-java\"><span class=\"token generics\"><span class=\"token punctuation\">&lt;<\/span>template<span class=\"token punctuation\">&gt;<\/span><\/span>\n    <span class=\"token operator\">&lt;<\/span>template <span class=\"token keyword\">if<\/span><span class=\"token operator\">:<\/span><span class=\"token boolean\">true<\/span><span class=\"token operator\">=<\/span><span class=\"token punctuation\">{<\/span>areDetailsVisible<span class=\"token punctuation\">}<\/span><span class=\"token operator\">&gt;<\/span>\n        <span class=\"token class-name\">These<\/span> are the details<span class=\"token operator\">!<\/span>\n    <span class=\"token operator\">&lt;<\/span><span class=\"token operator\">\/<\/span>template<span class=\"token operator\">&gt;<\/span>\n<span class=\"token operator\">&lt;<\/span><span class=\"token operator\">\/<\/span>template<span class=\"token operator\">&gt;<\/span><\/code><\/pre>\n<div class=\"toolbar\">\n<div class=\"toolbar-item\"><\/div>\n<\/div>\n<\/div>\n<\/div>\n<p><span>\u5305\u542b\u201c\u8fd9\u4e9b\u5c31\u662f\u7ec6\u8282\uff01\u201d\u7684\u6a21\u677f\u00a0\u4ec5\u5728<\/span><code>areDetailsVisible<\/code><span>\u5c5e\u6027\u503c\u4e3a\u65f6\u663e\u793a<\/span><code>true<\/code><span>\u3002<\/span><\/p>\n<h2 id=\"rendering-lists\"><span>\u6e32\u67d3\u6e05\u5355<\/span><\/h2>\n<p><span>\u5728Visualforce\u4e2d\uff0c\u60a8\u53ef\u4ee5\u4f7f\u7528<\/span><code>&lt;apex:repeat&gt;<\/code><span>\u6807\u7b7e\u6765\u904d\u5386\u5217\u8868\u3002\u5728Lightning Web\u7ec4\u4ef6\u4e2d\uff0c\u4e24\u4e2a\u6a21\u677f\u6307\u4ee4\u6267\u884c<\/span><a href=\"https:\/\/developer.salesforce.com\/docs\/component-library\/documentation\/lwc\/lwc.create_lists\" target=\"_blank\" rel=\"noopener\"><span>\u8fed\u4ee3<\/span><\/a><span>\uff1a\u00a0<\/span><code>for:each<\/code><span>\u548c<\/span><code>iterator:iteratorName<\/code><span>\u3002\u5728\u6b64\u793a\u4f8b\u4e2d\uff0c\u6211\u4eec\u904d\u5386<\/span><code>contacts<\/code><span>\u00a0\u63a7\u5236\u5668\u4e2d\u7684\u00a0\u5c5e\u6027\u3002<\/span><\/p>\n<p><strong><span>compositionIteration.html<\/span><\/strong><\/p>\n<div>\n<div class=\"code-toolbar\">\n<pre class=\"line-numbers language-java\"><code class=\"language-java\"><span class=\"token generics\"><span class=\"token punctuation\">&lt;<\/span>template<span class=\"token punctuation\">&gt;<\/span><\/span>\n    <span class=\"token operator\">&lt;<\/span>template <span class=\"token keyword\">for<\/span><span class=\"token operator\">:<\/span>each<span class=\"token operator\">=<\/span><span class=\"token punctuation\">{<\/span>contacts<span class=\"token punctuation\">}<\/span> <span class=\"token keyword\">for<\/span><span class=\"token operator\">:<\/span>item<span class=\"token operator\">=<\/span><span class=\"token string\">\"contact\"<\/span><span class=\"token operator\">&gt;<\/span>\n        <span class=\"token operator\">&lt;<\/span>p key<span class=\"token operator\">=<\/span><span class=\"token punctuation\">{<\/span>contact<span class=\"token punctuation\">.<\/span><span class=\"token class-name\">Id<\/span><span class=\"token punctuation\">}<\/span><span class=\"token operator\">&gt;<\/span>\n            <span class=\"token punctuation\">{<\/span>contact<span class=\"token punctuation\">.<\/span><span class=\"token class-name\">Name<\/span><span class=\"token punctuation\">}<\/span>\n        <span class=\"token operator\">&lt;<\/span><span class=\"token operator\">\/<\/span>p<span class=\"token operator\">&gt;<\/span>\n    <span class=\"token operator\">&lt;<\/span><span class=\"token operator\">\/<\/span>template<span class=\"token operator\">&gt;<\/span>\n<span class=\"token operator\">&lt;<\/span><span class=\"token operator\">\/<\/span>template<span class=\"token operator\">&gt;<\/span><\/code><\/pre>\n<div class=\"toolbar\">\n<div class=\"toolbar-item\"><\/div>\n<\/div>\n<\/div>\n<\/div>\n<p><span>\u4ee3\u7801\u91cd\u70b9\uff1a<\/span><\/p>\n<ul>\n<li><span>\u7b2c2\u884c\uff1a\u6211\u4eec\u4f7f\u7528<\/span><code>for:each<\/code><span>template\u6307\u4ee4\u4e00\u6b21\u904d\u5386\u6240\u6709\u8054\u7cfb\u4eba\u3002\u7136\u540e\uff0c\u6211\u4eec\u4f7f\u7528<\/span><code>for:item<\/code><span>template\u6307\u4ee4\u521b\u5efa<\/span><code>contact<\/code><span>\u53d8\u91cf\uff0c\u8be5\u53d8\u91cf\u5728\u6bcf\u6b21\u8fed\u4ee3\u4e2d\u4e00\u6b21\u5305\u542b\u4e00\u4e2a\u5355\u72ec\u7684\u8054\u7cfb\u4eba\u3002<\/span><\/li>\n<li><span>\u7b2c3\u884c\uff1a\u7684\u6240\u6709\u76f4\u63a5\u5b50\u4ee3<\/span><code>for:item<\/code><span>\u5fc5\u987b\u5305\u542b\u552f\u4e00\u7684<\/span><code>key<\/code><span>\u6a21\u677f\u6307\u4ee4\u3002<\/span><\/li>\n<\/ul>\n<h2 id=\"invoking-java-script\"><span>\u8c03\u7528JavaScript<\/span><\/h2>\n<p><span>\u5728Visualforce\u9875\u9762\u4e2d\uff0c\u5f53\u7528\u6237\u4e0e\u9875\u9762\u4ea4\u4e92\u65f6\uff0c\u9875\u9762\u53ef\u4ee5\u6267\u884cJavaScript\u3002\u4f8b\u5982\uff0c\u9875\u9762\u53ef\u80fd\u5305\u542b<\/span><code>&lt;apex:commandButton&gt;<\/code><span>\uff0c\u4ee5\u54cd\u5e94\u6309\u94ae<\/span><code>click<\/code><span>\u4e8b\u4ef6\u6267\u884cJavaScript\u903b\u8f91\u3002\u60a8\u53ef\u4ee5\u901a\u8fc7\u5c06JavaScript\u903b\u8f91\u7ed1\u5b9a\u5230<\/span><code>onclick<\/code><span>\u6309\u94ae\u7684\u5c5e\u6027\u6765\u5b9e\u73b0\u3002\u5728Lightning Web\u7ec4\u4ef6\u4e2d\u8c03\u7528JavaScript\u7684\u65b9\u5f0f\u76f8\u540c\u3002\u4f46\u662f\uff0c\u5fc5\u987b\u5728JavaScript\u6587\u4ef6\u7684\u65b9\u6cd5\u4e2d\u5b9a\u4e49\u903b\u8f91\uff0c\u5e76\u4e14\u8be5\u65b9\u6cd5\u5fc5\u987b\u7ed1\u5b9a\u5230\u4e8b\u4ef6\uff0c\u5982\u4e0b\u6240\u793a\uff1a<\/span><\/p>\n<p><strong><span>eventHandler.html<\/span><\/strong><\/p>\n<div>\n<div class=\"code-toolbar\">\n<pre class=\"line-numbers language-java\"><code class=\"language-java\"><span class=\"token generics\"><span class=\"token punctuation\">&lt;<\/span>template<span class=\"token punctuation\">&gt;<\/span><\/span>\n    <span class=\"token operator\">&lt;<\/span>a onclick<span class=\"token operator\">=<\/span><span class=\"token punctuation\">{<\/span>handleButtonClick<span class=\"token punctuation\">}<\/span><span class=\"token operator\">&gt;<\/span><span class=\"token operator\">&lt;<\/span><span class=\"token operator\">\/<\/span>a<span class=\"token operator\">&gt;<\/span>\n<span class=\"token operator\">&lt;<\/span><span class=\"token operator\">\/<\/span>template<span class=\"token operator\">&gt;<\/span><\/code><\/pre>\n<div class=\"toolbar\">\n<div class=\"toolbar-item\"><\/div>\n<\/div>\n<\/div>\n<\/div>\n<p><strong><span>eventHandler.js<\/span><\/strong><\/p>\n<div>\n<div class=\"code-toolbar\">\n<pre class=\"line-numbers language-java\"><code class=\"language-java\"><span class=\"token keyword\">import<\/span> <span class=\"token punctuation\">{<\/span> <span class=\"token class-name\">LightningElement<\/span> <span class=\"token punctuation\">}<\/span> from <span class=\"token string\">'lwc'<\/span><span class=\"token punctuation\">;<\/span>\nexport <span class=\"token keyword\">default<\/span> <span class=\"token keyword\">class<\/span> <span class=\"token class-name\">EventHandler<\/span> <span class=\"token keyword\">extends<\/span> <span class=\"token class-name\">LightningElement<\/span> <span class=\"token punctuation\">{<\/span>\n    <span class=\"token function\">handleButtonClick<\/span><span class=\"token punctuation\">(<\/span>event<span class=\"token punctuation\">)<\/span> <span class=\"token punctuation\">{<\/span>\n        <span class=\"token comment\">\/\/ Do whatever...<\/span>\n    <span class=\"token punctuation\">}<\/span>\n<span class=\"token punctuation\">}<\/span><\/code><\/pre>\n<div class=\"toolbar\">\n<div class=\"toolbar-item\"><\/div>\n<\/div>\n<\/div>\n<\/div>\n<p><span>\u4ee3\u7801\u91cd\u70b9\uff1a<\/span><\/p>\n<p><strong><span>eventHandler.html<\/span><\/strong><\/p>\n<ul>\n<li><span>\u7b2c2\u884c\uff1a\u6211\u4eec\u4f7f\u7528standard<\/span><code>onclick<\/code>\u00a0<span>\u5c5e\u6027<\/span><span>\u4e3a\u6807\u51c6<\/span><code>click<\/code>\u00a0<span>DOM\u4e8b\u4ef6<\/span><span>\u6307\u5b9a\u5904\u7406\u7a0b\u5e8f\u3002\u5927\u62ec\u53f7<\/span><code>{}<\/code><span>\u8868\u793a\u4e8b\u4ef6\u5904\u7406\u7a0b\u5e8f\u662f<\/span><code>handleButtonClick<\/code><span>JavaScript\u6587\u4ef6\u4e2d\u7684\u65b9\u6cd5\u3002<\/span><\/li>\n<\/ul>\n<p><strong><span>eventHandler.js<\/span><\/strong><\/p>\n<ul>\n<li><span>\u7b2c3\u884c\uff1a\u6211\u4eec\u5b9a\u4e49\u4e86<\/span><code>handleButtonClick<\/code><span>\u5904\u7406\u7a0b\u5e8f\uff0c\u4ee5\u63a5\u6536<\/span><code>event<\/code><span>\u4f5c\u4e3a\u53c2\u6570\u3002<\/span><\/li>\n<\/ul>\n<p><span>\u5f53\u60a8\u7684\u5904\u7406\u7a0b\u5e8f\u9700\u8981\u8bbf\u95ee\u4e8b\u4ef6\u6240\u643a\u5e26\u7684\u72b6\u6001\u6216\u6570\u636e\u65f6\uff0c\u8bf7\u4f7f\u7528\u4e8b\u4ef6\u5bf9\u8c61\u3002\u5728\u8fd9\u79cd\u60c5\u51b5\u4e0b\uff0c\u60a8\u53ef\u4ee5\u4f7f\u7528\u4e8b\u4ef6\u5bf9\u8c61\u6765\u67e5\u627e\u5c06\u4e8b\u4ef6\u8c03\u5ea6\u5230\u7684\u5bf9\u8c61\u6216\u5355\u51fb\u4e8b\u4ef6\u7684\u6b21\u6570\u3002\u6211\u4eec\u5c06\u5728\u672c\u6a21\u5757\u7684\u540e\u9762\u90e8\u5206\u8be6\u7ec6\u8ba8\u8bba\u4e8b\u4ef6\u3002<\/span><\/p>\n<h2 id=\"standard-components\"><span>\u6807\u51c6\u4ef6<\/span><\/h2>\n<p><span>\u300a\u00a0Visualforce\u5f00\u53d1\u4eba\u5458\u6307\u5357\u300b\u4e2d\u7684\u201c\u00a0<\/span><span>\u6807\u51c6\u7ec4\u4ef6\u53c2\u8003<\/span><span>\u201d\u662f\u6807\u51c6Visualforce\u7ec4\u4ef6\u7684\u5e93\u3002\u540c\u6837\uff0c\u300a Lightning\u5f00\u53d1\u4eba\u5458\u6307\u5357\u300b\u00a0<\/span><span>\u7ec4\u4ef6\u53c2\u8003<\/span><span>\u00a0\u662f\u57fa\u7840\uff08\u6807\u51c6\uff09Lightning\u7ec4\u4ef6\u7684\u5e93\u3002<\/span><\/p>\n<p><strong><span>\u63d0\u793a\uff1a<\/span><\/strong><span>\u8981\u5728\u53c2\u8003\u4e2d\u4ec5\u67e5\u770b\u57fa\u7840\u7684Lightning Web\u7ec4\u4ef6\uff0c\u8bf7\u5c55\u5f00\u201c<\/span><strong><span>\u8fc7\u6ee4\u5668\u201d<\/span><\/strong><span>\u00a0\uff0c\u7136\u540e\u00a0\u5728\u201c\u7f16\u7a0b\u6a21\u578b\u201d\u4e0b\u9009\u62e9\u201c\u00a0<\/span><strong><span>Lightning Web\u7ec4\u4ef6<\/span><\/strong><span>\u201d\u3002<\/span><\/p>\n<p><span>\u4f7f\u7528\u57fa\u672c\u7ec4\u4ef6\u5feb\u901f\u8f7b\u677e\u5730\u5f00\u53d1\u5e94\u7528\u7a0b\u5e8f\u3002Salesforce\u7ef4\u62a4\u57fa\u672c\u7ec4\u4ef6\uff0c\u5e76\u521b\u5efa\u60a8\u81ea\u52a8\u63a5\u6536\u7684\u65b0\u529f\u80fd\u3002<\/span><\/p>\n<p><span>\u57fa\u7840Lightning Web\u7ec4\u4ef6\u53cd\u6620\u4e86Salesforce\u7684\u5916\u89c2\u3002\u4ed6\u4eec\u5177\u6709\u7531<\/span><span>Salesforce\u95ea\u7535\u8bbe\u8ba1\u7cfb\u7edf\uff08SLDS\uff09<\/span><span>\u63d0\u4f9b\u7684\u96c6\u6210\u6837\u5f0f\u00a0\u3002\u8bbe\u8ba1\u7cfb\u7edf\u5305\u62ec\u6240\u6709\u57fa\u672c\u7ec4\u4ef6\u7684\u84dd\u56fe\u4ee5\u53ca\u53ef\u4ee5\u5728\u81ea\u5df1\u7684\u7ec4\u4ef6\u4e2d\u4f7f\u7528\u7684CSS\u7c7b\u3002\u4f7f\u7528SLDS\u7f51\u7ad9\u4e86\u89e3\u5728\u6784\u5efa\u81ea\u5b9a\u4e49\u7ec4\u4ef6\u65f6\u9002\u7528\u7684\u6837\u5f0f\u6307\u5bfc\u3002<\/span><\/p>\n<div class=\"box message info\">\n<div class=\"inner\">\n<div class=\"bd\">\n<div class=\"media\">\n<div class=\"mediaBd\">\n<h4 class=\"mbs\"><span>\u6ce8\u610f<\/span><\/h4>\n<div class=\"message-media-content\">\n<p><span>\u4e00\u4e9b\u57fa\u672c\u7ec4\u4ef6\u5df2\u00a0<\/span><span>\u5f00\u6e90<\/span><span>\u3002\u5982\u679c\u60a8\u9700\u8981\u7684\u5b9a\u5236\u8fdc\u8fdc\u8d85\u51fa\u57fa\u672c\u7ec4\u4ef6\u7684\u5141\u8bb8\u8303\u56f4\uff0c\u8bf7\u514b\u9686\u5f00\u6e90\u7ec4\u4ef6\u5e76\u5c06\u60a8\u81ea\u5df1\u7684\u7248\u672c\u5b9e\u73b0\u4e3a\u5b9a\u5236\u7ec4\u4ef6\u3002<\/span><\/p>\n<\/div>\n<\/div>\n<\/div>\n<\/div>\n<\/div>\n<\/div>\n<p><span>\u8981\u4e86\u89e3\u54ea\u4e9b\u57fa\u7840Lightning Web\u7ec4\u4ef6\u4e0e\u67d0\u4e9b\u6807\u51c6Visualforce\u7ec4\u4ef6\u76f8\u5339\u914d\uff0c\u8bf7\u53c2\u9605\u201c\u8d44\u6e90\u201d\u90e8\u5206\u4e2d\u7684Visualforce\u6807\u51c6\u7ec4\u4ef6\u548c\u57fa\u7840Lightning Web\u7ec4\u4ef6\u5e76\u6392\u3002<\/span><\/p>\n<h2 id=\"composition\"><span>\u7ec4\u6210<\/span><\/h2>\n<p><span>\u5728Visualforce\u4e2d\uff0c\u60a8\u4f7f\u7528\u8bf8\u5982<\/span><code>&lt;apex:component&gt;<\/code><span>\u548c\u7684\u6807\u8bb0<\/span><code>&lt;apex:include&gt;<\/code><span>\u6765\u5b9e\u73b0\u5408\u6210\u3002\u5f53Visualforce\u9875\u9762\u5305\u542bVisualforce\u7ec4\u4ef6\u65f6\uff0c\u4f7f\u7528<\/span><code>&lt;apex:attribute&gt;<\/code><span>\u6807\u7b7e\u5f88\u5bb9\u6613\u5c06\u4fe1\u606f\u4f20\u9012\u5230\u8be5\u7ec4\u4ef6\u00a0\u3002\u4f46\u662f\uff0c\u5c06\u4fe1\u606f\u4f20\u9012\u56de\u9875\u9762\u6d89\u53ca\u66f4\u590d\u6742\u7684\u6a21\u5f0f\uff0c\u4f8b\u5982\u00a0<\/span><span>Apex\u63a7\u5236\u5668\u7684\u5c42\u6b21\u7ed3\u6784<\/span><span>\u3002<\/span><\/p>\n<p><span>Lightning Web\u7ec4\u4ef6\u4e2d\u7684\u7ec4\u6210\u76f8\u4f3c\u3002\u7236\u7ea7Lightning Web\u7ec4\u4ef6\u53ef\u4ee5\u5305\u62ec\u5b50\u7ea7\u7ec4\u4ef6\u5e76\u4e0e\u5176\u901a\u4fe1\u3002\u00a0<\/span><\/p>\n<p><img decoding=\"async\" class=\"image image-block image-center\" src=\"https:\/\/res.cloudinary.com\/hy4kyit2a\/f_auto,fl_lossy,q_70\/learn\/modules\/lwc-for-visualforce-developers\/learn-how-coding-concepts-apply-to-lwc\/images\/e679f747276d9e0548fc237c66547cae_8128-cc-20-8-c-47-49-ef-a-978-0-f-2-d-0314-e-3-d-3.png\" alt=\"\u7528\u6237\u754c\u9762\uff0c\u5176\u4e2d\u201c\u5e10\u6237\u641c\u7d22\u201d\u7ec4\u4ef6\u5305\u542b\u201c\u5458\u5de5\u4eba\u6570\u201d\u8f93\u5165\u5b57\u6bb5\u7ec4\u4ef6\u3002\" width=\"624\" height=\"147\" \/><\/p>\n<p><span>\u7b80\u5316\u4e86\u7ec4\u6210\u548c\u901a\u4fe1\u673a\u5236\uff0c\u4ee5\u4fbf\u6b63\u786e\u5c01\u88c5\u4e86\u6bcf\u4e2a\u7ec4\u4ef6\u7684\u903b\u8f91\uff0c\u5e76\u4e0e\u5176\u4ed6\u7ec4\u4ef6\u8fdb\u884c\u677e\u6563\u8026\u5408\u3002<\/span><\/p>\n<p><span>\u8981\u5c06\u5b50\u7ec4\u4ef6\u5305\u542b\u5728\u7236\u7ec4\u4ef6\u4e2d\uff0c\u8bf7\u5728kebab\u60c5\u51b5\u4e0b\u4f7f\u7528\u5b50\u7ec4\u4ef6\u540d\u79f0\u5b9e\u4f8b\u5316\u8be5\u7ec4\u4ef6\uff08\u662f\u7684\uff0c\u770b\u8d77\u6765\u50cfkebab\uff09\uff0c\u5176\u540e\u662f\u5176\u540d\u79f0\u7a7a\u95f4\u3002\u81ea\u5b9a\u4e49\u7ec4\u4ef6\u7684\u9ed8\u8ba4\u540d\u79f0\u7a7a\u95f4\u662f<\/span><code>c<\/code><span>\u3002\u57fa\u672c\u7ec4\u4ef6\u4f7f\u7528<\/span><code>lightning<\/code><span>\u540d\u79f0\u7a7a\u95f4\u3002<\/span><\/p>\n<p><span>\u5728\u6b64\u793a\u4f8b\u4e2d\uff0ccontactTile\u5b9a\u5236\u7ec4\u4ef6\u548c<\/span><code>lightning-badge<\/code>\u00a0<span>\u57fa\u7840\u7ec4\u4ef6<\/span><span>\u4f5c\u4e3acompositionBasics\u7ec4\u4ef6\u7684\u5b50\u4ee3\u5305\u62ec\u5728\u5185\u3002<\/span><\/p>\n<p><strong><span>compositionBasics.html<\/span><\/strong><\/p>\n<div>\n<div class=\"code-toolbar\">\n<pre class=\"line-numbers language-java\"><code class=\"language-java\"><span class=\"token generics\"><span class=\"token punctuation\">&lt;<\/span>template<span class=\"token punctuation\">&gt;<\/span><\/span>\n    <span class=\"token operator\">&lt;<\/span>c<span class=\"token operator\">-<\/span>contact<span class=\"token operator\">-<\/span>tile contact<span class=\"token operator\">=<\/span><span class=\"token punctuation\">{<\/span>contact<span class=\"token punctuation\">}<\/span><span class=\"token operator\">&gt;<\/span><span class=\"token operator\">&lt;<\/span><span class=\"token operator\">\/<\/span>c<span class=\"token operator\">-<\/span>contact<span class=\"token operator\">-<\/span>tile<span class=\"token operator\">&gt;<\/span>\n    <span class=\"token operator\">&lt;<\/span>lightning<span class=\"token operator\">-<\/span>badge label<span class=\"token operator\">=<\/span><span class=\"token string\">\"LWC rocks!\"<\/span><span class=\"token operator\">&gt;<\/span><span class=\"token operator\">&lt;<\/span><span class=\"token operator\">\/<\/span>lightning<span class=\"token operator\">-<\/span>badge<span class=\"token operator\">&gt;<\/span>\n<span class=\"token generics\"><span class=\"token punctuation\">&lt;<\/span>template<span class=\"token punctuation\">&gt;<\/span><\/span>\n<\/code><\/pre>\n<div class=\"toolbar\">\n<div class=\"toolbar-item\"><\/div>\n<\/div>\n<\/div>\n<\/div>\n<p><span>\u8981\u5c06\u4fe1\u606f\u4ece\u7236\u7ec4\u4ef6\u4f20\u9012\u5230\u5b50\u7ec4\u4ef6\uff0c\u8bf7\u4f7f\u7528\u00a0<\/span><span>public\u5c5e\u6027<\/span><span>\u00a0\u548c\u00a0<\/span><span>public\u65b9\u6cd5<\/span><span>\u3002<\/span><code>@api<\/code><span>\u5728JavaScript\u6587\u4ef6\u4e2d\u5e26\u6709\u88c5\u9970\u5668\u7684\u5c5e\u6027\u6216\u65b9\u6cd5\u4e4b\u524d\uff0c\u4f1a\u5c06\u5176\u516c\u5f00\uff0c\u4ee5\u4fbf\u5176\u4ed6\u7ec4\u4ef6\u53ef\u4ee5\u8bbf\u95ee\u5b83\u3002\u8981\u5c06\u4fe1\u606f\u4ece\u5b50\u7ea7\u4f20\u9012\u5230\u5176\u7236\u7ea7\u7ec4\u4ef6\uff0c\u8bf7\u4ece\u6807\u8bb0\u4e2d\u5206\u6d3e\u6807\u51c6DOM\u4e8b\u4ef6\u6216\u81ea\u5b9a\u4e49\u4e8b\u4ef6\uff08\u8bf7\u53c2\u89c1\u00a0<\/span><span>CustomEvent<\/span><span>\uff09\u3002\u81ea\u5b9a\u4e49\u4e8b\u4ef6\u4e0d\u5728\u6b64\u6a21\u5757\u7684\u8303\u56f4\u5185\u3002\u7236\u7ec4\u4ef6\u5fc5\u987b\u5177\u6709\u4e00\u4e2a\u4fa6\u542c\u4e8b\u4ef6\u7684\u4e8b\u4ef6\u5904\u7406\u7a0b\u5e8f\u3002\u8ba9\u6211\u4eec\u8003\u8651\u4e00\u4e2a\u793a\u4f8b\uff0c\u5728\u8be5\u793a\u4f8b\u4e2d\uff0c\u6bcf\u5f53\u7528\u6237\u66f4\u6539\u5176\u503c\u65f6\uff0c<\/span><code>lightning-input<\/code>\u00a0<span>\u57fa\u672c\u7ec4\u4ef6\u90fd\u4f1a<\/span><span>\u901a\u77e5\u5176\u7236\u7ec4\u4ef6\u3002<\/span><\/p>\n<p><strong><span>accountSearch.html<\/span><\/strong><\/p>\n<div>\n<div class=\"code-toolbar\">\n<pre class=\"line-numbers language-java\"><code class=\"language-java\"><span class=\"token generics\"><span class=\"token punctuation\">&lt;<\/span>template<span class=\"token punctuation\">&gt;<\/span><\/span>\n    <span class=\"token operator\">&lt;<\/span>lightning<span class=\"token operator\">-<\/span>input\n        type<span class=\"token operator\">=<\/span><span class=\"token string\">\"number\"<\/span>\n        label<span class=\"token operator\">=<\/span><span class=\"token string\">\"Number of Employees\"<\/span>\n        value<span class=\"token operator\">=<\/span><span class=\"token punctuation\">{<\/span>numberOfEmployees<span class=\"token punctuation\">}<\/span>\n        onchange<span class=\"token operator\">=<\/span><span class=\"token punctuation\">{<\/span>handleChange<span class=\"token punctuation\">}<\/span><span class=\"token operator\">&gt;<\/span>\n    <span class=\"token operator\">&lt;<\/span><span class=\"token operator\">\/<\/span>lightning<span class=\"token operator\">-<\/span>input<span class=\"token operator\">&gt;<\/span>\n<span class=\"token operator\">&lt;<\/span><span class=\"token operator\">\/<\/span>template<span class=\"token operator\">&gt;<\/span><\/code><\/pre>\n<div class=\"toolbar\">\n<div class=\"toolbar-item\"><\/div>\n<\/div>\n<\/div>\n<\/div>\n<p><strong><span>accountSearch.js<\/span><\/strong><\/p>\n<div>\n<div class=\"code-toolbar\">\n<pre class=\"line-numbers language-java\"><code class=\"language-java\"><span class=\"token keyword\">import<\/span> <span class=\"token punctuation\">{<\/span> <span class=\"token class-name\">LightningElement<\/span> <span class=\"token punctuation\">}<\/span> from <span class=\"token string\">'lwc'<\/span><span class=\"token punctuation\">;<\/span>\nexport <span class=\"token keyword\">default<\/span> <span class=\"token keyword\">class<\/span> <span class=\"token class-name\">AccountSearch<\/span> <span class=\"token keyword\">extends<\/span> <span class=\"token class-name\">LightningElement<\/span> <span class=\"token punctuation\">{<\/span>\n    numberOfEmployees <span class=\"token operator\">=<\/span> <span class=\"token keyword\">null<\/span><span class=\"token punctuation\">;<\/span>\n    <span class=\"token function\">handleChange<\/span><span class=\"token punctuation\">(<\/span>event<span class=\"token punctuation\">)<\/span> <span class=\"token punctuation\">{<\/span>\n        <span class=\"token keyword\">this<\/span><span class=\"token punctuation\">.<\/span>numberOfEmployees <span class=\"token operator\">=<\/span> event<span class=\"token punctuation\">.<\/span>detail<span class=\"token punctuation\">.<\/span>value<span class=\"token punctuation\">;<\/span>\n    <span class=\"token punctuation\">}<\/span>\n<span class=\"token punctuation\">}<\/span><\/code><\/pre>\n<div class=\"toolbar\">\n<div class=\"toolbar-item\"><\/div>\n<\/div>\n<\/div>\n<\/div>\n<p><span>\u4ee3\u7801\u91cd\u70b9\uff1a<\/span><\/p>\n<p><strong><span>accountSearch.html<\/span><\/strong><\/p>\n<ul>\n<li><span>\u7b2c2-7\u884c\uff1a\u6211\u4eec\u4f7f\u7528<\/span><code>lightning-input<\/code><span>\u00a0\u57fa\u672c\u7ec4\u4ef6\u8bfb\u53d6\u7528\u6237\u5728\u8f93\u5165\u5b57\u6bb5\u4e2d\u8f93\u5165\u7684\u503c\u3002<\/span><code>lightning-input<\/code><span>\u662f\u7684\u5b69\u5b50<\/span><code>c-account-search<\/code><span>\u3002<\/span><\/li>\n<li><span>\u7b2c5\u884c\uff1a\u901a\u8fc7\u5c06\u7236\u7ea7\u5c5e\u6027\u7ed1\u5b9a\u5230\u5b50\u7ea7\u5c5e\u6027\uff0c\u5c06<\/span><code>numberOfEmployees<\/code><span>\u5c5e\u6027\u503c\u4ece<\/span><code>c-account-search<\/code><span>\uff08\u7236\u7ea7\u7ec4\u4ef6\uff09\u4f20\u9012\u5230<\/span><code>lightning-input<\/code><span>\uff08\u5b50\u7ea7\u7ec4\u4ef6\uff09\u3002\u6211\u4eec\u53ef\u4ee5\u6267\u884c\u6b64\u64cd\u4f5c\uff0c\u56e0\u4e3a\u57fa\u672c\u7ec4\u4ef6\u5177\u6709\u540d\u4e3a\u7684\u516c\u5171\u5c5e\u6027\u3002<\/span><code>numberOfEmployees<\/code><code>value<\/code><code>lightning-input<\/code><code>value<\/code><\/li>\n<li><span>\u7b2c6\u884c\uff1a\u6211\u4eec\u5c06\u4e00\u4e2a\u540d\u4e3a\u5904\u7406\u7a0b\u5e8f<\/span><code>handleChange<\/code><span>\u7684<\/span><code>change<\/code><span>\u4e8b\u4ef6\u7ed1\u5b9a\u5230\u8be5<\/span><code>lightning-input<\/code><span>\u7ec4\u4ef6\u89e6\u53d1\u7684\u4e8b\u4ef6\uff0c\u5c06\u4fe1\u606f\u4f20\u9012\u7ed9\u7236\u7ea7\u3002<\/span><code>change<\/code><span>\u662f<\/span><span>\u6807\u51c6\u7684DOM\u4e8b\u4ef6<\/span><span>\u3002\u8fd9\u662f<\/span><code>lightning-input<\/code><span>\u7ec4\u4ef6\u5c06\u7528\u6237\u8f93\u5165\u53d1\u9001\u5230\u7684\u65b9\u5f0f<\/span><code>c-account-search<\/code><span>\u3002<\/span><\/li>\n<\/ul>\n<p><strong><span>accountSearch.js<\/span><\/strong><\/p>\n<ul>\n<li><span>\u7b2c5\u884c\uff1a\u6211\u4eec\u4ece\u4e2d\u8bfb\u53d6\u7528\u6237\u8f93\u5165<\/span><code>event.detail.value<\/code><span>\u3002<\/span><\/li>\n<\/ul>\n<p><span>\u8981\u4e86\u89e3\u6709\u5173\u8fd9\u4e9b\u901a\u4fe1\u6a21\u5f0f\u7684\u66f4\u591a\u4fe1\u606f\uff0c\u8bf7\u53c2\u9605<\/span><span>Lightning Web Components\u57fa\u7840<\/span><span>\u00a0\u6a21\u5757\u4e2d\u7684Lightning Web Components\u4e2d\u7684\u5904\u7406\u4e8b\u4ef6\u00a0\u3002<\/span><\/p>\n","protected":false},"excerpt":{"rendered":"<p>\u5b66\u4e60\u76ee\u6807\u00a0 \u5b8c\u6210\u672c\u5355\u5143\u540e\uff0c\u60a8\u5c06\u80fd\u591f\uff1a \u89e3\u91caVisualforce\u548cLightning Web\u7ec4\u4ef6\u4e4b\u95f4\u7684\u4f53\u7cfb\u7ed3\u6784 &hellip; <a href=\"http:\/\/www.ponybai.com\/?p=3265\" class=\"more-link\">\u7ee7\u7eed\u9605\u8bfb<span class=\"screen-reader-text\">\u9002\u7528\u4e8eVisualforce\u5f00\u53d1\u4eba\u5458\u7684Lightning Web\u7ec4\u4ef6 &#8211; \u4e86\u89e3\u7f16\u7801\u6982\u5ff5\u5982\u4f55\u5e94\u7528\u4e8eLightning Web Components<\/span><\/a><\/p>\n","protected":false},"author":1,"featured_media":3266,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[138],"tags":[],"class_list":["post-3265","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-visualforcelightning-web"],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v21.7 - https:\/\/yoast.com\/wordpress\/plugins\/seo\/ -->\n<title>\u9002\u7528\u4e8eVisualforce\u5f00\u53d1\u4eba\u5458\u7684Lightning Web\u7ec4\u4ef6 - \u4e86\u89e3\u7f16\u7801\u6982\u5ff5\u5982\u4f55\u5e94\u7528\u4e8eLightning Web Components - \u767d\u767d\u968f\u7b14<\/title>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"http:\/\/www.ponybai.com\/?p=3265\" \/>\n<meta property=\"og:locale\" content=\"zh_CN\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"\u9002\u7528\u4e8eVisualforce\u5f00\u53d1\u4eba\u5458\u7684Lightning Web\u7ec4\u4ef6 - \u4e86\u89e3\u7f16\u7801\u6982\u5ff5\u5982\u4f55\u5e94\u7528\u4e8eLightning Web Components - \u767d\u767d\u968f\u7b14\" \/>\n<meta property=\"og:description\" content=\"\u5b66\u4e60\u76ee\u6807\u00a0 \u5b8c\u6210\u672c\u5355\u5143\u540e\uff0c\u60a8\u5c06\u80fd\u591f\uff1a \u89e3\u91caVisualforce\u548cLightning Web\u7ec4\u4ef6\u4e4b\u95f4\u7684\u4f53\u7cfb\u7ed3\u6784 &hellip; \u7ee7\u7eed\u9605\u8bfb\u9002\u7528\u4e8eVisualforce\u5f00\u53d1\u4eba\u5458\u7684Lightning Web\u7ec4\u4ef6 &#8211; \u4e86\u89e3\u7f16\u7801\u6982\u5ff5\u5982\u4f55\u5e94\u7528\u4e8eLightning Web Components\" \/>\n<meta property=\"og:url\" content=\"http:\/\/www.ponybai.com\/?p=3265\" \/>\n<meta property=\"og:site_name\" content=\"\u767d\u767d\u968f\u7b14\" \/>\n<meta property=\"article:published_time\" content=\"2021-01-13T05:55:43+00:00\" \/>\n<meta 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