{"id":38982,"date":"2023-11-27T11:38:36","date_gmt":"2023-07-18T11:42:45","guid":{"rendered":"https:\/\/www.silicloud.com\/zh\/blog\/%e5%8f%82%e7%85%a7angular%e5%85%ac%e5%bc%8f%e6%96%87%e4%bb%b6%e4%bb%a5%e7%90%86%e8%a7%a3angular%ef%bc%9a%e2%91%a0\/"},"modified":"2024-05-04T11:01:00","modified_gmt":"2024-05-04T03:01:00","slug":"%e5%8f%82%e7%85%a7angular%e5%85%ac%e5%bc%8f%e6%96%87%e4%bb%b6%e4%bb%a5%e7%90%86%e8%a7%a3angular%ef%bc%9a%e2%91%a0","status":"publish","type":"post","link":"https:\/\/www.silicloud.com\/zh\/blog\/%e5%8f%82%e7%85%a7angular%e5%85%ac%e5%bc%8f%e6%96%87%e4%bb%b6%e4%bb%a5%e7%90%86%e8%a7%a3angular%ef%bc%9a%e2%91%a0\/","title":{"rendered":"\u53c2\u7167Angular\u516c\u5f0f\u6587\u4ef6\u4ee5\u7406\u89e3Angular\uff1a\u2460"},"content":{"rendered":"<h1>\u9996\u5148<\/h1>\n<p>\u6211\u5bf9React\u6709\u4e86\u4e00\u5b9a\u7684\u7406\u89e3\uff0c\u4f46\u56e0\u4e3a\u5de5\u4f5c\u9700\u8981\u7406\u89e3Angular\u7684\u4ee3\u7801\uff0c\u6240\u4ee5\u51b3\u5b9a\u5b66\u4e60\u4e00\u4e0b\u3002Angular\u662fJavaScript\u4e09\u5927\u6846\u67b6\u4e4b\u4e00\uff0c\u5e0c\u671b\u80fd\u591f\u5728\u5b66\u4e60\u7684\u8fc7\u7a0b\u4e2d\u611f\u53d7\u5230\u4e0eReact\u7684\u533a\u522b\u3002\u6211\u4f1a\u53c2\u8003\u5b98\u65b9\u6587\u6863\u6765\u8fdb\u884c\u5b66\u4e60\u3002<\/p>\n<h1>\u57fa\u672c\u4e8b\u9879 (j\u012b sh\u00ec<\/h1>\n<p>\u9996\u5148\uff0c\u8981\u7406\u89e3Angular\u7684\u57fa\u672c\u6982\u5ff5\u3002\u76ee\u524d\u6211\u5011\u53ea\u901a\u904e\u95b1\u8b80Angular\u7684\u5b98\u65b9\u6587\u4ef6\uff0c\u4f86\u4e86\u89e3Angular\u662f\u4ec0\u9ebc\uff0c\u5982\u679c\u6709\u4efb\u4f55\u8aa4\u89e3\uff0c\u8acb\u52d9\u5fc5\u7cfe\u6b63\u3002<\/p>\n<ul class=\"post-ul\">\n<li style=\"list-style-type: none;\">\n<ul class=\"post-ul\">\u30b3\u30f3\u30dd\u30fc\u30cd\u30f3\u30c8<\/ul>\n<\/li>\n<\/ul>\n<p>&nbsp;<\/p>\n<ul class=\"post-ul\">\n<li style=\"list-style-type: none;\">\n<ul class=\"post-ul\">\u30a2\u30d7\u30ea\u306e\u69cb\u6210\u8981\u7d20\u3002@Component() \u30c7\u30b3\u30ec\u30fc\u30bf\u3092\u3064\u3051\u305f TypeScript \u30af\u30e9\u30b9\u3001HMTL \u30c6\u30f3\u30d7\u30ec\u30fc\u30c8\u3001\u30b9\u30bf\u30a4\u30eb\u304c\u542b\u307e\u308c\u308b\u3002\u30ab\u30d7\u30bb\u30eb\u5316\u3067\u304d\u3001\u76f4\u611f\u7684\u306a\u30a2\u30d7\u30ea\u69cb\u9020\u306b\u3067\u304d\u308b\u3002<\/ul>\n<\/li>\n<\/ul>\n<p>&nbsp;<\/p>\n<ul class=\"post-ul\">\n<li style=\"list-style-type: none;\">\n<ul class=\"post-ul\">\u30c6\u30f3\u30d7\u30ec\u30fc\u30c8<\/ul>\n<\/li>\n<\/ul>\n<p>&nbsp;<\/p>\n<ul class=\"post-ul\">\n<li style=\"list-style-type: none;\">\n<ul class=\"post-ul\">\u30b3\u30f3\u30dd\u30fc\u30cd\u30f3\u30c8\u306b\u5fc5\u8981\u3068\u306a\u308b HTML \u30c6\u30f3\u30d7\u30ec\u30fc\u30c8\u3002\u30b3\u30f3\u30dd\u30fc\u30cd\u30f3\u30c8\u304b\u3089\u52d5\u7684\u306a\u5024\u3092\u53d7\u3051\u53d6\u308a\u3001\u72b6\u614b\u5909\u5316\u306b\u5408\u308f\u305b\u3066\u81ea\u52d5\u66f4\u65b0\u3067\u304d\u308b\u3002\u5024\u3060\u3051\u3067\u306a\u304f\u3001HTML \u3084 CSS\u3001\u30a4\u30d9\u30f3\u30c8\u3082\u30b3\u30f3\u30dd\u30fc\u30cd\u30f3\u30c8\u304b\u3089\u6e21\u3059\u3053\u3068\u304c\u3067\u304d\u308b\u3002\u30c7\u30a3\u30ec\u30af\u30c6\u30a3\u30d6\u3068\u3044\u3046\u6a5f\u80fd\u3082\u3042\u308b\u3089\u3057\u3044\u304c\u3001\u3053\u308c\u306f\u73fe\u72b6\u6b63\u78ba\u306b\u306f\u7406\u89e3\u3067\u304d\u3066\u3044\u306a\u3044\u3002\u30d5\u30e9\u30b0\u306b\u3088\u3063\u3066\u8868\u793a\u3092\u5909\u3048\u3089\u308c\u308b ngIf \u306a\u3069\u3001\u591a\u6570\u306e\u30c7\u30a3\u30ec\u30af\u30c6\u30a3\u30d6\u304c\u3042\u3089\u304b\u3058\u3081\u7528\u610f\u3055\u308c\u3066\u3044\u308b\u3002<\/ul>\n<\/li>\n<\/ul>\n<p>&nbsp;<\/p>\n<ul class=\"post-ul\">\n<li style=\"list-style-type: none;\">\n<ul class=\"post-ul\">\u4f9d\u5b58\u6027\u306e\u6ce8\u5165\uff08DI; Dependency Injection\uff09<\/ul>\n<\/li>\n<\/ul>\n<p>&nbsp;<\/p>\n<ul class=\"post-ul\">\u30b3\u30f3\u30dd\u30fc\u30cd\u30f3\u30c8\u3067\u4f7f\u7528\u3057\u305f\u3044\u30b5\u30fc\u30d3\u30b9\u3092\u6ce8\u5165\u3067\u304d\u308b\u3002\u30a4\u30f3\u30b9\u30bf\u30f3\u30b9\u5316\u3092\u660e\u793a\u7684\u306b\u884c\u308f\u306a\u304f\u3066\u3082\u30b5\u30fc\u30d3\u30b9\u3092\u6271\u3048\u308b\u305f\u3081\u3001\u7c21\u5358\u304b\u3064\u67d4\u8edf\u306b\u30b5\u30fc\u30d3\u30b9\u3092\u30b3\u30f3\u30dd\u30fc\u30cd\u30f3\u30c8\u5185\u3067\u4f7f\u7528\u3067\u304d\u308b\u3002<\/ul>\n<p>\u4e0e React \u76f8\u6bd4\uff0c\u7ec4\u4ef6\u7684\u6982\u8ff0\u662f\u76f8\u540c\u7684\uff08\u5c3d\u7ba1\u6709\u51fd\u6570\u7ec4\u4ef6\u548c\u7c7b\u7ec4\u4ef6\u7684\u533a\u522b\uff09\uff0c\u4f46\u662f\u5728 React \u4e2d\u4e0d\u5b58\u5728\u6307\u4ee4\u6216\u4f9d\u8d56\u6ce8\u5165\u8fd9\u6837\u7684\u672f\u8bed\uff0c\u6240\u4ee5\u5bf9\u6b64\u7684\u7406\u89e3\u8fd8\u5f88\u80a4\u6d45\u3002\uff08\u53ef\u80fd\u53ea\u662f\u56e0\u4e3a\u4e0d\u77e5\u9053\u800c\u5df2\uff0cReact \u4e2d\u4e5f\u53ef\u80fd\u6709\u3002\uff09<br \/>\n\u4e0d\u4ec5\u4ec5\u901a\u8fc7\u9605\u8bfb\u6587\u6863\u6765\u7406\u89e3\uff0c\u6211\u4eec\u8fd8\u5c06\u901a\u8fc7\u5b9e\u9645\u64cd\u4f5c\u6765\u6df1\u5165\u7406\u89e3\u3002<\/p>\n<h1>Angular \u6559\u7a0b<\/h1>\n<p>\u968f\u7740\u5f00\u59cb\u4e00\u4e2a\u57fa\u672c\u7684Angular\u5e94\u7528\u7a0b\u5e8f\uff0c\u6211\u4eec\u5c06\u9075\u5faa\u4e00\u4e2a\u4fee\u6b63\u548c\u6dfb\u52a0\u7684\u65b9\u5f0f\uff0c\u6839\u636e\u793a\u4f8b\u4ee3\u7801\u8fdb\u884c\u5f00\u53d1\u3002\u6211\u4eec\u8fd8\u4f1a\u8fdb\u884c\u4e0eReact\u7684\u6bd4\u8f83\u3002<\/p>\n<h2>\u521b\u5efa\u5546\u54c1\u6e05\u5355<\/h2>\n<h3>1. *ngFor \u6307\u4ee4<\/h3>\n<p>\u5728\u4e0b\u9762\u7684\u4ee3\u7801\u4e2d\uff0c\u6211\u4eec\u4f7f\u7528 *ngFor \u6307\u4ee4\u6765\u663e\u793a\u5546\u54c1\u5217\u8868\u3002<\/p>\n<pre class=\"post-pre\"><code><span class=\"nt\">&lt;h2&gt;<\/span>Products<span class=\"nt\">&lt;\/h2&gt;<\/span>\r\n\r\n<span class=\"nt\">&lt;div<\/span> <span class=\"na\">*ngFor=<\/span><span class=\"s\">\"let product of products\"<\/span><span class=\"nt\">&gt;<\/span>\r\n  <span class=\"nt\">&lt;h3&gt;<\/span>\r\n    {{ product.name }}\r\n  <span class=\"nt\">&lt;\/h3&gt;<\/span>\r\n<span class=\"nt\">&lt;\/div&gt;<\/span>\r\n<\/code><\/pre>\n<p>\u4ea7\u54c1\u662f\u7531products.ts\u6587\u4ef6\u4e2d\u5b9a\u4e49\u7684\u6570\u7ec4\uff0c\u5728product-list.component.ts\u4e2d\u88ab\u5bfc\u5165\u5e76\u4f20\u9012\u5230product-list.component.html\u6a21\u677f\u4e2d\u3002\u5728\u7f16\u5199\u7684\u8fc7\u7a0b\u4e2d\uff0c*ngFor\u53ef\u80fd\u7c7b\u4f3c\u4e8e\u5728React\u4e2d\u4f7f\u7528\u7684map\u51fd\u6570\u3002\uff08\u4ee5\u4e0b\u662fReact\u4ee3\u7801\u793a\u4f8b\uff0c\u672a\u7ecf\u8fc7\u6267\u884c\u786e\u8ba4\uff09<\/p>\n<pre class=\"post-pre\"><code><span class=\"p\">{<\/span><span class=\"nx\">products<\/span><span class=\"p\">.<\/span><span class=\"nx\">map<\/span><span class=\"p\">((<\/span><span class=\"nx\">product<\/span><span class=\"p\">,<\/span> <span class=\"nx\">index<\/span><span class=\"p\">)<\/span> <span class=\"o\">=&gt;<\/span> <span class=\"p\">{<\/span>\r\n  <span class=\"k\">return<\/span> <span class=\"p\">(<\/span>\r\n    <span class=\"o\">&lt;<\/span><span class=\"nx\">div<\/span> <span class=\"nx\">key<\/span><span class=\"o\">=<\/span><span class=\"p\">{<\/span><span class=\"nx\">index<\/span><span class=\"p\">}<\/span><span class=\"o\">&gt;<\/span>\r\n      <span class=\"o\">&lt;<\/span><span class=\"nx\">h3<\/span><span class=\"o\">&gt;<\/span><span class=\"p\">{<\/span><span class=\"nx\">product<\/span><span class=\"p\">.<\/span><span class=\"nx\">name<\/span><span class=\"p\">}<\/span><span class=\"o\">&lt;<\/span><span class=\"sr\">\/h3<\/span><span class=\"err\">&gt;\r\n<\/span>    <span class=\"o\">&lt;<\/span><span class=\"sr\">\/div<\/span><span class=\"err\">&gt;\r\n<\/span>  <span class=\"p\">)<\/span>\r\n<span class=\"p\">})}<\/span>\r\n<\/code><\/pre>\n<p>\u4f5c\u4e3a\u4e00\u4e2a\u4ee5 React \u4e3a\u57fa\u7840\u7684\u4eba\uff0c\u5bf9\u4e8e\u50cf<\/p>\n<div>\n<p>\u8fd9\u6837\u7528&#8221;&#8221;\u62ec\u8d77\u6765\u7684\u5199\u6cd5\u6709\u70b9\u4e0d\u592a\u4e60\u60ef\u3002<\/p>\n<h3>2. \u5c5e\u6027\u7ed1\u5b9a<\/h3>\n<p>\u8fdb\u4e00\u6b65\u5728\u4e0b\u9762\u6dfb\u52a0\u4e00\u4e2aa\u6807\u7b7e\uff0c\u5e76\u4f7f\u7528\u5c5e\u6027\u7ed1\u5b9a[]\u8bed\u6cd5\u4f20\u9012\u5546\u54c1\u540d\u4f5c\u4e3atitle\u5c5e\u6027\u7684\u503c\u3002\u636e\u8bf4\u53ef\u4ee5\u5c06\u5c5e\u6027\u5c01\u88c5\u5728[]\u4e2d\u4f20\u9012\u3002\u786e\u5b9e\uff0c\u5982\u679c\u53bb\u9664\u4e86[]\uff0c\u5c06\u5149\u6807\u653e\u5728\u4e0a\u9762\u4e5f\u770b\u4e0d\u5230\u6587\u5b57\u3002<\/p>\n<pre class=\"post-pre\"><code><span class=\"nt\">&lt;h2&gt;<\/span>Products<span class=\"nt\">&lt;\/h2&gt;<\/span>\r\n\r\n<span class=\"nt\">&lt;div<\/span> <span class=\"na\">*ngFor=<\/span><span class=\"s\">\"let product of products\"<\/span><span class=\"nt\">&gt;<\/span>\r\n  <span class=\"nt\">&lt;h3&gt;<\/span>\r\n    <span class=\"nt\">&lt;a<\/span> <span class=\"na\">[title]=<\/span><span class=\"s\">\"product.name + ' details'\"<\/span><span class=\"nt\">&gt;<\/span>\r\n      {{ product.name }}\r\n    <span class=\"nt\">&lt;\/a&gt;<\/span>\r\n  <span class=\"nt\">&lt;\/h3&gt;<\/span>\r\n<span class=\"nt\">&lt;\/div&gt;<\/span>\r\n<\/code><\/pre>\n<h3>\u6761\u4ef6\u5224\u65ad\u6307\u4ee4 *ngIf<\/h3>\n<p>\u7d27\u63a5\u7740\u4f7f\u7528 *ngIf \u6307\u4ee4\u3002\u53ea\u6709\u5f53 product \u5305\u542b description \u65f6\uff0c\u624d\u4f1a\u663e\u793a p \u6807\u7b7e\u3002<\/p>\n<pre class=\"post-pre\"><code><span class=\"nt\">&lt;h2&gt;<\/span>Products<span class=\"nt\">&lt;\/h2&gt;<\/span>\r\n\r\n<span class=\"nt\">&lt;div<\/span> <span class=\"na\">*ngFor=<\/span><span class=\"s\">\"let product of products\"<\/span><span class=\"nt\">&gt;<\/span>\r\n  <span class=\"nt\">&lt;h3&gt;<\/span>\r\n    <span class=\"nt\">&lt;a<\/span> <span class=\"na\">[title]=<\/span><span class=\"s\">\"product.name + ' details'\"<\/span><span class=\"nt\">&gt;<\/span>\r\n      {{ product.name }}\r\n    <span class=\"nt\">&lt;\/a&gt;<\/span>\r\n  <span class=\"nt\">&lt;\/h3&gt;<\/span>\r\n\r\n  <span class=\"nt\">&lt;p<\/span> <span class=\"na\">*ngIf=<\/span><span class=\"s\">\"product.description\"<\/span><span class=\"nt\">&gt;<\/span>\r\n    Description: {{ product.description }}\r\n  <span class=\"nt\">&lt;\/p&gt;<\/span>\r\n<span class=\"nt\">&lt;\/div&gt;<\/span>\r\n<\/code><\/pre>\n<p>\u8fd9\u53ef\u80fd\u7c7b\u4f3c\u4e8e React \u4e2d\u7684 &amp;&amp; \u548c\u4e09\u5143\u8fd0\u7b97\u7b26\u3002\uff08\u4ee5\u4e0b\u662f React \u4ee3\u7801\u793a\u4f8b\uff0c\u5c1a\u672a\u9a8c\u8bc1\u8fd0\u884c\uff09<\/p>\n<pre class=\"post-pre\"><code><span class=\"p\">{<\/span><span class=\"nx\">product<\/span><span class=\"p\">.<\/span><span class=\"nx\">description<\/span> <span class=\"o\">&amp;&amp;<\/span> <span class=\"o\">&lt;<\/span><span class=\"nx\">p<\/span><span class=\"o\">&gt;<\/span><span class=\"nx\">Description<\/span><span class=\"p\">:<\/span> <span class=\"p\">{<\/span><span class=\"nx\">product<\/span><span class=\"p\">.<\/span><span class=\"nx\">description<\/span><span class=\"p\">}<\/span><span class=\"o\">&lt;<\/span><span class=\"sr\">\/p&gt;<\/span><span class=\"err\">}\r\n<\/span><\/code><\/pre>\n<h3>4. \u4e8b\u4ef6\u7ed1\u5b9a<\/h3>\n<p>\u6700\u540e\uff0c\u5411\u6309\u94ae\u4e2d\u6dfb\u52a0 click \u4e8b\u4ef6\u5e76\u5c06\u5176\u7ed1\u5b9a\u5230 product-list.component.ts \u7684 share() \u65b9\u6cd5\u4e0a\u3002\u5728\u4e8b\u4ef6\u7ed1\u5b9a\u4e2d\uff0c\u9700\u8981\u5728\u4e8b\u4ef6\u5468\u56f4\u4f7f\u7528 ( )\u3002\u5f88\u5bb9\u6613\u6df7\u6dc6\u4e8b\u4ef6\u7ed1\u5b9a\u7684 ( ) \u548c\u5c5e\u6027\u7ed1\u5b9a\u7684 [ ]\u3002<\/p>\n<pre class=\"post-pre\"><code><span class=\"nt\">&lt;h2&gt;<\/span>Products<span class=\"nt\">&lt;\/h2&gt;<\/span>\r\n\r\n<span class=\"nt\">&lt;div<\/span> <span class=\"na\">*ngFor=<\/span><span class=\"s\">\"let product of products\"<\/span><span class=\"nt\">&gt;<\/span>\r\n  <span class=\"nt\">&lt;h3&gt;<\/span>\r\n    <span class=\"nt\">&lt;a<\/span> <span class=\"na\">[title]=<\/span><span class=\"s\">\"product.name + ' details'\"<\/span><span class=\"nt\">&gt;<\/span>\r\n      {{ product.name }}\r\n    <span class=\"nt\">&lt;\/a&gt;<\/span>\r\n  <span class=\"nt\">&lt;\/h3&gt;<\/span>\r\n\r\n  <span class=\"nt\">&lt;p<\/span> <span class=\"na\">*ngIf=<\/span><span class=\"s\">\"product.description\"<\/span><span class=\"nt\">&gt;<\/span>\r\n    Description: {{ product.description }}\r\n  <span class=\"nt\">&lt;\/p&gt;<\/span>\r\n\r\n  <span class=\"nt\">&lt;button<\/span> <span class=\"na\">(click)=<\/span><span class=\"s\">\"share()\"<\/span><span class=\"nt\">&gt;<\/span>\r\n    Share\r\n  <span class=\"nt\">&lt;\/button&gt;<\/span>\r\n<span class=\"nt\">&lt;\/div&gt;<\/span>\r\n<\/code><\/pre>\n<p>\u76ee\u524d\uff0c\u6211\u89ba\u5f97\u4f7f\u7528React\u7684JSX\uff08TSX\uff09\u66f4\u5bb9\u6613\u3002Angular\u660e\u78ba\u5730\u5c07HTML\u6587\u4ef6\u548cTS\u6587\u4ef6\u5206\u958b\uff0c\u56e0\u6b64\u5728\u5c0f\u898f\u6a21\u958b\u767c\u4e2d\uff0c\u4f86\u56de\u5207\u63db\u6587\u4ef6\u53ef\u80fd\u6703\u611f\u5230\u7e41\u7463\uff0c\u4f46\u96a8\u8457\u898f\u6a21\u7684\u64f4\u5927\uff0c\u6bcf\u500b\u6587\u4ef6\u7684\u89d2\u8272\u8b8a\u5f97\u660e\u78ba\uff0c\u53ef\u8b80\u6027\u63d0\u9ad8\u4e14\u4fee\u6539\u4e5f\u66f4\u5bb9\u6613\u3002<\/p>\n<h2>\u5c06\u6570\u636e\u4f20\u9012\u7ed9\u5b50\u7ec4\u4ef6<\/h2>\n<h3>1. \u521b\u5efa\u5b50\u7ec4\u4ef6<\/h3>\n<p>\u5728\u8fd9\u91cc\uff0c\u6211\u4eec\u521b\u5efa\u4e86\u4e00\u4e2a\u4f5c\u4e3a\u5b50\u7ec4\u4ef6\u7684 ProductAlertsComponent\uff0c\u5e76\u4ece\u7236\u7ec4\u4ef6 ProductListComponent \u4e2d\u63a5\u6536\u6570\u636e\u3002\u5728\u7ec4\u4ef6\u521b\u5efa\u65f6\uff0c\u4ee3\u7801\u5982\u4e0b\u6240\u793a\u3002\uff08\u7531\u4e8e\u672c\u6587\u7ae0\u4e2d\u4e0d\u9700\u8981 constructor \u548c ngOnInit\uff0c\u56e0\u6b64\u4ee5\u4e0b\u90e8\u5206\u5c06\u88ab\u7701\u7565\u3002\uff09<\/p>\n<pre class=\"post-pre\"><code><span class=\"k\">import<\/span> <span class=\"p\">{<\/span> <span class=\"nx\">Component<\/span><span class=\"p\">,<\/span> <span class=\"nx\">OnInit<\/span> <span class=\"p\">}<\/span> <span class=\"k\">from<\/span> <span class=\"dl\">'<\/span><span class=\"s1\">@angular\/core<\/span><span class=\"dl\">'<\/span><span class=\"p\">;<\/span>\r\n\r\n<span class=\"p\">@<\/span><span class=\"nd\">Component<\/span><span class=\"p\">({<\/span>\r\n  <span class=\"na\">selector<\/span><span class=\"p\">:<\/span> <span class=\"dl\">'<\/span><span class=\"s1\">app-product-alerts<\/span><span class=\"dl\">'<\/span><span class=\"p\">,<\/span>\r\n  <span class=\"na\">templateUrl<\/span><span class=\"p\">:<\/span> <span class=\"dl\">'<\/span><span class=\"s1\">.\/product-alerts.component.html<\/span><span class=\"dl\">'<\/span><span class=\"p\">,<\/span>\r\n  <span class=\"na\">styleUrls<\/span><span class=\"p\">:<\/span> <span class=\"p\">[<\/span><span class=\"dl\">'<\/span><span class=\"s1\">.\/product-alerts.component.css<\/span><span class=\"dl\">'<\/span><span class=\"p\">]<\/span>\r\n<span class=\"p\">})<\/span>\r\n<span class=\"k\">export<\/span> <span class=\"kd\">class<\/span> <span class=\"nx\">ProductAlertsComponent<\/span> <span class=\"k\">implements<\/span> <span class=\"nx\">OnInit<\/span> <span class=\"p\">{<\/span>\r\n  <span class=\"kd\">constructor<\/span><span class=\"p\">()<\/span> <span class=\"p\">{<\/span> <span class=\"p\">}<\/span>\r\n\r\n  <span class=\"nx\">ngOnInit<\/span><span class=\"p\">()<\/span> <span class=\"p\">{<\/span>\r\n  <span class=\"p\">}<\/span>\r\n\r\n<span class=\"p\">}<\/span>\r\n<\/code><\/pre>\n<p>@Component() \u88c5\u9970\u5668\u7528\u4e8e\u6807\u8bc6\u5b9a\u4e49\u7684\u7c7b\u4e3a\u7ec4\u4ef6\uff0c\u5e76\u6307\u5b9a\u7ec4\u4ef6\u7684\u9009\u62e9\u5668\u3001\u6a21\u677f\u3001\u6837\u5f0f\u7b49\u76f8\u5173\u5143\u6570\u636e\u3002<\/p>\n<h3>\u8f93\u5165\u88c5\u9970\u5668<\/h3>\n<p>\u4e3a\u4e86\u4ece\u7236\u7ec4\u4ef6\u63a5\u6536\u5546\u54c1\u6570\u636e\uff0c\u9996\u5148\u9700\u8981\u4ece @angular\/core \u5bfc\u5165 Input \uff0c\u7136\u540e\u5728\u540d\u4e3a product \u7684\u5c5e\u6027\u4e0a\u4f7f\u7528 @Input() \u88c5\u9970\u5668\u8fdb\u884c\u5b9a\u4e49\u3002\u5728\u8fd9\u91cc\uff0c\u4f7f\u7528 ! \u8868\u793a product \u662f\u975e\u7a7a\u7684\u3002<\/p>\n<pre class=\"post-pre\"><code><span class=\"k\">import<\/span> <span class=\"p\">{<\/span> <span class=\"nx\">Component<\/span><span class=\"p\">,<\/span> <span class=\"nx\">OnInit<\/span> <span class=\"p\">}<\/span> <span class=\"k\">from<\/span> <span class=\"dl\">'<\/span><span class=\"s1\">@angular\/core<\/span><span class=\"dl\">'<\/span><span class=\"p\">;<\/span>\r\n<span class=\"k\">import<\/span> <span class=\"p\">{<\/span> <span class=\"nx\">Input<\/span> <span class=\"p\">}<\/span> <span class=\"k\">from<\/span> <span class=\"dl\">'<\/span><span class=\"s1\">@angular\/core<\/span><span class=\"dl\">'<\/span><span class=\"p\">;<\/span>\r\n<span class=\"k\">import<\/span> <span class=\"p\">{<\/span> <span class=\"nx\">Product<\/span> <span class=\"p\">}<\/span> <span class=\"k\">from<\/span> <span class=\"dl\">'<\/span><span class=\"s1\">..\/products<\/span><span class=\"dl\">'<\/span><span class=\"p\">;<\/span>\r\n\r\n<span class=\"p\">@<\/span><span class=\"nd\">Component<\/span><span class=\"p\">({<\/span>\r\n  <span class=\"na\">selector<\/span><span class=\"p\">:<\/span> <span class=\"dl\">'<\/span><span class=\"s1\">app-product-alerts<\/span><span class=\"dl\">'<\/span><span class=\"p\">,<\/span>\r\n  <span class=\"na\">templateUrl<\/span><span class=\"p\">:<\/span> <span class=\"dl\">'<\/span><span class=\"s1\">.\/product-alerts.component.html<\/span><span class=\"dl\">'<\/span><span class=\"p\">,<\/span>\r\n  <span class=\"na\">styleUrls<\/span><span class=\"p\">:<\/span> <span class=\"p\">[<\/span><span class=\"dl\">'<\/span><span class=\"s1\">.\/product-alerts.component.css<\/span><span class=\"dl\">'<\/span><span class=\"p\">]<\/span>\r\n<span class=\"p\">})<\/span>\r\n<span class=\"k\">export<\/span> <span class=\"kd\">class<\/span> <span class=\"nx\">ProductAlertsComponent<\/span> <span class=\"p\">{<\/span>\r\n  <span class=\"p\">@<\/span><span class=\"nd\">Input<\/span><span class=\"p\">()<\/span> <span class=\"nx\">product<\/span><span class=\"o\">!<\/span><span class=\"p\">:<\/span> <span class=\"nx\">Product<\/span><span class=\"p\">;<\/span>\r\n<span class=\"p\">}<\/span>\r\n<\/code><\/pre>\n<p>\u901a\u8fc7\u4e0a\u8ff0\u65b9\u6cd5\uff0c\u53ef\u4ee5\u4ece\u7236\u7ec4\u4ef6ProductListComponent\u63a5\u6536\u5c5e\u6027\u7684\u503c\u3002\u4e3a\u4e86\u5229\u7528\u4ece\u7236\u7ec4\u4ef6\u63a5\u6536\u5230\u7684\u6570\u636e\uff0c\u6211\u4eec\u53ef\u4ee5\u5728product-alerts.component.html\u4e2d\u521b\u5efa\u4e00\u4e2a\u5f53\u4ef7\u683c\u8d85\u8fc7$700\u65f6\u624d\u4f1a\u663e\u793a\u7684Notify Me\u6309\u94ae\u3002<\/p>\n<pre class=\"post-pre\"><code><span class=\"nt\">&lt;p<\/span> <span class=\"na\">*ngIf=<\/span><span class=\"s\">\"product &amp;&amp; product.price &gt; 700\"<\/span><span class=\"nt\">&gt;<\/span>\r\n  <span class=\"nt\">&lt;button&gt;<\/span>Notify Me<span class=\"nt\">&lt;\/button&gt;<\/span>\r\n<span class=\"nt\">&lt;\/p&gt;<\/span>\r\n<\/code><\/pre>\n<h3>3. \u5728\u6a21\u5757\u4e2d\u58f0\u660e<\/h3>\n<p>\u53ea\u9700\u4e00\u79cd\u9009\u9879\uff1a<br \/>\n\u5728 product-list.component.html \u4e2d\u6dfb\u52a0\u9009\u62e9\u5668 \uff0c\u5c31\u53ef\u4ee5\u5e94\u7528\u4e86\u3002\u7136\u800c\uff0c\u5728\u9884\u89c8\u4e2d\u51fa\u73b0\u4e86\u4ee5\u4e0b\u9519\u8bef\u3002<\/p>\n<div><img decoding=\"async\" class=\"post-images\" title=\"\" src=\"https:\/\/cdn.silicloud.com\/blog-img\/blog\/img\/657d37c337434c4406c73ed4\/39-0.png\" alt=\"product-list-error.png\" \/><\/div>\n<p>\u867d\u7136\u5728\u5b98\u65b9\u6587\u4ef6\u4e2d\u6ca1\u6709\u5199\u660e\uff0c\u4f46\u4f3c\u4e4e\u9700\u8981\u5728 app.module.ts \u6587\u4ef6\u4e2d\u5bfc\u5165\u548c\u5728 declarations \u4e2d\u58f0\u660e\u624d\u80fd\u5e94\u7528\u65b0\u521b\u5efa\u7684\u7ec4\u4ef6\u3002\u7ecf\u8fc7\u8865\u5145\u540e\uff0c\u6210\u529f\u5e94\u7528\u5e76\u663e\u793a\u4e86\u552e\u4ef7\u8d85\u8fc7700\u7f8e\u5143\u7684Phone XL\u7684\u201c\u901a\u77e5\u6211\u201d\u6309\u94ae\u3002<\/p>\n<div><img decoding=\"async\" class=\"post-images\" title=\"\" src=\"https:\/\/cdn.silicloud.com\/blog-img\/blog\/img\/657d37c337434c4406c73ed4\/41-0.png\" alt=\"app-module.png\" \/><\/div>\n<h2>\u5c06\u6570\u636e\u4f20\u9012\u7ed9\u7236\u7ec4\u4ef6<\/h2>\n<h3>1. @\u8f93\u51fa\u88c5\u9970\u5668<\/h3>\n<p>\u4e3a\u4e86\u4f7f\u5b50\u7ec4\u4ef6\u7684\u201cNotify Me\u201d\u6309\u94ae\u8d77\u4f5c\u7528\uff0c\u5b50\u7ec4\u4ef6\u9700\u8981\u901a\u77e5\u7236\u7ec4\u4ef6\u88ab\u70b9\u51fb\u7684\u4e8b\u4ef6\uff0c\u5e76\u4e14\u7236\u7ec4\u4ef6\u9700\u8981\u5bf9\u8be5\u4e8b\u4ef6\u4f5c\u51fa\u54cd\u5e94\u3002\u4e3a\u6b64\uff0c\u5728\u5b50\u7ec4\u4ef6ProductAlertsComponent\u7684product-alerts.component.ts\u6587\u4ef6\u4e2d\uff0c\u6211\u4eec\u4ece@angular\/core\u4e2d\u5bfc\u5165Output\u548cEventEmitter\uff0c\u5e76\u4f7f\u7528@Output()\u88c5\u9970\u5668\u548cEventEmitter()\u7684\u5b9e\u4f8b\u6765\u5b9a\u4e49\u540d\u4e3anotify\u7684\u5c5e\u6027\u3002\u901a\u8fc7\u8fd9\u4e2a\u8bbe\u5b9a\uff0c\u5f53notify\u5c5e\u6027\u7684\u503c\u88ab\u6539\u53d8\u65f6\uff0c\u6211\u4eec\u53ef\u4ee5\u89e6\u53d1\u4e8b\u4ef6\u3002<\/p>\n<pre class=\"post-pre\"><code><span class=\"k\">import<\/span> <span class=\"p\">{<\/span> <span class=\"nx\">Component<\/span><span class=\"p\">,<\/span> <span class=\"nx\">OnInit<\/span> <span class=\"p\">}<\/span> <span class=\"k\">from<\/span> <span class=\"dl\">'<\/span><span class=\"s1\">@angular\/core<\/span><span class=\"dl\">'<\/span><span class=\"p\">;<\/span>\r\n<span class=\"k\">import<\/span> <span class=\"p\">{<\/span> <span class=\"nx\">Input<\/span> <span class=\"p\">}<\/span> <span class=\"k\">from<\/span> <span class=\"dl\">'<\/span><span class=\"s1\">@angular\/core<\/span><span class=\"dl\">'<\/span><span class=\"p\">;<\/span>\r\n<span class=\"k\">import<\/span> <span class=\"p\">{<\/span> <span class=\"nx\">Output<\/span><span class=\"p\">,<\/span> <span class=\"nx\">EventEmitter<\/span> <span class=\"p\">}<\/span> <span class=\"k\">from<\/span> <span class=\"dl\">'<\/span><span class=\"s1\">@angular\/core<\/span><span class=\"dl\">'<\/span><span class=\"p\">;<\/span>\r\n<span class=\"k\">import<\/span> <span class=\"p\">{<\/span> <span class=\"nx\">Product<\/span> <span class=\"p\">}<\/span> <span class=\"k\">from<\/span> <span class=\"dl\">'<\/span><span class=\"s1\">..\/products<\/span><span class=\"dl\">'<\/span><span class=\"p\">;<\/span>\r\n\r\n<span class=\"p\">@<\/span><span class=\"nd\">Component<\/span><span class=\"p\">({<\/span>\r\n  <span class=\"na\">selector<\/span><span class=\"p\">:<\/span> <span class=\"dl\">'<\/span><span class=\"s1\">app-product-alerts<\/span><span class=\"dl\">'<\/span><span class=\"p\">,<\/span>\r\n  <span class=\"na\">templateUrl<\/span><span class=\"p\">:<\/span> <span class=\"dl\">'<\/span><span class=\"s1\">.\/product-alerts.component.html<\/span><span class=\"dl\">'<\/span><span class=\"p\">,<\/span>\r\n  <span class=\"na\">styleUrls<\/span><span class=\"p\">:<\/span> <span class=\"p\">[<\/span><span class=\"dl\">'<\/span><span class=\"s1\">.\/product-alerts.component.css<\/span><span class=\"dl\">'<\/span><span class=\"p\">]<\/span>\r\n<span class=\"p\">})<\/span>\r\n<span class=\"k\">export<\/span> <span class=\"kd\">class<\/span> <span class=\"nx\">ProductAlertsComponent<\/span> <span class=\"p\">{<\/span>\r\n  <span class=\"p\">@<\/span><span class=\"nd\">Input<\/span><span class=\"p\">()<\/span> <span class=\"nx\">product<\/span><span class=\"o\">!<\/span><span class=\"p\">:<\/span> <span class=\"nx\">Product<\/span><span class=\"p\">;<\/span>\r\n  <span class=\"p\">@<\/span><span class=\"nd\">Output<\/span><span class=\"p\">()<\/span> <span class=\"nx\">notify<\/span> <span class=\"o\">=<\/span> <span class=\"k\">new<\/span> <span class=\"nx\">EventEmitter<\/span><span class=\"p\">();<\/span>\r\n<span class=\"p\">}<\/span>\r\n<\/code><\/pre>\n<h3>2. \u5728\u5b50\u7ec4\u4ef6\u4e2d\u89e6\u53d1\u4e8b\u4ef6<\/h3>\n<p>\u901a\u8fc7\u4f7f\u7528\u4e8b\u4ef6\u7ed1\u5b9a\u4fee\u590d\u4ee3\u7801\uff0c\u4ee5\u4fbf\u5728\u6309\u4e0b\u201cNotify Me\u201d\u6309\u94ae\u65f6\u89e6\u53d1\u4e8b\u4ef6\u3002<\/p>\n<pre class=\"post-pre\"><code><span class=\"nt\">&lt;p<\/span> <span class=\"na\">*ngIf=<\/span><span class=\"s\">\"product &amp;&amp; product.price &gt; 700\"<\/span><span class=\"nt\">&gt;<\/span>\r\n  <span class=\"nt\">&lt;button<\/span> <span class=\"na\">(click)=<\/span><span class=\"s\">\"notify.emit()\"<\/span><span class=\"nt\">&gt;<\/span>Notify Me<span class=\"nt\">&lt;\/button&gt;<\/span>\r\n<span class=\"nt\">&lt;\/p&gt;<\/span>\r\n<\/code><\/pre>\n<p>EventEmitter \u7684\u5b9e\u4f8b notify \u901a\u8fc7 emit() \u65b9\u6cd5\u53d1\u51fa\u4e8b\u4ef6\u3002\u8fd9\u4e2a\u65b9\u6cd5\u53ef\u4ee5\u89e6\u53d1\u4e8b\u4ef6\u5e76\u5c06\u6570\u636e\u4f20\u9012\u7ed9\u7236\u7ec4\u4ef6\u3002\uff08\u5728\u8fd9\u4e2a\u4f8b\u5b50\u4e2d\uff0cemit() \u65b9\u6cd5\u6ca1\u6709\u53c2\u6570\uff0c\u53ea\u662f\u89e6\u53d1\u4e86\u4e8b\u4ef6\u800c\u6ca1\u6709\u4f20\u9012\u6570\u636e\u3002\u5728\u672c\u6587\u7684\u6700\u540e\uff0c\u4f5c\u4e3a\u9644\u52a0\u5185\u5bb9\uff0c\u4e5f\u5c1d\u8bd5\u4e86\u4f20\u9012\u6570\u636e\u7684\u60c5\u51b5\u3002\uff09<\/p>\n<h3>3. \u5728\u7236\u7ec4\u4ef6\u4e2d\u5bf9\u4e8b\u4ef6\u8fdb\u884c\u54cd\u5e94\u3002<\/h3>\n<p>\u5f53\u5b50\u7ec4\u4ef6ProductAlertsComponent\u89e6\u53d1\u4e8b\u4ef6\u65f6\uff0c\u5728product-list.component.ts\u6587\u4ef6\u4e2d\u5c06\u7236\u7ec4\u4ef6ProductListComopnent\u7684\u64cd\u4f5c\u5b9a\u4e49\u4e3aonNotify()\u65b9\u6cd5\u3002<\/p>\n<pre class=\"post-pre\"><code><span class=\"k\">export<\/span> <span class=\"kd\">class<\/span> <span class=\"nx\">ProductListComponent<\/span> <span class=\"p\">{<\/span>\r\n  <span class=\"nx\">products<\/span> <span class=\"o\">=<\/span> <span class=\"nx\">products<\/span><span class=\"p\">;<\/span>\r\n\r\n  <span class=\"nx\">share<\/span><span class=\"p\">()<\/span> <span class=\"p\">{<\/span>\r\n    <span class=\"nb\">window<\/span><span class=\"p\">.<\/span><span class=\"nx\">alert<\/span><span class=\"p\">(<\/span><span class=\"dl\">'<\/span><span class=\"s1\">The product has been shared!<\/span><span class=\"dl\">'<\/span><span class=\"p\">);<\/span>\r\n  <span class=\"p\">}<\/span>\r\n\r\n  <span class=\"nx\">onNotify<\/span><span class=\"p\">()<\/span> <span class=\"p\">{<\/span>\r\n    <span class=\"nb\">window<\/span><span class=\"p\">.<\/span><span class=\"nx\">alert<\/span><span class=\"p\">(<\/span><span class=\"dl\">'<\/span><span class=\"s1\">You will be notified when the product goes on sale<\/span><span class=\"dl\">'<\/span><span class=\"p\">);<\/span>\r\n  <span class=\"p\">}<\/span>\r\n<span class=\"p\">}<\/span>\r\n<\/code><\/pre>\n<p>\u5728product-list.component.html\u4e2d\uff0c\u6700\u540e\u4fee\u6539\u5982\u4e0b\uff0c\u4ece\u5b50\u7ec4\u4ef6\u63a5\u6536\u6570\u636e\u3002\u628aproduct\u4f20\u9012\u7ed9\u5b50\u7ec4\u4ef6\uff0c\u5e76\u63a5\u6536\u6765\u81ea\u5b50\u7ec4\u4ef6\u7684notify\u3002<\/p>\n<pre class=\"post-pre\"><code><span class=\"nt\">&lt;h2&gt;<\/span>Products<span class=\"nt\">&lt;\/h2&gt;<\/span>\r\n\r\n<span class=\"nt\">&lt;div<\/span> <span class=\"na\">*ngFor=<\/span><span class=\"s\">\"let product of products\"<\/span><span class=\"nt\">&gt;<\/span>\r\n  <span class=\"nt\">&lt;h3&gt;<\/span>\r\n    <span class=\"nt\">&lt;a<\/span> <span class=\"na\">[title]=<\/span><span class=\"s\">\"product.name + ' details'\"<\/span><span class=\"nt\">&gt;<\/span>\r\n      {{ product.name }}\r\n    <span class=\"nt\">&lt;\/a&gt;<\/span>\r\n  <span class=\"nt\">&lt;\/h3&gt;<\/span>\r\n\r\n  <span class=\"nt\">&lt;p<\/span> <span class=\"na\">*ngIf=<\/span><span class=\"s\">\"product.description\"<\/span><span class=\"nt\">&gt;<\/span>\r\n    Description: {{ product.description }}\r\n  <span class=\"nt\">&lt;\/p&gt;<\/span>\r\n\r\n  <span class=\"nt\">&lt;button<\/span> <span class=\"na\">(click)=<\/span><span class=\"s\">\"share()\"<\/span><span class=\"nt\">&gt;<\/span>\r\n    Share\r\n  <span class=\"nt\">&lt;\/button&gt;<\/span>\r\n\r\n  <span class=\"nt\">&lt;app-product-alerts<\/span> <span class=\"na\">[product]=<\/span><span class=\"s\">\"product\"<\/span> <span class=\"na\">(notify)=<\/span><span class=\"s\">\"onNotify()\"<\/span><span class=\"nt\">&gt;<\/span>\r\n  <span class=\"nt\">&lt;\/app-product-alerts&gt;<\/span>\r\n<span class=\"nt\">&lt;\/div&gt;<\/span>\r\n<\/code><\/pre>\n<h3>4. \uff08\u9644\u8d60\u54c1\uff09EventEmitter()<\/h3>\n<p>\u867d\u7136\u5b98\u65b9\u6587\u4ef6\u5230\u8fd9\u91cc\u5c31\u7ed3\u675f\u4e86\uff0c\u4f46\u4e0d\u4ec5\u4ec5\u53ef\u4ee5\u901a\u8fc7EventEmitter()\u89e6\u53d1\u4e8b\u4ef6\uff0c\u8fd8\u53ef\u4ee5\u540c\u65f6\u4f20\u8f93\u6570\u636e\u3002\u4e3a\u4e86\u5c06\u4ea7\u54c1\u540d\u79f0\u4f5c\u4e3a\u901a\u77e5\u5185\u5bb9\u66f4\u6539\u5e76\u901a\u77e5\uff0c\u6211\u5bf9Notify Me\u6309\u94ae\u505a\u4e86\u4ee5\u4e0b\u4e09\u4e2a\u4fee\u6b63\u3002<\/p>\n<ul class=\"post-ul\">notify.emit() \u306b\u3066 product.name \u3092\u8ee2\u9001<\/ul>\n<pre class=\"post-pre\"><code><span class=\"nt\">&lt;p<\/span> <span class=\"na\">*ngIf=<\/span><span class=\"s\">\"product &amp;&amp; product.price &gt; 700\"<\/span><span class=\"nt\">&gt;<\/span>\r\n  <span class=\"nt\">&lt;button<\/span> <span class=\"na\">(click)=<\/span><span class=\"s\">\"notify.emit(product.name)\"<\/span><span class=\"nt\">&gt;<\/span>Notify Me<span class=\"nt\">&lt;\/button&gt;<\/span>\r\n<span class=\"nt\">&lt;\/p&gt;<\/span>\r\n<\/code><\/pre>\n<ul class=\"post-ul\">onNitify() \u3067 name \u3092\u5f15\u6570\u306b\u3068\u308a\u3001\u30a2\u30e9\u30fc\u30c8\u306b\u8868\u793a<\/ul>\n<pre class=\"post-pre\"><code>  <span class=\"p\">...<\/span>\r\n  <span class=\"nx\">onNotify<\/span><span class=\"p\">(<\/span><span class=\"nx\">name<\/span><span class=\"p\">:<\/span> <span class=\"kr\">string<\/span><span class=\"p\">)<\/span> <span class=\"p\">{<\/span>\r\n    <span class=\"nb\">window<\/span><span class=\"p\">.<\/span><span class=\"nx\">alert<\/span><span class=\"p\">(<\/span>\r\n      <span class=\"dl\">'<\/span><span class=\"s1\">Your will be notified when <\/span><span class=\"dl\">'<\/span> <span class=\"o\">+<\/span> <span class=\"nx\">name<\/span> <span class=\"o\">+<\/span> <span class=\"dl\">'<\/span><span class=\"s1\"> product goes on sale<\/span><span class=\"dl\">'<\/span>\r\n    <span class=\"p\">);<\/span>\r\n  <span class=\"p\">}<\/span>\r\n<span class=\"p\">}<\/span>\r\n<\/code><\/pre>\n<ul class=\"post-ul\">onNotify() \u30e1\u30bd\u30c3\u30c9\u306b\u5bfe\u3057\u3066 $event \u3092\u6e21\u3059<\/ul>\n<pre class=\"post-pre\"><code>  ...\r\n  <span class=\"nt\">&lt;app-product-alerts<\/span> <span class=\"na\">[product]=<\/span><span class=\"s\">\"product\"<\/span> <span class=\"na\">(notify)=<\/span><span class=\"s\">\"onNotify($event)\"<\/span><span class=\"nt\">&gt;<\/span>\r\n  <span class=\"nt\">&lt;\/app-product-alerts&gt;<\/span>\r\n<span class=\"nt\">&lt;\/div&gt;<\/span>\r\n<\/code><\/pre>\n<p>\u66f4\u6539\u5f8c\u7684\u7ed3\u679c\u5982\u4e0b\u3002\u70b9\u51fbPhone XL\u7684&#8221;\u901a\u77e5\u6211&#8221;\u6309\u94ae\uff0c\u786e\u8ba4\u80fd\u6536\u5230\u5546\u54c1\u540d\u79f0\u7684\u901a\u77e5\u3002<\/p>\n<div><img decoding=\"async\" class=\"post-images\" title=\"\" src=\"https:\/\/cdn.silicloud.com\/blog-img\/blog\/img\/657d37c337434c4406c73ed4\/64-0.png\" alt=\"EventEmitter.png\" \/><\/div>\n<h1>\u6700\u540e<\/h1>\n<p>\u6211\u6309\u7167\u5b98\u65b9\u6587\u6863\u5b66\u4e60\u4e86Angular\u3002\u4e0eReact\u76f8\u6bd4\uff0c\u53d1\u73b0\u4e86\u8bb8\u591a\u4e0d\u540c\u4e4b\u5904\uff0c\u611f\u5230\u5f88\u6709\u8da3\uff0c\u540c\u65f6\u4e5f\u5bf9\u5176\u4ed6\u529f\u80fd\u5f88\u611f\u5174\u8da3\uff0c\u6240\u4ee5\u6211\u6253\u7b97\u7ee7\u7eed\u5b66\u4e0b\u53bb\u3002\u5728React\u4e2d\uff0c\u6211\u4f7f\u7528Hooks\u5728\u6240\u6709\u51fd\u6570\u7ec4\u4ef6\u4e2d\u8fdb\u884c\u7f16\u5199\uff0c\u6240\u4ee5\u6211\u4e5f\u60f3\u501f\u6b64\u673a\u4f1a\u8fdb\u4e00\u6b65\u6df1\u5165\u7406\u89e3\u5173\u4e8e\u7c7b\u7684\u6982\u5ff5\uff08\u5f53\u7136\u8fd8\u6709TypeScript\uff09\u3002<\/p>\n<\/div>\n","protected":false},"excerpt":{"rendered":"<p>\u9996\u5148 \u6211\u5bf9React\u6709\u4e86\u4e00\u5b9a\u7684\u7406\u89e3\uff0c\u4f46\u56e0\u4e3a\u5de5\u4f5c\u9700\u8981\u7406\u89e3Angular\u7684\u4ee3\u7801\uff0c\u6240\u4ee5\u51b3\u5b9a\u5b66\u4e60\u4e00\u4e0b\u3002Angular\u662f [&hellip;]<\/p>\n","protected":false},"author":5,"featured_media":0,"comment_status":"closed","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[1],"tags":[],"class_list":["post-38982","post","type-post","status-publish","format-standard","hentry","category-uncategorized"],"yoast_head":"<!-- This site is optimized with the Yoast SEO Premium plugin v21.5 (Yoast SEO v21.5) - https:\/\/yoast.com\/wordpress\/plugins\/seo\/ -->\n<title>\u53c2\u7167Angular\u516c\u5f0f\u6587\u4ef6\u4ee5\u7406\u89e3Angular\uff1a\u2460 - Blog - Silicon Cloud<\/title>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/www.silicloud.com\/zh\/blog\/\u53c2\u7167angular\u516c\u5f0f\u6587\u4ef6\u4ee5\u7406\u89e3angular\uff1a\u2460\/\" \/>\n<meta property=\"og:locale\" content=\"zh_CN\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta 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