{"id":39452,"date":"2023-06-04T00:39:25","date_gmt":"2023-03-01T23:20:52","guid":{"rendered":"https:\/\/www.silicloud.com\/zh\/blog\/%e4%b8%83%ef%bc%8e%e5%88%a9%e7%94%a8-angular-%e7%9a%84%e5%93%8d%e5%ba%94%e5%bc%8f%e8%a1%a8%e5%8d%95%ef%bc%8c%e8%ae%a9%e9%9b%b6%e5%9f%ba%e7%a1%80%e7%94%a8%e6%88%b7%e4%b8%80%e4%b8%aa%e6%9c%88%e5%86%85\/"},"modified":"2024-04-30T07:13:57","modified_gmt":"2024-04-29T23:13:57","slug":"%e4%b8%83%ef%bc%8e%e5%88%a9%e7%94%a8-angular-%e7%9a%84%e5%93%8d%e5%ba%94%e5%bc%8f%e8%a1%a8%e5%8d%95%ef%bc%8c%e8%ae%a9%e9%9b%b6%e5%9f%ba%e7%a1%80%e7%94%a8%e6%88%b7%e4%b8%80%e4%b8%aa%e6%9c%88%e5%86%85","status":"publish","type":"post","link":"https:\/\/www.silicloud.com\/zh\/blog\/%e4%b8%83%ef%bc%8e%e5%88%a9%e7%94%a8-angular-%e7%9a%84%e5%93%8d%e5%ba%94%e5%bc%8f%e8%a1%a8%e5%8d%95%ef%bc%8c%e8%ae%a9%e9%9b%b6%e5%9f%ba%e7%a1%80%e7%94%a8%e6%88%b7%e4%b8%80%e4%b8%aa%e6%9c%88%e5%86%85\/","title":{"rendered":"\u4e03\uff0e\u5229\u7528 Angular \u7684\u54cd\u5e94\u5f0f\u8868\u5355\uff0c\u8ba9\u96f6\u57fa\u7840\u7528\u6237\u4e00\u4e2a\u6708\u5185\u80fd\u591f\u5236\u4f5c\u670d\u52a1"},"content":{"rendered":"<p>\u4e0a\u4e00\u6b21\uff0c\u901a\u8fc7\u5b9e\u8df5\u8fd0\u7528\u4e4b\u524d\u6240\u5b66\u7684\u77e5\u8bc6\uff0c\u6211\u52a0\u6df1\u4e86\u5bf9Angular\u7684\u4e86\u89e3\u3002<\/p>\n<p>\u5728\u672c\u6587\u4e2d\uff0c\u6211\u4eec\u5c06\u5b66\u4e60\u5982\u4f55\u4f7f\u7528\u54cd\u5e94\u5f0f\u8868\u5355\u6765\u7f16\u5199\u4e0d\u4f7f\u7528 [ngModel] \u7684\u8868\u5355\u3002<\/p>\n<ul class=\"post-ul\">\n<li style=\"list-style-type: none;\">\n<ul class=\"post-ul\">ReactiveForm\u306e\u57fa\u790e<\/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\">[(ngModel)] \u3092FormGroup, FormControl\u3067\u66f8\u304d\u63db\u3048\u308b<\/ul>\n<\/li>\n<\/ul>\n<p>&nbsp;<\/p>\n<ul class=\"post-ul\">Form\u306e\u9001\u4fe1\u306b\u3088\u308b\u4fdd\u5b58\u51e6\u7406<\/ul>\n<p>\u6211\u4f1a\u7ee7\u7eed\u505a\u4e0b\u53bb\u3002<\/p>\n<h2>\u8fd9\u7bc7\u6587\u7ae0\u7684\u6e90\u4ee3\u7801<\/h2>\n<p>https:\/\/github.com\/seteen\/AngularGuides\/tree\/Introduction07 \u7684\u539f\u6587\u9700\u8981\u7ffb\u8bd1\u6210\u4e2d\u6587<\/p>\n<h2>Angular\u4e2d\u8868\u5355\u5143\u7d20\u7684\u57fa\u7840<\/h2>\n<p>\u76ee\u524d\u7684 product-edit.component.ts \u4f7f\u7528 [(ngModel)] \u5c06\u8868\u5355\u7684\u6bcf\u4e2a\u5143\u7d20\u4e0e\u4ea7\u54c1\u7684\u5404\u4e2a\u8981\u7d20\u5bf9\u5e94\u8d77\u6765\u3002<\/p>\n<p>\u5728Angular\u4e2d\uff0c\u4e3a\u4e86\u5904\u7406\u4e0e\u8868\u5355\u76f8\u5173\u8054\u7684\u64cd\u4f5c\uff0c\u63d0\u4f9b\u4e86\u4e13\u95e8\u7684\u7c7b\u8fdb\u884c\u5904\u7406\u3002<\/p>\n<p>\u5173\u4e8e\u6bcf\u4e00\u4e2a\uff0c\u6211\u5c06\u9010\u6b65\u89e3\u91ca\u3002<\/p>\n<div>\n<div class=\"post-table\">\u30af\u30e9\u30b9\u5f79\u5272FormControl<code>&lt;input&gt;<\/code> \u306a\u3069\u306e\u5165\u529b\u8981\u7d20\u4e00\u3064\u306b\u5bfe\u5fdc\u3059\u308b\u30af\u30e9\u30b9FormGroup<code>&lt;form&gt;<\/code> \u8981\u7d20\u306b\u5bfe\u5fdc\u3059\u308b\u30af\u30e9\u30b9FormBuilderFormGroup, FormControl \u3092\u4f5c\u6210\u3059\u308b\u30af\u30e9\u30b9<\/div>\n<\/div>\n<h3>\u4e0e\u4f7f\u7528 [(ngModel)] \u7684\u793a\u4f8b\u76f8\u5bf9\u5e94<\/h3>\n<p>\u8003\u8651\u5230\u5f53\u524d\u7684product-edit.component.ts\uff0c\u5bf9\u5e94\u5173\u7cfb\u5982\u4e0b\u6240\u793a\u3002<\/p>\n<div>\n<div class=\"post-table\">\u30af\u30e9\u30b9\u5f79\u5272product-edit.componentFormControl<code>&lt;input&gt;<\/code> \u306a\u3069\u306e\u5165\u529b\u8981\u7d20\u4e00\u3064\u306b\u5bfe\u5fdc\u3059\u308b\u30af\u30e9\u30b9<code>product<\/code>FormGroup<code>&lt;form&gt;<\/code> \u8981\u7d20\u306b\u5bfe\u5fdc\u3059\u308b\u30af\u30e9\u30b9<code>product.name<\/code>FormBuilderFormGroup, FormControl \u3092\u4f5c\u6210\u3059\u308b\u30af\u30e9\u30b9\u306a\u3057<\/div>\n<\/div>\n<h2>\u5c06 [(ngModel)] \u66ff\u6362\u4e3a FormGroup\u3001FormControl \u5199\u6cd5<\/h2>\n<p>\u9996\u5148\uff0c\u6211\u4eec\u4f1a\u4eceTypescript\u5f00\u59cb\u8fdb\u884c\u91cd\u5199\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\">Product<\/span> <span class=\"p\">}<\/span> <span class=\"k\">from<\/span> <span class=\"dl\">'<\/span><span class=\"s1\">..\/..\/shared\/models\/product<\/span><span class=\"dl\">'<\/span><span class=\"p\">;<\/span>\r\n<span class=\"k\">import<\/span> <span class=\"p\">{<\/span> <span class=\"nx\">ProductService<\/span> <span class=\"p\">}<\/span> <span class=\"k\">from<\/span> <span class=\"dl\">'<\/span><span class=\"s1\">..\/..\/shared\/services\/product.service<\/span><span class=\"dl\">'<\/span><span class=\"p\">;<\/span>\r\n<span class=\"k\">import<\/span> <span class=\"p\">{<\/span> <span class=\"nx\">ActivatedRoute<\/span><span class=\"p\">,<\/span> <span class=\"nx\">Params<\/span><span class=\"p\">,<\/span> <span class=\"nx\">Router<\/span> <span class=\"p\">}<\/span> <span class=\"k\">from<\/span> <span class=\"dl\">'<\/span><span class=\"s1\">@angular\/router<\/span><span class=\"dl\">'<\/span><span class=\"p\">;<\/span>\r\n<span class=\"k\">import<\/span> <span class=\"p\">{<\/span> <span class=\"nx\">FormBuilder<\/span> <span class=\"p\">}<\/span> <span class=\"k\">from<\/span> <span class=\"dl\">'<\/span><span class=\"s1\">@angular\/forms<\/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-edit<\/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-edit.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-edit.component.scss<\/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\">ProductEditComponent<\/span> <span class=\"k\">implements<\/span> <span class=\"nx\">OnInit<\/span> <span class=\"p\">{<\/span>\r\n  <span class=\"nx\">productForm<\/span> <span class=\"o\">=<\/span> <span class=\"k\">this<\/span><span class=\"p\">.<\/span><span class=\"nx\">fb<\/span><span class=\"p\">.<\/span><span class=\"nx\">group<\/span><span class=\"p\">({<\/span> <span class=\"c1\">\/\/ &lt;= \u5909\u66f4<\/span>\r\n    <span class=\"na\">id<\/span><span class=\"p\">:<\/span> <span class=\"p\">[<\/span><span class=\"dl\">''<\/span><span class=\"p\">],<\/span>\r\n    <span class=\"na\">name<\/span><span class=\"p\">:<\/span> <span class=\"p\">[<\/span><span class=\"dl\">''<\/span><span class=\"p\">],<\/span>\r\n    <span class=\"na\">price<\/span><span class=\"p\">:<\/span> <span class=\"p\">[<\/span><span class=\"dl\">''<\/span><span class=\"p\">],<\/span>\r\n    <span class=\"na\">description<\/span><span class=\"p\">:<\/span> <span class=\"p\">[<\/span><span class=\"dl\">''<\/span><span class=\"p\">],<\/span>\r\n  <span class=\"p\">});<\/span>\r\n\r\n  <span class=\"kd\">constructor<\/span><span class=\"p\">(<\/span>\r\n    <span class=\"k\">private<\/span> <span class=\"nx\">route<\/span><span class=\"p\">:<\/span> <span class=\"nx\">ActivatedRoute<\/span><span class=\"p\">,<\/span>\r\n    <span class=\"k\">private<\/span> <span class=\"nx\">router<\/span><span class=\"p\">:<\/span> <span class=\"nx\">Router<\/span><span class=\"p\">,<\/span>\r\n    <span class=\"k\">private<\/span> <span class=\"nx\">fb<\/span><span class=\"p\">:<\/span> <span class=\"nx\">FormBuilder<\/span><span class=\"p\">,<\/span> <span class=\"c1\">\/\/ &lt;= \u8ffd\u52a0<\/span>\r\n    <span class=\"k\">private<\/span> <span class=\"nx\">productService<\/span><span class=\"p\">:<\/span> <span class=\"nx\">ProductService<\/span><span class=\"p\">,<\/span>\r\n  <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=\"k\">this<\/span><span class=\"p\">.<\/span><span class=\"nx\">route<\/span><span class=\"p\">.<\/span><span class=\"nx\">params<\/span><span class=\"p\">.<\/span><span class=\"nx\">subscribe<\/span><span class=\"p\">((<\/span><span class=\"nx\">params<\/span><span class=\"p\">:<\/span> <span class=\"nx\">Params<\/span><span class=\"p\">)<\/span> <span class=\"o\">=&gt;<\/span> <span class=\"p\">{<\/span>\r\n      <span class=\"k\">this<\/span><span class=\"p\">.<\/span><span class=\"nx\">productService<\/span><span class=\"p\">.<\/span><span class=\"kd\">get<\/span><span class=\"p\">(<\/span><span class=\"nx\">params<\/span><span class=\"p\">[<\/span><span class=\"dl\">'<\/span><span class=\"s1\">id<\/span><span class=\"dl\">'<\/span><span class=\"p\">]).<\/span><span class=\"nx\">subscribe<\/span><span class=\"p\">((<\/span><span class=\"na\">product<\/span><span class=\"p\">:<\/span> <span class=\"nx\">Product<\/span><span class=\"p\">)<\/span> <span class=\"o\">=&gt;<\/span> <span class=\"p\">{<\/span>\r\n        <span class=\"k\">this<\/span><span class=\"p\">.<\/span><span class=\"nx\">productForm<\/span><span class=\"p\">.<\/span><span class=\"nx\">setValue<\/span><span class=\"p\">({<\/span> <span class=\"c1\">\/\/ &lt;= \u5909\u66f4<\/span>\r\n          <span class=\"na\">id<\/span><span class=\"p\">:<\/span> <span class=\"nx\">product<\/span><span class=\"p\">.<\/span><span class=\"nx\">id<\/span><span class=\"p\">,<\/span>\r\n          <span class=\"na\">name<\/span><span class=\"p\">:<\/span> <span class=\"nx\">product<\/span><span class=\"p\">.<\/span><span class=\"nx\">name<\/span><span class=\"p\">,<\/span>\r\n          <span class=\"na\">price<\/span><span class=\"p\">:<\/span> <span class=\"nx\">product<\/span><span class=\"p\">.<\/span><span class=\"nx\">price<\/span><span class=\"p\">,<\/span>\r\n          <span class=\"na\">description<\/span><span class=\"p\">:<\/span> <span class=\"nx\">product<\/span><span class=\"p\">.<\/span><span class=\"nx\">description<\/span><span class=\"p\">,<\/span>\r\n        <span class=\"p\">});<\/span>\r\n      <span class=\"p\">});<\/span>\r\n    <span class=\"p\">});<\/span>\r\n  <span class=\"p\">}<\/span>\r\n\r\n  <span class=\"nx\">saveProduct<\/span><span class=\"p\">():<\/span> <span class=\"k\">void<\/span> <span class=\"p\">{<\/span>\r\n    <span class=\"k\">this<\/span><span class=\"p\">.<\/span><span class=\"nx\">router<\/span><span class=\"p\">.<\/span><span class=\"nx\">navigate<\/span><span class=\"p\">([<\/span><span class=\"dl\">'<\/span><span class=\"s1\">\/products<\/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<h3>\u8bb2\u89e3<\/h3>\n<h4>\u6784\u9020\u51fd\u6570\u90e8\u5206<\/h4>\n<p>\u5728\u4ee3\u7801\u4e2d\u6dfb\u52a0\u4e86FormBuilder\u3002<\/p>\n<h4>\u53d8\u91cf\u5b9a\u4e49\u90e8\u5206<\/h4>\n<p>\u6211\u5220\u9664\u4e86product\u53d8\u91cf\uff0c\u5e76\u6dfb\u52a0\u4e86productForm\u53d8\u91cf\u3002<\/p>\n<p>\u4ea7\u54c1\u7684\u5f62\u5f0f\u662fFormGroup\u3002\u4f7f\u7528this.fb.group()\u51fd\u6570\u521b\u5efa\u4e00\u4e2aFormGroup\u3002<\/p>\n<p>\u8fd9\u4e2a\u65b9\u6cd5\u7684\u53c2\u6570\u662f\u4f5c\u4e3a\u8868\u5355\u5143\u7d20\u503c\u7684\u952e\u548c\u521d\u59cb\u503c\uff08\u6570\u7ec4\u7684\u5f62\u5f0f\u662f\u4e3a\u4e86\u80fd\u591f\u5728\u7b2c\u4e8c\u4e2a\u4ee5\u540e\u7684\u4f4d\u7f6e\u653e\u5165\u9a8c\u8bc1\u5668\uff0c\u8fd9\u5c06\u5728\u540e\u9762\u89e3\u91ca\uff09\u3002<\/p>\n<p>\u6362\u53e5\u8bdd\u8bf4\uff0c\u8fd9\u91cc\u6211\u4eec\u6b63\u5728\u521b\u5efa\u4e00\u4e2a\u5177\u6709\u4e0e product \u76f8\u540c\u7684\u5143\u7d20\uff08id\u3001name\u3001price\u3001description\uff09\u7684 FormGroup\u3002<\/p>\n<p>\u53e6\u5916\uff0c\u6bcf\u4e2a\u540d\u5b57\uff1a[&#8221;] \u662f\u4e00\u4e2a\u8868\u5355\u63a7\u4ef6\u3002<\/p>\n<p>\u6211\u4f1a\u5728\u4e0b\u9762\u5199\u4e0b\u4e0d\u4f7f\u7528FormBuilder\u5c31\u53ef\u4ee5\u5b9e\u73b0\u7c7b\u4f3c\u529f\u80fd\u7684\u4ee3\u7801\uff0c\u56e0\u4e3a\u4f7f\u7528FormBuilder\u4e0d\u592a\u5bb9\u6613\u7406\u89e3\u54ea\u4e9b\u5143\u7d20\u5c5e\u4e8e\u54ea\u4e2a\u7c7b\u3002<\/p>\n<pre class=\"post-pre\"><code><span class=\"nx\">productForm<\/span> <span class=\"o\">=<\/span> <span class=\"k\">new<\/span> <span class=\"nx\">FormGroup<\/span><span class=\"p\">({<\/span>\r\n  <span class=\"na\">id<\/span><span class=\"p\">:<\/span> <span class=\"k\">new<\/span> <span class=\"nx\">FormControl<\/span><span class=\"p\">(<\/span><span class=\"dl\">''<\/span><span class=\"p\">),<\/span>\r\n  <span class=\"na\">name<\/span><span class=\"p\">:<\/span> <span class=\"k\">new<\/span> <span class=\"nx\">FormControl<\/span><span class=\"p\">(<\/span><span class=\"dl\">''<\/span><span class=\"p\">),<\/span>\r\n  <span class=\"na\">price<\/span><span class=\"p\">:<\/span> <span class=\"k\">new<\/span> <span class=\"nx\">FormControl<\/span><span class=\"p\">(<\/span><span class=\"dl\">''<\/span><span class=\"p\">),<\/span>\r\n  <span class=\"na\">description<\/span><span class=\"p\">:<\/span> <span class=\"k\">new<\/span> <span class=\"nx\">FormControl<\/span><span class=\"p\">(<\/span><span class=\"dl\">''<\/span><span class=\"p\">),<\/span>\r\n<span class=\"p\">});<\/span>\r\n<\/code><\/pre>\n<h4>ngOnInit \u90e8\u5206<\/h4>\n<p>\u5728\u4ece\u4ea7\u54c1\u670d\u52a1\u4e2d\u53d6\u51fa\u4ea7\u54c1\u540e\uff0c\u5c06\u5f53\u524d\u4ea7\u54c1\u7684\u503c\u653e\u5165\u4ea7\u54c1\u8868\u5355\u4e2d\u3002<\/p>\n<h3>\u4f7f\u7528 HTML \u4e2d\u7684 FormGroup\u3001FormControl<\/h3>\n<pre class=\"post-pre\"><code><span class=\"nt\">&lt;div<\/span> <span class=\"na\">class=<\/span><span class=\"s\">\"container\"<\/span><span class=\"nt\">&gt;<\/span>\r\n  <span class=\"nt\">&lt;div<\/span> <span class=\"na\">class=<\/span><span class=\"s\">\"title\"<\/span><span class=\"nt\">&gt;<\/span>\u5546\u54c1\u7de8\u96c6<span class=\"nt\">&lt;\/div&gt;<\/span>\r\n  <span class=\"nt\">&lt;form<\/span> <span class=\"na\">(ngSubmit)=<\/span><span class=\"s\">\"saveProduct()\"<\/span> <span class=\"na\">[formGroup]=<\/span><span class=\"s\">\"productForm\"<\/span><span class=\"nt\">&gt;<\/span>\r\n    <span class=\"nt\">&lt;div<\/span> <span class=\"na\">class=<\/span><span class=\"s\">\"edit-form\"<\/span><span class=\"nt\">&gt;<\/span>\r\n      <span class=\"nt\">&lt;div<\/span> <span class=\"na\">class=<\/span><span class=\"s\">\"edit-line\"<\/span><span class=\"nt\">&gt;<\/span>\r\n        <span class=\"nt\">&lt;label&gt;<\/span>ID<span class=\"nt\">&lt;\/label&gt;<\/span>\r\n        <span class=\"nt\">&lt;span&gt;<\/span>{{ productForm.controls.id.value }}<span class=\"nt\">&lt;\/span&gt;<\/span>\r\n      <span class=\"nt\">&lt;\/div&gt;<\/span>\r\n      <span class=\"nt\">&lt;div<\/span> <span class=\"na\">class=<\/span><span class=\"s\">\"edit-line\"<\/span><span class=\"nt\">&gt;<\/span>\r\n        <span class=\"nt\">&lt;label&gt;<\/span>\u540d\u524d<span class=\"nt\">&lt;\/label&gt;<\/span>\r\n        <span class=\"nt\">&lt;input<\/span> <span class=\"na\">type=<\/span><span class=\"s\">\"text\"<\/span> <span class=\"na\">formControlName=<\/span><span class=\"s\">\"name\"<\/span> <span class=\"na\">required<\/span><span class=\"nt\">&gt;<\/span>\r\n      <span class=\"nt\">&lt;\/div&gt;<\/span>\r\n      <span class=\"nt\">&lt;div<\/span> <span class=\"na\">class=<\/span><span class=\"s\">\"edit-line\"<\/span><span class=\"nt\">&gt;<\/span>\r\n        <span class=\"nt\">&lt;label&gt;<\/span>\u4fa1\u683c<span class=\"nt\">&lt;\/label&gt;<\/span>\r\n        <span class=\"nt\">&lt;input<\/span> <span class=\"na\">type=<\/span><span class=\"s\">\"number\"<\/span> <span class=\"na\">formControlName=<\/span><span class=\"s\">\"price\"<\/span><span class=\"nt\">&gt;<\/span>\r\n      <span class=\"nt\">&lt;\/div&gt;<\/span>\r\n      <span class=\"nt\">&lt;div<\/span> <span class=\"na\">class=<\/span><span class=\"s\">\"edit-line\"<\/span><span class=\"nt\">&gt;<\/span>\r\n        <span class=\"nt\">&lt;label&gt;<\/span>\u8aac\u660e<span class=\"nt\">&lt;\/label&gt;<\/span>\r\n        <span class=\"nt\">&lt;input<\/span> <span class=\"na\">type=<\/span><span class=\"s\">\"text\"<\/span> <span class=\"na\">formControlName=<\/span><span class=\"s\">\"description\"<\/span><span class=\"nt\">&gt;<\/span>\r\n      <span class=\"nt\">&lt;\/div&gt;<\/span>\r\n    <span class=\"nt\">&lt;\/div&gt;<\/span>\r\n    <span class=\"nt\">&lt;div<\/span> <span class=\"na\">class=<\/span><span class=\"s\">\"footer\"<\/span><span class=\"nt\">&gt;<\/span>\r\n      <span class=\"nt\">&lt;span<\/span> <span class=\"na\">class=<\/span><span class=\"s\">\"button white\"<\/span> <span class=\"na\">[routerLink]=<\/span><span class=\"s\">\"['\/products', productForm.controls.id.value]\"<\/span><span class=\"nt\">&gt;<\/span>\u30ad\u30e3\u30f3\u30bb\u30eb<span class=\"nt\">&lt;\/span&gt;<\/span>\r\n      <span class=\"nt\">&lt;button<\/span> <span class=\"na\">class=<\/span><span class=\"s\">\"button black\"<\/span><span class=\"nt\">&gt;<\/span>\u4fdd\u5b58<span class=\"nt\">&lt;\/button&gt;<\/span>\r\n    <span class=\"nt\">&lt;\/div&gt;<\/span>\r\n  <span class=\"nt\">&lt;\/form&gt;<\/span>\r\n<span class=\"nt\">&lt;\/div&gt;<\/span>\r\n<\/code><\/pre>\n<p>\u901a\u8fc7\u5728<\/p>\n<form>\u5143\u7d20\u4e0a\u4f7f\u7528 [formGroup] \u5c5e\u6027\u6765\u5173\u8054 productForm \u8868\u5355\u3002<\/p>\n<p>\u53e6\u5916\uff0c\u6211\u5011\u5f9e\u6bcf\u500b <input type=\"text\" \/> \u5143\u7d20\u4e2d\u522a\u9664\u4e86 [(ngModel)]\uff0c\u4e26\u4e14\u6dfb\u52a0\u4e86 formControlName\uff0c\u4ee5\u5c07\u5176\u8207 productForm \u7684\u6bcf\u500b\u5143\u7d20\u95dc\u806f\u8d77\u4f86\u3002<\/p>\n<p>\u7531\u4e8eID\u662f\u4e0d\u5141\u8bb8\u7f16\u8f91\u7684\uff0c\u6240\u4ee5\u6211\u4eec\u901a\u8fc7productForm.control.id.value\u6765\u63d0\u53d6\u5e76\u76f4\u63a5\u663e\u793a\u3002<\/p>\n<h3>\u65b0\u589e\u4e00\u4e2a\u65b0\u6a21\u5757<\/h3>\n<p>\u5176\u5b9e\uff0c\u5728\u8fd9\u91cc\u542f\u52a8\u4e5f\u4f1a\u51fa\u73b0\u9519\u8bef\u3002<\/p>\n<pre class=\"post-pre\"><code>compiler.js:215 Uncaught Error: Template parse errors:\r\nCan't bind to 'formGroup' since it isn't a known property of 'form'. (\"&lt;div class=\"container\"&gt;\r\n  &lt;div class=\"title\"&gt;\u5546\u54c1\u7de8\u96c6&lt;\/div&gt;\r\n  &lt;form (ngSubmit)=\"saveProduct()\" [ERROR -&gt;][formGroup]=\"productForm\"&gt;\r\n    &lt;div class=\"edit-form\"&gt;\r\n      &lt;div class=\"edit-line\"&gt;\r\n<\/code><\/pre>\n<p>\u9019\u8868\u793a\u6a21\u7d44\u4e0d\u8db3\u3002\u6211\u5011\u5c07\u6309\u7167\u7b2c\u516d\u6b65\u4ecb\u7d39\u7684\u65b9\u6cd5\u9032\u884c\u5c0b\u627e\u3002<\/p>\n<p>\u6211\u5c1d\u8bd5\u8bbf\u95ee https\/\/angular.io \u7f51\u7ad9\u5bfb\u627e FormGroup\u3002<\/p>\n<div><img decoding=\"async\" class=\"post-images\" title=\"\" src=\"https:\/\/cdn.silicloud.com\/blog-img\/blog\/img\/657d3a7c37434c4406c7e0cb\/40-0.png\" alt=\"001.png\" \/><\/div>\n<p>\u5728\u8fd9\u91cc\u4f7f\u7528\u6a21\u5757\u8fdb\u884c\u641c\u7d22\u3002\u2026\u2026\u627e\u4e0d\u5230\uff01<\/p>\n<p>\u5b9e\u9645\u4e0a\uff0cAngular\u7684\u5b98\u65b9\u6587\u6863\u5728\u8fd9\u65b9\u9762\u76f8\u5f53\u7cdf\u7cd5\uff0c\u5f88\u96be\u7406\u89e3\u3002<\/p>\n<p>\u5176\u5b9e\uff0c&#8217;Can&#8217;t bind to &#8216;xxx&#8217; since it isn&#8217;t a known property of &#8216;yyyy&#8221; \u8fd9\u4e2a\u9519\u8bef\u5b9e\u9645\u4e0a\u662f\u6307\u7f3a\u5c11\u6307\u4ee4\uff08\u7c7b\u4f3c\u4e8eHTML\u4e2d\u7684\u5c5e\u6027\uff09\uff0c\u6240\u4ee5\u51fa\u73b0\u4e86\u8be5\u9519\u8bef\u3002<\/p>\n<p>\u5728\u4e0a\u8ff0\u7684\u56fe\u50cf\u4e2d\u8fdb\u884c\u7684\u8c03\u67e5\u5b9e\u9645\u4e0a\u662f\u4e00\u4e2a\u7c7b\u800c\u4e0d\u662f\u6307\u4ee4\u3002<\/p>\n<p>\u5f53\u4f60\u5728 https:\/\/angular.io \u4e0a\u641c\u7d22 FormGroup\uff0c\u4f1a\u51fa\u73b0\u5982\u4e0b\u7684\u9875\u9762\u3002<\/p>\n<div><img decoding=\"async\" class=\"post-images\" title=\"\" src=\"https:\/\/cdn.silicloud.com\/blog-img\/blog\/img\/657d3a7c37434c4406c7e0cb\/46-0.png\" alt=\"002.png\" \/><\/div>\n<p>\u5728\u8fd9\u91cc\uff0c\u88ab\u6807\u8bb0\u4e3a C \u7684\u662f\u7c7b\uff0c\u88ab\u6807\u8bb0\u4e3a D \u7684\u662f\u6307\u4ee4\u3002<\/p>\n<p>\u5728 FormGroup \u4e0b\u9762\u6709\u4e00\u4e2a\u79f0\u4e3a FormGroupDirective \u7684\u4e1c\u897f\u3002<\/p>\n<p>\u5176\u5b9e\uff0c\u6211\u4eec\u5fc5\u987b\u8c03\u67e5\u8fd9\u4e2a\u3002<\/p>\n<div><img decoding=\"async\" class=\"post-images\" title=\"\" src=\"https:\/\/cdn.silicloud.com\/blog-img\/blog\/img\/657d3a7c37434c4406c7e0cb\/50-0.png\" alt=\"003.png\" \/><\/div>\n<p>\u5f53\u6211\u70b9\u51fbFormGroupDirective\u754c\u9762\u65f6\uff0c\u4f1a\u8df3\u8f6c\u5230\u4e0a\u8ff0\u7684\u754c\u9762\u3002<\/p>\n<p>\u5728\u8fd9\u91cc<\/p>\n<pre class=\"post-pre\"><code><span class=\"p\">@<\/span><span class=\"nd\">Directive<\/span><span class=\"p\">({<\/span>\r\n    <span class=\"na\">selector<\/span><span class=\"p\">:<\/span> <span class=\"dl\">'<\/span><span class=\"s1\">[formGroup]<\/span><span class=\"dl\">'<\/span><span class=\"p\">,<\/span>\r\n    <span class=\"na\">providers<\/span><span class=\"p\">:<\/span> <span class=\"p\">[<\/span><span class=\"nx\">formDirectiveProvider<\/span><span class=\"p\">],<\/span>\r\n    <span class=\"na\">host<\/span><span class=\"p\">:<\/span> <span class=\"p\">{<\/span> <span class=\"dl\">'<\/span><span class=\"s1\">(submit)<\/span><span class=\"dl\">'<\/span><span class=\"p\">:<\/span> <span class=\"dl\">'<\/span><span class=\"s1\">onSubmit($event)<\/span><span class=\"dl\">'<\/span><span class=\"p\">,<\/span> <span class=\"dl\">'<\/span><span class=\"s1\">(reset)<\/span><span class=\"dl\">'<\/span><span class=\"p\">:<\/span> <span class=\"dl\">'<\/span><span class=\"s1\">onReset()<\/span><span class=\"dl\">'<\/span> <span class=\"p\">},<\/span>\r\n    <span class=\"na\">exportAs<\/span><span class=\"p\">:<\/span> <span class=\"dl\">'<\/span><span class=\"s1\">ngForm<\/span><span class=\"dl\">'<\/span>\r\n<span class=\"p\">})<\/span>\r\n<\/code><\/pre>\n<p>\u5199\u7740\u300c\u3068\u300d\u3068\u8bb0\u8f7d\u3002<\/p>\n<p>\u8fd9\u4e2a\u6307\u4ee4\u7684\u9009\u62e9\u5668\u662f [formGroup]\u3002\u4e5f\u5c31\u662f\u8bf4\uff0c\u5b83\u7684\u540d\u5b57\u662f Directive\uff0c\u8ba9\u6211\u6709\u4e9b\u56f0\u60d1\uff0c\u4f46\u8fd9\u786e\u5b9e\u662f\u6211\u8981\u67e5\u627e\u7684\u5185\u5bb9\u3002<\/p>\n<p>\u6211\u6765\u5728\u8fd9\u91cc\u641c\u7d22\u4e00\u4e0b\u6a21\u5757\u3002<\/p>\n<div><img decoding=\"async\" class=\"post-images\" title=\"\" src=\"https:\/\/cdn.silicloud.com\/blog-img\/blog\/img\/657d3a7c37434c4406c7e0cb\/57-0.png\" alt=\"004.png\" \/><\/div>\n<p>\u662f\u7684\uff0c\u786e\u5b9e\u53d1\u751f\u4e86\u3002<\/p>\n<p>\u6b64 [formGroup] \u662f\u5c6c\u65bc ReactiveFormModule \u7684\u3002<\/p>\n<p>\u5c06\u5176\u6dfb\u52a0\u5230 app.module.ts \u6587\u4ef6\u4e2d\u3002<\/p>\n<pre class=\"post-pre\"><code><span class=\"k\">import<\/span> <span class=\"p\">{<\/span> <span class=\"nx\">BrowserModule<\/span> <span class=\"p\">}<\/span> <span class=\"k\">from<\/span> <span class=\"dl\">'<\/span><span class=\"s1\">@angular\/platform-browser<\/span><span class=\"dl\">'<\/span><span class=\"p\">;<\/span>\r\n<span class=\"k\">import<\/span> <span class=\"p\">{<\/span> <span class=\"nx\">NgModule<\/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=\"k\">import<\/span> <span class=\"p\">{<\/span> <span class=\"nx\">AppComponent<\/span> <span class=\"p\">}<\/span> <span class=\"k\">from<\/span> <span class=\"dl\">'<\/span><span class=\"s1\">.\/app.component<\/span><span class=\"dl\">'<\/span><span class=\"p\">;<\/span>\r\n<span class=\"k\">import<\/span> <span class=\"p\">{<\/span> <span class=\"nx\">ProductListComponent<\/span> <span class=\"p\">}<\/span> <span class=\"k\">from<\/span> <span class=\"dl\">'<\/span><span class=\"s1\">.\/product\/product-list\/product-list.component<\/span><span class=\"dl\">'<\/span><span class=\"p\">;<\/span>\r\n<span class=\"k\">import<\/span> <span class=\"p\">{<\/span> <span class=\"nx\">ProductDetailComponent<\/span> <span class=\"p\">}<\/span> <span class=\"k\">from<\/span> <span class=\"dl\">'<\/span><span class=\"s1\">.\/product\/product-detail\/product-detail.component<\/span><span class=\"dl\">'<\/span><span class=\"p\">;<\/span>\r\n<span class=\"k\">import<\/span> <span class=\"p\">{<\/span> <span class=\"nx\">AppRoutingModule<\/span> <span class=\"p\">}<\/span> <span class=\"k\">from<\/span> <span class=\"dl\">'<\/span><span class=\"s1\">.\/app-routing.module<\/span><span class=\"dl\">'<\/span><span class=\"p\">;<\/span>\r\n<span class=\"k\">import<\/span> <span class=\"p\">{<\/span> <span class=\"nx\">ProductEditComponent<\/span> <span class=\"p\">}<\/span> <span class=\"k\">from<\/span> <span class=\"dl\">'<\/span><span class=\"s1\">.\/product\/product-edit\/product-edit.component<\/span><span class=\"dl\">'<\/span><span class=\"p\">;<\/span>\r\n<span class=\"k\">import<\/span> <span class=\"p\">{<\/span> <span class=\"nx\">FormsModule<\/span><span class=\"p\">,<\/span> <span class=\"nx\">ReactiveFormsModule<\/span> <span class=\"p\">}<\/span> <span class=\"k\">from<\/span> <span class=\"dl\">'<\/span><span class=\"s1\">@angular\/forms<\/span><span class=\"dl\">'<\/span><span class=\"p\">;<\/span>\r\n\r\n<span class=\"p\">@<\/span><span class=\"nd\">NgModule<\/span><span class=\"p\">({<\/span>\r\n  <span class=\"na\">declarations<\/span><span class=\"p\">:<\/span> <span class=\"p\">[<\/span>\r\n    <span class=\"nx\">AppComponent<\/span><span class=\"p\">,<\/span>\r\n    <span class=\"nx\">ProductListComponent<\/span><span class=\"p\">,<\/span>\r\n    <span class=\"nx\">ProductDetailComponent<\/span><span class=\"p\">,<\/span>\r\n    <span class=\"nx\">ProductEditComponent<\/span>\r\n  <span class=\"p\">],<\/span>\r\n  <span class=\"na\">imports<\/span><span class=\"p\">:<\/span> <span class=\"p\">[<\/span>\r\n    <span class=\"nx\">BrowserModule<\/span><span class=\"p\">,<\/span>\r\n    <span class=\"nx\">AppRoutingModule<\/span><span class=\"p\">,<\/span>\r\n    <span class=\"nx\">FormsModule<\/span><span class=\"p\">,<\/span>\r\n    <span class=\"nx\">ReactiveFormsModule<\/span><span class=\"p\">,<\/span>\r\n  <span class=\"p\">],<\/span>\r\n  <span class=\"na\">providers<\/span><span class=\"p\">:<\/span> <span class=\"p\">[],<\/span>\r\n  <span class=\"na\">bootstrap<\/span><span class=\"p\">:<\/span> <span class=\"p\">[<\/span><span class=\"nx\">AppComponent<\/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\">AppModule<\/span> <span class=\"p\">{<\/span> <span class=\"p\">}<\/span>\r\n\r\n<\/code><\/pre>\n<p>\u8ba9\u6211\u4eec\u5728\u8fd9\u79cd\u60c5\u51b5\u4e0b\u8fdb\u884c\u64cd\u4f5c\u786e\u8ba4\u3002<\/p>\n<p>\u6211\u5c06\u4f7f\u7528 ng serve \u547d\u4ee4\u6765\u542f\u52a8\uff0c\u5e76\u5c1d\u8bd5\u8bbf\u95ee http:\/\/localhost:4200\/products\/1\/edit\u3002<\/p>\n<div><img decoding=\"async\" class=\"post-images\" title=\"\" src=\"https:\/\/cdn.silicloud.com\/blog-img\/blog\/img\/657d3a7c37434c4406c7e0cb\/64-0.png\" alt=\"005.png\" \/><\/div>\n<p>\u5f88\u597d\uff0c\u503c\u5df2\u7ecf\u88ab\u6b63\u786e\u5730\u586b\u5145\u4e86\u3002 FormGroup\u3001FormControl\u5df2\u7ecf\u6210\u529f\u5730\u4e0e<\/p>\n<\/form>\n<form>\u5143\u7d20\u8fdb\u884c\u4e86\u5173\u8054\u3002<\/p>\n<blockquote><p>\u63d0\u793a\uff1a\u6df1\u5965\u7684Form\u5143\u7d20<br \/>\n\u5728\u672c\u6b21\u4e2d\uff0c\u6211\u4ecb\u7ecd\u4e86\u4e09\u4e2a\u7c7b\uff0c\u4f46\u662fAngular\u8fd8\u63d0\u4f9b\u4e86\u5176\u4ed6\u4e0eForm\u76f8\u5173\u7684\u7c7b\u3002<br \/>\n\u8bf7\u8be6\u7ec6\u4e86\u89e3\u8bf7\u8bbf\u95eeAngular\u7684\u5b98\u65b9\u7f51\u7ad9\u3002<br \/>\nhttps:\/\/angular.io\/guide\/reactive-forms<\/p><\/blockquote>\n<h4>\u76f4\u5230\u8fd9\u4e2a\u63d0\u4ea4\u4e3a\u6b62\u3002<\/h4>\n<h2>\u901a\u8fc7\u8868\u5355\u63d0\u4ea4\u8fdb\u884c\u4fdd\u5b58\u5904\u7406<\/h2>\n<p>\u5728\u4f7f\u7528 FormGroup \u548c FormControl \u7684\u60c5\u51b5\u4e0b\uff0c\u6211\u9010\u6b65\u5c06 [(ngModel)] \u8fdb\u884c\u66ff\u6362\u3002<\/p>\n<p>\u5728\u5f53\u524d\u7684\u8fd9\u4e2a\u5e94\u7528\u7a0b\u5e8f\u4e2d\uff0c\u6240\u6709\u7684\u72b6\u6001\u90fd\u662f\u5728\u5185\u5b58\u4e2d\u5904\u7406\u7684\u3002\u5f53\u4f7f\u7528[(ngModel)]\u65f6\uff0c\u7531\u4e8e\u53cc\u5411\u7ed1\u5b9a\uff0c\u5982\u679c\u4e0d\u91c7\u53d6\u4efb\u4f55\u64cd\u4f5c\uff0c\u5b83\u5c06\u88ab\u76f4\u63a5\u4fdd\u5b58\u3002<\/p>\n<p>\u7531\u4e8e\u8fd9\u6b21\u4e0d\u518d\u4f7f\u7528 [(ngModel)]\uff0c\u6240\u4ee5\u6ca1\u6709\u66f4\u6539 ProductService \u6301\u6709\u7684 products \u7684\u5904\u7406\u8fc7\u7a0b\uff0c\u6240\u4ee5\u66f4\u6539\u4e0d\u4f1a\u88ab\u4fdd\u5b58\u3002<\/p>\n<p>\u6211\u5011\u5c07\u5728 ProductService \u4e2d\u6dfb\u52a0\u4e00\u500b update() \u65b9\u6cd5\uff0c\u4ee5\u4fbf\u5c0d\u8b8a\u66f4\u9032\u884c\u4fdd\u5b58\u3002<\/p>\n<pre class=\"post-pre\"><code><span class=\"k\">import<\/span> <span class=\"p\">{<\/span> <span class=\"nx\">Injectable<\/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\">..\/models\/product<\/span><span class=\"dl\">'<\/span><span class=\"p\">;<\/span>\r\n<span class=\"k\">import<\/span> <span class=\"p\">{<\/span> <span class=\"nx\">Observable<\/span><span class=\"p\">,<\/span> <span class=\"k\">of<\/span> <span class=\"p\">}<\/span> <span class=\"k\">from<\/span> <span class=\"dl\">'<\/span><span class=\"s1\">rxjs\/index<\/span><span class=\"dl\">'<\/span><span class=\"p\">;<\/span>\r\n\r\n<span class=\"p\">@<\/span><span class=\"nd\">Injectable<\/span><span class=\"p\">({<\/span>\r\n  <span class=\"na\">providedIn<\/span><span class=\"p\">:<\/span> <span class=\"dl\">'<\/span><span class=\"s1\">root<\/span><span class=\"dl\">'<\/span>\r\n<span class=\"p\">})<\/span>\r\n<span class=\"k\">export<\/span> <span class=\"kd\">class<\/span> <span class=\"nx\">ProductService<\/span> <span class=\"p\">{<\/span>\r\n  <span class=\"nx\">products<\/span> <span class=\"o\">=<\/span> <span class=\"p\">[<\/span>\r\n    <span class=\"k\">new<\/span> <span class=\"nx\">Product<\/span><span class=\"p\">(<\/span><span class=\"mi\">1<\/span><span class=\"p\">,<\/span> <span class=\"dl\">'<\/span><span class=\"s1\">Angular\u5165\u9580\u66f8\u300c\u5929\u5730\u5275\u9020\u306e\u7ae0\u300d<\/span><span class=\"dl\">'<\/span><span class=\"p\">,<\/span> <span class=\"mi\">3800<\/span><span class=\"p\">,<\/span> <span class=\"dl\">'<\/span><span class=\"s1\">\u795e\u306f\u4e91\u3063\u305f\u3002\u300cAngular\u3042\u308c\u300d\u3002\u3059\u308b\u3068Angular\u304c\u51fa\u6765\u305f\u3002<\/span><span class=\"dl\">'<\/span><span class=\"p\">),<\/span>\r\n    <span class=\"k\">new<\/span> <span class=\"nx\">Product<\/span><span class=\"p\">(<\/span><span class=\"mi\">2<\/span><span class=\"p\">,<\/span> <span class=\"dl\">'<\/span><span class=\"s1\">Angular\u3092\u899a\u3048\u305f\u3089\u3001\u5e74\u53ce\u3082\u4e0a\u304c\u3063\u3066\u3001\u5973\u306e\u5b50\u306b\u3082\u3082\u3066\u3066\u3001\u4eba\u751f\u304c\u5909\u308f\u308a\u307e\u3057\u305f\uff01<\/span><span class=\"dl\">'<\/span><span class=\"p\">,<\/span> <span class=\"mi\">410<\/span><span class=\"p\">,<\/span> <span class=\"dl\">'<\/span><span class=\"s1\">\u5e74\u53ce300\u4e07\u306eSE\u304c\u3001Angular\u3068\u51fa\u4f1a\u3046\u3002\u305d\u308c\u306f\u3001\u5c0f\u3055\u306a\u4f1a\u793e\u306e\u793e\u755c\u304c\u59cb\u3081\u305f\u3001\u6700\u521d\u306e\u62b5\u6297\u3060\u3063\u305f\u3002<\/span><span class=\"dl\">'<\/span><span class=\"p\">),<\/span>\r\n    <span class=\"k\">new<\/span> <span class=\"nx\">Product<\/span><span class=\"p\">(<\/span><span class=\"mi\">3<\/span><span class=\"p\">,<\/span> <span class=\"dl\">'<\/span><span class=\"s1\">\u7570\u4e16\u754c\u8ee2\u751f\u304b\u3089\u59cb\u3081\u308bAngular\u751f\u6d3b(1)<\/span><span class=\"dl\">'<\/span><span class=\"p\">,<\/span> <span class=\"mi\">680<\/span><span class=\"p\">,<\/span>\r\n      <span class=\"dl\">'<\/span><span class=\"s1\">\u30b9\u30d1\u30b2\u30c3\u30c6\u30a3\u306e\u6cbc\u3067\u30c7\u30b9\u30de\u30fc\u30c1\u771f\u3063\u6700\u4e2d\u306e\u7530\u4e2d\u3002\u904e\u9177\u306a\u65e5\u3005\u304b\u3089\u306e\u73fe\u5b9f\u9003\u907f\u304b\u5f7c\u306f\u3001\u7570\u4e16\u754c\u306b\u653e\u308a\u51fa\u3055\u308c\u3001\u305d\u3053\u3067Angular\u306e\u5165\u9580\u66f8\u3092\u62fe\u3046\u3002\u73fe\u5b9f\u9003\u907f\u3067\u3055\u3048\u3001\u30d7\u30ed\u30b0\u30e9\u30df\u30f3\u30b0\u3092\u3059\u308b\u3057\u304b\u306a\u3044\u5f7c\u306b\u5f85\u3061\u53d7\u3051\u308b\u306e\u306f\uff01\uff1f<\/span><span class=\"dl\">'<\/span><span class=\"p\">),<\/span>\r\n  <span class=\"p\">];<\/span>\r\n\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\">list<\/span><span class=\"p\">():<\/span> <span class=\"nx\">Observable<\/span><span class=\"o\">&lt;<\/span><span class=\"nx\">Product<\/span><span class=\"p\">[]<\/span><span class=\"o\">&gt;<\/span> <span class=\"p\">{<\/span>\r\n    <span class=\"k\">return<\/span> <span class=\"k\">of<\/span><span class=\"p\">(<\/span><span class=\"k\">this<\/span><span class=\"p\">.<\/span><span class=\"nx\">products<\/span><span class=\"p\">);<\/span>\r\n  <span class=\"p\">}<\/span>\r\n\r\n  <span class=\"kd\">get<\/span><span class=\"p\">(<\/span><span class=\"nx\">id<\/span><span class=\"p\">:<\/span> <span class=\"kr\">number<\/span><span class=\"p\">):<\/span> <span class=\"nx\">Observable<\/span><span class=\"o\">&lt;<\/span><span class=\"nx\">Product<\/span><span class=\"o\">&gt;<\/span> <span class=\"p\">{<\/span>\r\n    <span class=\"k\">return<\/span> <span class=\"k\">of<\/span><span class=\"p\">(<\/span><span class=\"k\">this<\/span><span class=\"p\">.<\/span><span class=\"nx\">products<\/span><span class=\"p\">[<\/span><span class=\"nx\">id<\/span> <span class=\"o\">-<\/span> <span class=\"mi\">1<\/span><span class=\"p\">]);<\/span>\r\n  <span class=\"p\">}<\/span>\r\n\r\n  <span class=\"nx\">update<\/span><span class=\"p\">(<\/span><span class=\"nx\">product<\/span><span class=\"p\">:<\/span> <span class=\"nx\">Product<\/span><span class=\"p\">):<\/span> <span class=\"k\">void<\/span> <span class=\"p\">{<\/span> <span class=\"c1\">\/\/ &lt;= \u8ffd\u52a0<\/span>\r\n    <span class=\"kd\">const<\/span> <span class=\"nx\">index<\/span> <span class=\"o\">=<\/span> <span class=\"k\">this<\/span><span class=\"p\">.<\/span><span class=\"nx\">products<\/span><span class=\"p\">.<\/span><span class=\"nx\">findIndex<\/span><span class=\"p\">((<\/span><span class=\"na\">prd<\/span><span class=\"p\">:<\/span> <span class=\"nx\">Product<\/span><span class=\"p\">)<\/span> <span class=\"o\">=&gt;<\/span> <span class=\"nx\">prd<\/span><span class=\"p\">.<\/span><span class=\"nx\">id<\/span> <span class=\"o\">===<\/span> <span class=\"nx\">product<\/span><span class=\"p\">.<\/span><span class=\"nx\">id<\/span><span class=\"p\">);<\/span>\r\n    <span class=\"k\">this<\/span><span class=\"p\">.<\/span><span class=\"nx\">products<\/span><span class=\"p\">[<\/span><span class=\"nx\">index<\/span><span class=\"p\">]<\/span> <span class=\"o\">=<\/span> <span class=\"nx\">product<\/span><span class=\"p\">;<\/span>\r\n  <span class=\"p\">}<\/span>\r\n<span class=\"p\">}<\/span>\r\n<\/code><\/pre>\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\">Product<\/span> <span class=\"p\">}<\/span> <span class=\"k\">from<\/span> <span class=\"dl\">'<\/span><span class=\"s1\">..\/..\/shared\/models\/product<\/span><span class=\"dl\">'<\/span><span class=\"p\">;<\/span>\r\n<span class=\"k\">import<\/span> <span class=\"p\">{<\/span> <span class=\"nx\">ProductService<\/span> <span class=\"p\">}<\/span> <span class=\"k\">from<\/span> <span class=\"dl\">'<\/span><span class=\"s1\">..\/..\/shared\/services\/product.service<\/span><span class=\"dl\">'<\/span><span class=\"p\">;<\/span>\r\n<span class=\"k\">import<\/span> <span class=\"p\">{<\/span> <span class=\"nx\">ActivatedRoute<\/span><span class=\"p\">,<\/span> <span class=\"nx\">Params<\/span><span class=\"p\">,<\/span> <span class=\"nx\">Router<\/span> <span class=\"p\">}<\/span> <span class=\"k\">from<\/span> <span class=\"dl\">'<\/span><span class=\"s1\">@angular\/router<\/span><span class=\"dl\">'<\/span><span class=\"p\">;<\/span>\r\n<span class=\"k\">import<\/span> <span class=\"p\">{<\/span> <span class=\"nx\">FormBuilder<\/span> <span class=\"p\">}<\/span> <span class=\"k\">from<\/span> <span class=\"dl\">'<\/span><span class=\"s1\">@angular\/forms<\/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-edit<\/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-edit.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-edit.component.scss<\/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\">ProductEditComponent<\/span> <span class=\"k\">implements<\/span> <span class=\"nx\">OnInit<\/span> <span class=\"p\">{<\/span>\r\n  <span class=\"nx\">productForm<\/span> <span class=\"o\">=<\/span> <span class=\"k\">this<\/span><span class=\"p\">.<\/span><span class=\"nx\">fb<\/span><span class=\"p\">.<\/span><span class=\"nx\">group<\/span><span class=\"p\">({<\/span>\r\n    <span class=\"na\">id<\/span><span class=\"p\">:<\/span> <span class=\"p\">[<\/span><span class=\"dl\">''<\/span><span class=\"p\">],<\/span>\r\n    <span class=\"na\">name<\/span><span class=\"p\">:<\/span> <span class=\"p\">[<\/span><span class=\"dl\">''<\/span><span class=\"p\">],<\/span>\r\n    <span class=\"na\">price<\/span><span class=\"p\">:<\/span> <span class=\"p\">[<\/span><span class=\"dl\">''<\/span><span class=\"p\">],<\/span>\r\n    <span class=\"na\">description<\/span><span class=\"p\">:<\/span> <span class=\"p\">[<\/span><span class=\"dl\">''<\/span><span class=\"p\">],<\/span>\r\n  <span class=\"p\">});<\/span>\r\n\r\n  <span class=\"kd\">constructor<\/span><span class=\"p\">(<\/span>\r\n    <span class=\"k\">private<\/span> <span class=\"nx\">route<\/span><span class=\"p\">:<\/span> <span class=\"nx\">ActivatedRoute<\/span><span class=\"p\">,<\/span>\r\n    <span class=\"k\">private<\/span> <span class=\"nx\">router<\/span><span class=\"p\">:<\/span> <span class=\"nx\">Router<\/span><span class=\"p\">,<\/span>\r\n    <span class=\"k\">private<\/span> <span class=\"nx\">fb<\/span><span class=\"p\">:<\/span> <span class=\"nx\">FormBuilder<\/span><span class=\"p\">,<\/span>\r\n    <span class=\"k\">private<\/span> <span class=\"nx\">productService<\/span><span class=\"p\">:<\/span> <span class=\"nx\">ProductService<\/span><span class=\"p\">,<\/span>\r\n  <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=\"k\">this<\/span><span class=\"p\">.<\/span><span class=\"nx\">route<\/span><span class=\"p\">.<\/span><span class=\"nx\">params<\/span><span class=\"p\">.<\/span><span class=\"nx\">subscribe<\/span><span class=\"p\">((<\/span><span class=\"nx\">params<\/span><span class=\"p\">:<\/span> <span class=\"nx\">Params<\/span><span class=\"p\">)<\/span> <span class=\"o\">=&gt;<\/span> <span class=\"p\">{<\/span>\r\n      <span class=\"k\">this<\/span><span class=\"p\">.<\/span><span class=\"nx\">productService<\/span><span class=\"p\">.<\/span><span class=\"kd\">get<\/span><span class=\"p\">(<\/span><span class=\"nx\">params<\/span><span class=\"p\">[<\/span><span class=\"dl\">'<\/span><span class=\"s1\">id<\/span><span class=\"dl\">'<\/span><span class=\"p\">]).<\/span><span class=\"nx\">subscribe<\/span><span class=\"p\">((<\/span><span class=\"na\">product<\/span><span class=\"p\">:<\/span> <span class=\"nx\">Product<\/span><span class=\"p\">)<\/span> <span class=\"o\">=&gt;<\/span> <span class=\"p\">{<\/span>\r\n        <span class=\"k\">this<\/span><span class=\"p\">.<\/span><span class=\"nx\">productForm<\/span><span class=\"p\">.<\/span><span class=\"nx\">setValue<\/span><span class=\"p\">({<\/span>\r\n          <span class=\"na\">id<\/span><span class=\"p\">:<\/span> <span class=\"nx\">product<\/span><span class=\"p\">.<\/span><span class=\"nx\">id<\/span><span class=\"p\">,<\/span>\r\n          <span class=\"na\">name<\/span><span class=\"p\">:<\/span> <span class=\"nx\">product<\/span><span class=\"p\">.<\/span><span class=\"nx\">name<\/span><span class=\"p\">,<\/span>\r\n          <span class=\"na\">price<\/span><span class=\"p\">:<\/span> <span class=\"nx\">product<\/span><span class=\"p\">.<\/span><span class=\"nx\">price<\/span><span class=\"p\">,<\/span>\r\n          <span class=\"na\">description<\/span><span class=\"p\">:<\/span> <span class=\"nx\">product<\/span><span class=\"p\">.<\/span><span class=\"nx\">description<\/span><span class=\"p\">,<\/span>\r\n        <span class=\"p\">});<\/span>\r\n      <span class=\"p\">});<\/span>\r\n    <span class=\"p\">});<\/span>\r\n  <span class=\"p\">}<\/span>\r\n\r\n  <span class=\"nx\">saveProduct<\/span><span class=\"p\">():<\/span> <span class=\"k\">void<\/span> <span class=\"p\">{<\/span>\r\n    <span class=\"kd\">const<\/span> <span class=\"p\">{<\/span> <span class=\"nx\">id<\/span><span class=\"p\">,<\/span> <span class=\"nx\">name<\/span><span class=\"p\">,<\/span> <span class=\"nx\">price<\/span><span class=\"p\">,<\/span> <span class=\"nx\">description<\/span> <span class=\"p\">}<\/span> <span class=\"o\">=<\/span> <span class=\"k\">this<\/span><span class=\"p\">.<\/span><span class=\"nx\">productForm<\/span><span class=\"p\">.<\/span><span class=\"nx\">getRawValue<\/span><span class=\"p\">();<\/span> <span class=\"c1\">\/\/ &lt;= \u8ffd\u52a0<\/span>\r\n    <span class=\"k\">this<\/span><span class=\"p\">.<\/span><span class=\"nx\">productService<\/span><span class=\"p\">.<\/span><span class=\"nx\">update<\/span><span class=\"p\">(<\/span><span class=\"k\">new<\/span> <span class=\"nx\">Product<\/span><span class=\"p\">(<\/span><span class=\"nx\">id<\/span><span class=\"p\">,<\/span> <span class=\"nx\">name<\/span><span class=\"p\">,<\/span> <span class=\"nx\">price<\/span><span class=\"p\">,<\/span> <span class=\"nx\">description<\/span><span class=\"p\">));<\/span> <span class=\"c1\">\/\/ &lt;= \u8ffd\u52a0<\/span>\r\n    <span class=\"k\">this<\/span><span class=\"p\">.<\/span><span class=\"nx\">router<\/span><span class=\"p\">.<\/span><span class=\"nx\">navigate<\/span><span class=\"p\">([<\/span><span class=\"dl\">'<\/span><span class=\"s1\">\/products<\/span><span class=\"dl\">'<\/span><span class=\"p\">,<\/span> <span class=\"k\">this<\/span><span class=\"p\">.<\/span><span class=\"nx\">productForm<\/span><span class=\"p\">.<\/span><span class=\"nx\">controls<\/span><span class=\"p\">.<\/span><span class=\"nx\">id<\/span><span class=\"p\">.<\/span><span class=\"nx\">value<\/span><span class=\"p\">]);<\/span> <span class=\"c1\">\/\/ &lt;= \u5909\u66f4<\/span>\r\n  <span class=\"p\">}<\/span>\r\n<span class=\"p\">}<\/span>\r\n<\/code><\/pre>\n<h3>\u8bf4\u660e<\/h3>\n<h4>\u6709\u5173\u4ea7\u54c1\u670d\u52a1\u7684\u5185\u5bb9<\/h4>\n<p>\u6211\u4e3a ProductService \u6dfb\u52a0\u4e86 update() \u65b9\u6cd5\u3002<\/p>\n<pre class=\"post-pre\"><code><span class=\"nx\">update<\/span><span class=\"p\">(<\/span><span class=\"nx\">product<\/span><span class=\"p\">:<\/span> <span class=\"nx\">Product<\/span><span class=\"p\">):<\/span> <span class=\"k\">void<\/span> <span class=\"p\">{<\/span>\r\n  <span class=\"kd\">const<\/span> <span class=\"nx\">index<\/span> <span class=\"o\">=<\/span> <span class=\"k\">this<\/span><span class=\"p\">.<\/span><span class=\"nx\">products<\/span><span class=\"p\">.<\/span><span class=\"nx\">findIndex<\/span><span class=\"p\">((<\/span><span class=\"na\">prd<\/span><span class=\"p\">:<\/span> <span class=\"nx\">Product<\/span><span class=\"p\">)<\/span> <span class=\"o\">=&gt;<\/span> <span class=\"nx\">prd<\/span><span class=\"p\">.<\/span><span class=\"nx\">id<\/span> <span class=\"o\">===<\/span> <span class=\"nx\">product<\/span><span class=\"p\">.<\/span><span class=\"nx\">id<\/span><span class=\"p\">);<\/span>\r\n  <span class=\"k\">this<\/span><span class=\"p\">.<\/span><span class=\"nx\">products<\/span><span class=\"p\">[<\/span><span class=\"nx\">index<\/span><span class=\"p\">]<\/span> <span class=\"o\">=<\/span> <span class=\"nx\">product<\/span><span class=\"p\">;<\/span>\r\n<span class=\"p\">}<\/span>\r\n<\/code><\/pre>\n<p>\u5904\u7406\u7684\u6b65\u9aa4\u662f\uff0c\u901a\u8fc7update\u63d0\u4f9b\u7684product\u67e5\u627e\u5177\u6709\u76f8\u540cid\u7684\u7d22\u5f15\uff0c\u5728products\u4e2d\u5c06\u7d22\u5f15\u4f4d\u7f6e\u7684\u5143\u7d20\u4e0e\u8f93\u5165\u7684product\u8fdb\u884c\u4ea4\u6362\u3002<\/p>\n<blockquote><p>\u63d0\u793a\uff1afindIndex() \u65b9\u6cd5<br \/>\n\u8fd9\u662fJavascript\u4e2dArray\u5bf9\u8c61\u7684\u4e00\u4e2a\u65b9\u6cd5\u3002\u5b83\u4f1a\u5bf9\u6570\u7ec4\u7684\u6bcf\u4e2a\u5143\u7d20\u6267\u884c\u6307\u5b9a\u7684\u51fd\u6570\uff0c\u5e76\u8fd4\u56de\u7b2c\u4e00\u4e2a\u8fd4\u56de true \u7684\u5143\u7d20\u7684\u7d22\u5f15\u503c\u3002<br \/>\n\u53c2\u8003\u94fe\u63a5\uff1ahttps:\/\/developer.mozilla.org\/en-US\/docs\/Web\/JavaScript\/Reference\/Global_Objects\/Array\/findIndex<\/p><\/blockquote>\n<h4>\u6709\u5173ProductEditComponent<\/h4>\n<p>\u6211\u6539\u53d8\u4e86saveProduct()\u65b9\u6cd5\u3002<\/p>\n<pre class=\"post-pre\"><code><span class=\"nx\">saveProduct<\/span><span class=\"p\">():<\/span> <span class=\"k\">void<\/span> <span class=\"p\">{<\/span>\r\n  <span class=\"kd\">const<\/span> <span class=\"p\">{<\/span> <span class=\"nx\">id<\/span><span class=\"p\">,<\/span> <span class=\"nx\">name<\/span><span class=\"p\">,<\/span> <span class=\"nx\">price<\/span><span class=\"p\">,<\/span> <span class=\"nx\">description<\/span> <span class=\"p\">}<\/span> <span class=\"o\">=<\/span> <span class=\"k\">this<\/span><span class=\"p\">.<\/span><span class=\"nx\">productForm<\/span><span class=\"p\">.<\/span><span class=\"nx\">getRawValue<\/span><span class=\"p\">();<\/span> <span class=\"c1\">\/\/ &lt;= \u8ffd\u52a0<\/span>\r\n  <span class=\"k\">this<\/span><span class=\"p\">.<\/span><span class=\"nx\">productService<\/span><span class=\"p\">.<\/span><span class=\"nx\">update<\/span><span class=\"p\">(<\/span><span class=\"k\">new<\/span> <span class=\"nx\">Product<\/span><span class=\"p\">(<\/span><span class=\"nx\">id<\/span><span class=\"p\">,<\/span> <span class=\"nx\">name<\/span><span class=\"p\">,<\/span> <span class=\"nx\">price<\/span><span class=\"p\">,<\/span> <span class=\"nx\">description<\/span><span class=\"p\">));<\/span> <span class=\"c1\">\/\/ &lt;= \u8ffd\u52a0<\/span>\r\n  <span class=\"k\">this<\/span><span class=\"p\">.<\/span><span class=\"nx\">router<\/span><span class=\"p\">.<\/span><span class=\"nx\">navigate<\/span><span class=\"p\">([<\/span><span class=\"dl\">'<\/span><span class=\"s1\">\/products<\/span><span class=\"dl\">'<\/span><span class=\"p\">,<\/span> <span class=\"k\">this<\/span><span class=\"p\">.<\/span><span class=\"nx\">productForm<\/span><span class=\"p\">.<\/span><span class=\"nx\">controls<\/span><span class=\"p\">.<\/span><span class=\"nx\">id<\/span><span class=\"p\">.<\/span><span class=\"nx\">value<\/span><span class=\"p\">]);<\/span> <span class=\"c1\">\/\/ &lt;= \u5909\u66f4<\/span>\r\n<span class=\"p\">}<\/span>\r\n<\/code><\/pre>\n<p>\u9996\u5148\u662f\u7b2c\u4e00\u884c<\/p>\n<pre class=\"post-pre\"><code><span class=\"kd\">const<\/span> <span class=\"p\">{<\/span> <span class=\"nx\">id<\/span><span class=\"p\">,<\/span> <span class=\"nx\">name<\/span><span class=\"p\">,<\/span> <span class=\"nx\">price<\/span><span class=\"p\">,<\/span> <span class=\"nx\">description<\/span> <span class=\"p\">}<\/span> <span class=\"o\">=<\/span> <span class=\"k\">this<\/span><span class=\"p\">.<\/span><span class=\"nx\">productForm<\/span><span class=\"p\">.<\/span><span class=\"nx\">getRawValue<\/span><span class=\"p\">();<\/span>\r\n<\/code><\/pre>\n<p>\u6211\u5c06\u5bf9\u6b64\u8fdb\u884c\u89e3\u91ca\u3002<\/p>\n<p>\u8fd9\u4e2a.productForm.getRawValue() \u65b9\u6cd5\u4f1a\u5c06 FormGroup \u5185\u7684 FormControl \u503c\u4ee5 key: value \u7684\u5f62\u5f0f\u8f6c\u6362\u6210\u5bf9\u8c61\u5e76\u8fd4\u56de\u3002<\/p>\n<p>\u5982\u679c\u672c\u6b21\u53ea\u5bf9 id \u4e3a3\u7684\u4ea7\u54c1\u8fdb\u884c\u6267\u884c\u800c\u4e0d\u8fdb\u884c\u4efb\u4f55\u7f16\u8f91\uff0c\u5c06\u8fd4\u56de\u4e0b\u5217\u7ed3\u679c\u3002<\/p>\n<pre class=\"post-pre\"><code>{id: 3, name: \"\u7570\u4e16\u754c\u8ee2\u751f\u304b\u3089\u59cb\u3081\u308bAngular\u751f\u6d3b(1)\", price: 680, description: \"\u30b9\u30d1\u30b2\u30c3\u30c6\u30a3\u306e\u6cbc\u3067\u30c7\u30b9\u30de\u30fc\u30c1\u771f\u3063\u6700\u4e2d\u306e\u7530\u4e2d\u3002\u904e\u9177\u306a\u65e5\u3005\u304b\u3089\u306e\u73fe\u5b9f\u9003\u907f\u304b\u5f7c\u306f\u3001\u7570\u4e16\u754c\u306b\u653e\u308a\u51fa\u3055\u308c\u3001\u305d\u3053\u3067Angular\u306e\u5165\u9580\u66f8\u3092\u62fe\u3046\u3002\u73fe\u5b9f\u9003\u907f\u3067\u3055\u3048\u3001\u30d7\u30ed\u30b0\u30e9\u30df\u30f3\u30b0\u3092\u3059\u308b\u3057\u304b\u306a\u3044\u5f7c\u306b\u5f85\u3061\u53d7\u3051\u308b\u306e\u306f\uff01\uff1f\"}\r\n<\/code><\/pre>\n<p>\u4e0b\u4e00\u4e2a\u662f\uff0c<\/p>\n<p>const { xxx } = yyy \u662f\u5c06 yyy \u5bf9\u8c61\u7684 xxx \u5143\u7d20\u5b58\u5165\u53d8\u91cf xxx \u4e2d\u7684\u64cd\u4f5c\u3002<\/p>\n<p>\u56e0\u6b64\uff0c\u8fd9\u610f\u5473\u7740\u5c06 FormGroup \u7684\u6bcf\u4e2a\u503c\u5206\u522b\u8d4b\u7ed9\u53d8\u91cf id\u3001name\u3001price \u548c description\u3002<\/p>\n<p>\u5728\u4e0b\u4e00\u884c\u4e2d\uff0c\u8c03\u7528\u4e86 ProductService \u4e2d\u65b0\u521b\u5efa\u7684 update() \u65b9\u6cd5\u3002<\/p>\n<p>\u5c3d\u7ba1\u6700\u540e\u4e00\u884c\u5e76\u4e0d\u9700\u8981\u7279\u522b\u66f4\u6539\uff0c\u4f46\u5728\u4fdd\u5b58\u540e\u8f6c\u5230\u5217\u8868\u89c6\u56fe\uff0c\u56e0\u6b64\u6211\u8fdb\u884c\u4e86\u4fee\u6b63\u4ee5\u8f6c\u5230\u8be6\u7ec6\u89c6\u56fe\u3002<\/p>\n<p>\u8ba9\u6211\u4eec\u8fdb\u884c\u64cd\u4f5c\u786e\u8ba4\u3002<\/p>\n<div><img decoding=\"async\" class=\"post-images\" title=\"\" src=\"https:\/\/cdn.silicloud.com\/blog-img\/blog\/img\/657d3a7c37434c4406c7e0cb\/97-0.gif\" alt=\"006.gif\" \/><\/div>\n<p>\u73b0\u5728\u4fdd\u5b58\u7684\u5185\u5bb9\u80fd\u591f\u6b63\u786e\u5730\u53cd\u6620\u51fa\u6765\u4e86\u3002<\/p>\n<h4>\u8fc4\u4eca\u7684\u63d0\u4ea4<\/h4>\n<h2>\u603b\u7ed3<\/h2>\n<p>\u9019\u6b21\u6211\u5011\u5b78\u7fd2\u4e86\u95dc\u65bc\u4e0d\u4f7f\u7528 [(ngModel)] \u7684 Reactive forms\u3002\u96d6\u7136\u76f8\u6bd4\u65bc [(ngModel)] \u4f86\u8aaa\u7a0d\u5fae\u5197\u9577\u4e00\u4e9b\uff0c\u4f46\u662f\u5728\u4e0b\u4e00\u500b\u7248\u672c\u4e2d\u52a0\u5165\u9a57\u8b49\u90e8\u5206\u5f8c\uff0c\u9019\u7a2e\u65b9\u5f0f\u4e5f\u8b8a\u5f97\u76f8\u7576\u65b9\u4fbf\u4f7f\u7528\u3002<\/p>\n<p>\u4e0b\u6b21\u6211\u4eec\u5c06\u89e3\u91ca\u4e00\u4e0bAngular\u7684\u9a8c\u8bc1\u65b9\u6cd5\u3002<\/p>\n<p>8. \u9a8c\u8bc1-\u4f7fAngular\u521d\u5b66\u8005\u80fd\u591f\u5728\u4e00\u4e2a\u6708\u5185\u521b\u5efa\u670d\u52a1<\/p>\n<h2>\u5165\u95e8\u6307\u5357\u5217\u8868<\/h2>\n<p>\u300cAngular\u5165\u9580 \u672a\u7d4c\u9a13\u304b\u30891\u30f6\u6708\u3067\u30b5\u30fc\u30d3\u30b9\u3092\u4f5c\u6210\u3067\u304d\u308b\u3088\u3046\u306b\u3059\u308b\u300d\u3068\u3044\u3046\u8a18\u4e8b\u306f\u3001\u8a18\u4e8b\u6570\u304c\u591a\u3044\u305f\u3081\u3001\u307e\u3068\u3081\u8a18\u4e8b\u3092\u4f5c\u6210\u3057\u3066\u3044\u307e\u3059\u3002<br \/>\nhttps:\/\/qiita.com\/seteen\/items\/43908e33e08a39612a07<\/p>\n<\/form>\n","protected":false},"excerpt":{"rendered":"<p>\u4e0a\u4e00\u6b21\uff0c\u901a\u8fc7\u5b9e\u8df5\u8fd0\u7528\u4e4b\u524d\u6240\u5b66\u7684\u77e5\u8bc6\uff0c\u6211\u52a0\u6df1\u4e86\u5bf9Angular\u7684\u4e86\u89e3\u3002 \u5728\u672c\u6587\u4e2d\uff0c\u6211\u4eec\u5c06\u5b66\u4e60\u5982\u4f55\u4f7f\u7528\u54cd\u5e94\u5f0f\u8868\u5355\u6765 [&hellip;]<\/p>\n","protected":false},"author":8,"featured_media":0,"comment_status":"closed","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[1],"tags":[],"class_list":["post-39452","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>\u4e03\uff0e\u5229\u7528 Angular \u7684\u54cd\u5e94\u5f0f\u8868\u5355\uff0c\u8ba9\u96f6\u57fa\u7840\u7528\u6237\u4e00\u4e2a\u6708\u5185\u80fd\u591f\u5236\u4f5c\u670d\u52a1 - 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\/\u4e03\uff0e\u5229\u7528-angular-\u7684\u54cd\u5e94\u5f0f\u8868\u5355\uff0c\u8ba9\u96f6\u57fa\u7840\u7528\u6237\u4e00\u4e2a\u6708\u5185\/\" \/>\n<meta property=\"og:locale\" content=\"zh_CN\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"\u4e03\uff0e\u5229\u7528 Angular \u7684\u54cd\u5e94\u5f0f\u8868\u5355\uff0c\u8ba9\u96f6\u57fa\u7840\u7528\u6237\u4e00\u4e2a\u6708\u5185\u80fd\u591f\u5236\u4f5c\u670d\u52a1\" \/>\n<meta property=\"og:description\" content=\"\u4e0a\u4e00\u6b21\uff0c\u901a\u8fc7\u5b9e\u8df5\u8fd0\u7528\u4e4b\u524d\u6240\u5b66\u7684\u77e5\u8bc6\uff0c\u6211\u52a0\u6df1\u4e86\u5bf9Angular\u7684\u4e86\u89e3\u3002 \u5728\u672c\u6587\u4e2d\uff0c\u6211\u4eec\u5c06\u5b66\u4e60\u5982\u4f55\u4f7f\u7528\u54cd\u5e94\u5f0f\u8868\u5355\u6765 [&hellip;]\" \/>\n<meta property=\"og:url\" content=\"https:\/\/www.silicloud.com\/zh\/blog\/\u4e03\uff0e\u5229\u7528-angular-\u7684\u54cd\u5e94\u5f0f\u8868\u5355\uff0c\u8ba9\u96f6\u57fa\u7840\u7528\u6237\u4e00\u4e2a\u6708\u5185\/\" \/>\n<meta property=\"og:site_name\" content=\"Blog - Silicon Cloud\" \/>\n<meta property=\"article:published_time\" content=\"2023-03-01T23:20:52+00:00\" \/>\n<meta property=\"article:modified_time\" content=\"2024-04-29T23:13:57+00:00\" \/>\n<meta property=\"og:image\" content=\"https:\/\/cdn.silicloud.com\/blog-img\/blog\/img\/657d3a7c37434c4406c7e0cb\/40-0.png\" \/>\n<meta name=\"author\" content=\"\u96c5, \u609f\" \/>\n<meta name=\"twitter:card\" content=\"summary_large_image\" \/>\n<meta name=\"twitter:label1\" content=\"\u4f5c\u8005\" \/>\n\t<meta name=\"twitter:data1\" content=\"\u96c5, \u609f\" \/>\n\t<meta name=\"twitter:label2\" content=\"\u9884\u8ba1\u9605\u8bfb\u65f6\u95f4\" \/>\n\t<meta name=\"twitter:data2\" content=\"5 \u5206\" \/>\n<script type=\"application\/ld+json\" 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