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声明组件与子组件,以及他们之间的通信方式
手机用户1594223549
Original
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代码部分

  1. <!DOCTYPE html>
  2. <html lang="zh-CN">
  3.   <head>
  4.     <meta charset="UTF-8" />
  5.     <meta http-equiv="X-UA-Compatible" content="IE=edge" />
  6.     <meta name="viewport" content="width=device-width, initial-scale=1.0" />
  7.     <title>声明组件与子组件,以及他们之间的通信方式</title>
  8.     <script src="https://unpkg.com/vue@3/dist/vue.global.js"></script>
  9.   </head>
  10.   <body>
  11.     <!-- 挂载点 -->
  12.     <div id="app">
  13.       <!-- 组件挂载 -->
  14.       <greeting />
  15.     </div>
  16.   </body>
  17.   <script>
  18.     // 应用实例
  19.     const app = Vue.createApp({});
  20.     app.component("greeting", {
  21.       // html模版
  22.       template: `
  23.         <h2>Hello, {{uname}}</h2>
  24.         <button @click='setLike'>点赞 + {{count}}</button>
  25.         <!-- 命名规则: 小驼 -> 肉串 -->
  26.         <my-award v-if='count >=10' />        
  27.         `,
  28.       // 数据
  29.       data() {
  30.         return {
  31.           uname: "李老师",
  32.           count: 0,
  33.         };
  34.       },
  35.       // 方法
  36.       methods: {
  37.         setLike() {
  38.           this.count++;
  39.         },
  40.       },
  42.       // 声明子组件(复数属性)
  43.       components: {
  44.         // 奖励组件
  45.         myAward: {
  46.           // 只要是组件，可以写模版
  47.           template: `<p>实在太受欢迎了`,
  48.           data() {
  49.             return {};
  50.           },
  51.           components: {},
  52.         },
  53.       },
  54.     });
  55.     // 根组件实例 (vue应用与挂载点绑定)
  56.     const vm = app.mount("#app");
  57.   </script>
  58. </html>
Correcting teacher：PHPzPHPz

Correction status：qualified

Teacher's comments：
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