慕课在线编辑器

代码提交代码

<!DOCTYPE html>
<html lang="en">
<head>
  <meta charset="UTF-8">
  <meta name="viewport" content="width=device-width, initial-scale=1.0">
  <meta http-equiv="X-UA-Compatible" content="ie=edge">
  <title>Document</title>
</head>
<body>
  <div id="app">
    <person @modify="modify"></person>
    <detail :name="name" :count="count"/>
  </div>
</body>
<script src="https://unpkg.com/vue/dist/vue.js"></script>
<script type="text/javascript">
  Vue.component('person', {
    template: '<div><div>姓名：<input type="text" v-model="name"/></div><div>年龄：<input type="text" v-model="count"/></div><button @click="modify">修改</button></div>',
    data() {
      return {
        name: '句号',
        count: 18
      }
    },
    methods: {
      modify() {
        this.$emit('modify', {name: this.name, count: this.count})
      }
    }
  })
  Vue.component('detail', {
    template: '<div>我是：{{name}}， 我今年 {{count}}岁。</div>',
    props: {
      name: {
        type: String,
        default: '句号'
      },
      count: {
        type: Number,
        default: 18
      }
    },
    methods: {
    }
  })
  var vm = new Vue({
    el: '#app',
    data() {
    	return {
        name: '句号',
        count: 18
      }
    },
    methods: {
      modify(detail) {
        this.name = detail.name
        this.count = parseInt(detail.count)
      }
    }
  })
</script>
</html>

运行结果