46.复习-父子组件之间的传值.html

<!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">
    <script src="./lib/vue.js"></script>
    <title>Document</title>
</head>
<body>
    <div id="app">
        <com1 :data1="data1" @func="getMsgFromSon">
           
        </com1>
    </div>
    <template id="tmp1">
        <div>
            <h1>brooo--------{{data1}}</h1>
            <input type="button" value="给父组件传值" @click="sendMsg">
        </div>
    </template>
    <script>
        var com1 = {
            template: "#tmp1",
            props: ['data1'],
            data(){
                return {
                    sonMsg:'hi dady'
                }
            },
            methods: {
                sendMsg(){
                    this.$emit('func', this.sonMsg)
                    console.log(this.sonMsg)
                }
            },
        }
        var vm = new Vue({
            el: '#app',
            data: {
                data1: 'data from father',
                msgFromSon: ''
            },
            methods: {
                getMsgFromSon(data){
                    this.msgFromSon = data
                }
            },
            components:{
                com1
            }
        })
    </script>
</body>
</html>