vue ref操作

ref 获取组件的信息



<!DOCTYPE html>
<html lang="en">
<head>
    <meta charset="UTF-8">

    <title>Title</title>
    <script src="../vue.js"></script>
</head>
<body>
<div id="app">
    <button @click="getEl">getEL</button>
    <h3 ref="myh3">今天天气还不错！！！</h3>
    <hr/>
    <login ref="mylogin"></login>
</div>
</body>
<script>
    var login ={
        template:"<h3>我是子组件</h3>",
        data(){
            return {
                mes:"我是之组件数据"
            }
        },
        methods:{
            show(){
                console.log("我是之组件方法");
            }
        }
    }
    var vm = new Vue({
        el: "#app",
        data: {
            mes: "hello Vue"
        },
        methods: {
            getEl() {
                console.log(this.$refs.myh3.innerHTML);
                console.log(this.$refs.mylogin.mes);
                this.$refs.mylogin.show();
            }
        },
        components:{
            login
        }
    });
</script>
</html>