Vue——22——使用ref获取DOM元素和组件引用

<!DOCTYPE html>
<html lang="en">

<head>
    <meta charset="UTF-8">
    <meta name="viewport" content="width=device-width, initial-scale=1.0">
    <title>Document</title>
    <script src="../lib/vue.js"></script>
    <link rel="stylesheet" href="../lib/bootstrap3.3.7.css">
</head>

<body>
    <div id="app">
        <input type="button" value="获取元素" @click="getElement" ref="mybtn">
        <h3 id="myh3" ref="myh3">哈哈哈哈哈哈哈</h3>
        <login ref="mylogin"></login>
    </div>

    <script>
        var login={
            template:"<h1>登录组件</h1>",
            data() {
                return {
                    msg:'son msg'
                }
            },
            methods: {
                 show(){
                console.log('调用了子组件的方法')
            }
            },
           
        }
        var vm = new Vue({
            el: '#app',
            data: {
            },
            methods: {
             //ref是英文单词[reference] [referenceError]
             getElement(){
                //  console.log(this.$refs.myh3.innerText);
                console.log(this.$refs.mylogin.msg);
                this.$refs.mylogin.show()
             }
            },
           components:{
            login
           }
        })
    </script>
</body>

</html>

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转载自blog.csdn.net/x1037490413/article/details/107344433