<!DOCTYPE html>
<html>
<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'>
<!-- ref操作dom
1. 给要操作的元素设置ref属性 值随便写
2. 在js中选项mounted(){获取要操作的dom元素}-->
<input type="text" ref="txt">
<p ref='ppp'>pppppppp</p>
<a href="#" ref='aaa'>aaaaaaaa</a>
</div>
<script src='./vue.js'></script>
<script>
new Vue({
el: '#app',
data: {},
methods: {},
mounted() {
console.log("mounted被触发----");
this.$refs.txt.focus();
console.log(this.$refs.txt);//input标签
console.log(this.$refs.ppp); //p标签
console.log(this.$refs.aaa);//a标签
console.log('文本：' + this.$refs.aaa.innerText);
//a标签的内容
}
});
</script>
</body>
</html>
