<!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>
<script src="./lib/vue-2.4.0.js"></script>
</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， 今天天气太好了！！！</h3>
<hr>
<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)
}
}
}
// 创建 Vue 实例，得到 ViewModel
var vm = new Vue({
el: #app,
data: {
},
methods: {
getElement() {
// console.log(document.getElementById(myh3).innerText)
// ref 是 英文单词 【reference】 值类型 和 引用类型 referenceError
console.log(this.$refs.myh3.innerText)
console.log(this.$refs.mylogin.msg)
this.$refs.mylogin.show()
}
},
components: {
login
}
});
</script>
</body>
</html>
