<!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>
</head>
<body>
<div id="app">
<h2>{{msg}}</h2>
<h2>{{age}}</h2>
</div>
<button onclick="hadnleMount()">挂载</button>
<button onclick="hadnleDestroy()">卸载</button>
<button onclick="handleUpdate()">强制更新</button>
</body>
</html>
<script src="./vue.js"></script>
<script>
var vm = new Vue({
data:{
msg:"1905"
},
beforeMount(){
this.age = 20;
}
})
function hadnleMount(){
vm.$mount("#app");//手动挂载
}
function hadnleDestroy(){
vm.$destroy(); //卸载
}
function handleUpdate(){
vm.$forceUpdate() //如果属性身上没有setter/getter方法的时候可以进行强制更新
}
/*
vm.$mount:
手动挂载vue的作用范围
vm.$forceUpdate
vm.$destroy
vm.$nextTick
*/
</script>
