Vue的生命周期Vue的生命周期 Vue的生命周期 ``` Vue的生命周期 {{count}} Add 销毁 ```

<!DOCTYPE html>
<html lang="en">
<head>
    <meta charset="UTF-8">
    <title>Vue的生命周期</title>
    <script type="text/javascript" src="../assets/js/vue.js"></script>
</head>
<body>
<h1>Vue的生命周期</h1>
<hr>
<div id="app">
    {{count}}
    <p><button @click="add">Add</button></p>
</div>
<button οnclick="app.$destroy()">销毁</button>
</body>
</html>
<script>
    var app = new Vue({
        el:'#app',
        data:{
           count:1
        },
        methods:{
            add:function () {
                this.count++
            }
        },
        //有这么多钩子函数 一共十个
        //初始化之后
        beforeCreate:function(){
            console.log('1-beforeCreate 初始化之后');
        },
        //创建完成
        created:function(){
            console.log('2-created 创建完成');
        },
        //挂载之前
        beforeMount:function(){
            console.log('3-beforeMount 挂载之前');
        },
        //被创建
        mounted:function(){
            console.log('4-mounted 被创建');
        },
        //数据更新前
        beforeUpdate:function(){
            console.log('5-beforeUpdate 数据更新前');
        },
        //被更新后
        updated:function(){
            console.log('6-updated 被更新后');
        },
        //
        activated:function(){
            console.log('7-activated');
        },
        //
        deactivated:function(){
            console.log('8-deactivated');
        },
        //销毁之前
        beforeDestroy:function(){
            console.log('9-beforeDestroy 销毁之前');
        },
        //销毁之后
        destroyed:function(){
            console.log('10-destroyed 销毁之后')
        }

    })
</script>