lovecoding
/
vipAllDay


			
				
					
						
						
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							<!DOCTYPE html>
<html lang="en">
<head>
    <meta charset="UTF-8">
    <meta name="viewport" content="width=device-width, initial-scale=1.0">
    <title>Document</title>
</head>
<body>
    <div id="app">
        <!-- 
            生命周期：
                创建：
                    beforeCreate 创建前：方法和数据是无法使用的
                    created 创建后：方法和数据是可以使用的
                运行：
                    beforeMount 挂在前  虽然方法数据可以使用 但是真实页面未挂载
                    mounted 挂在后  真实页面已经挂载
                    beforeUpdate 更新前 值未改变
                    updated 更新后 值已经改变
                销毁：
                beforeDestroy 销毁前
                destroyed 销毁后
         -->
         <div id="first">{{msg}}</div>
         <button @click="change1">修改</button>
    </div>
    <script src="../vue初阶/vue.js"></script>
    <script>
        var vm = new Vue({
            el: "#app",
            data: {
                msg: "哈哈哈"
            },
            methods:{
                show() {
                    console.log('ooo','ssss');
                },
                change1() {
                    console.log('触发')
                    this.msg = "嘿嘿嘿";
                }
            },
            beforeCreate() {
                console.log("创建前",this.msg);
            },
            created() {
                console.log("创建后",this.msg);
            },
            beforeMount() {
                console.log("挂载前",this.$el);
                this.show();
            },
            mounted() {
                console.log("挂载后",this.$el);
            },
            beforeUpdate() {
                console.log("更新前",this.$el,document.getElementById("first").innerHTML);
            },
            updated() {
                console.log("更新后",this.$el,document.getElementById("first").innerHTML);
            },
            beforeDestroy() {
                console.log("销毁前",document.getElementById("first").innerHTML,this.$el)
            },
            destroyed() {
                console.log("销毁后")
                
            },
        })
    </script>
</body>
</html>