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">
        <p id="first">{{msg}}</p>
        <button @click="changeMain">修改内容</button>
    </div>
    <script src="../vue初阶/vue.js"></script>
    <script>
        var vm = new Vue({
            data:{
                msg:"哈哈哈哈哈"
            },
            methods: {
                changeMain() {
                    this.msg = '呜呜呜呜';
                    console.log(document.getElementById("first").innerHTML,'111')
                    // this.$nextTick 解决数据未及时更新的问题  异步任务微任务
                    this.$nextTick(()=>{
                        console.log(document.getElementById("first").innerHTML,'222')
                    })
                }
            },
        }).$mount("#app")
    </script>
</body>
</html>