<!DOCTYPE html>
<script src="../vue-2.6.14.js"></script>


<div id="aaa">
    <h1 v-show="2==20">gggggg</h1>
    <h1>{{msg1}}</h1>
    <button @click=add()>ddddd</button>
    <button @click=changeMsg("mmm")>改变msg</button>
    <h2>{{date}}</h2>
</div>
</html>

<script>
    var vm=new Vue({
        el:"#aaa",
        data:{
            "msg1":2233322,
            "date":new Date()
        },
        methods:{
            add(){
                console.log("qqq")
            },
            changeMsg(bbb){
                var now = new Date()
                console.log(bbb)
                this.msg1=now  
            }
        }
    })
</script>