<html>
head>
script src="https://cdn.jsdelivr.net/npm/vue/dist/vue.js"></script>
</bodydiv id="app">
input type="button" value="显示与否" @click="changisshow"h2 v-show="isshow">{{message}}h2div>
var app = new Vue({
el: '#app',data: {
isshow: false,message: "这是内容",},methods: {
changisshow: function () {
this.isshow = !this.isshow;
},})
>
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