<!DOCTYPE html>
<html lang="en">
<head>
<meta charset="UTF-8">
<meta name="viewport" content="width=device-width, initial-scale=1.0">
<meta http-equiv="X-UA-Compatible" content="ie=edge">
<script type="text/javascript" src="../js/vue.js"></script>
<title>Document</title>
</head>
<body>
<div id="root">
<!-- <h1 v-show="false">欢迎{{name}}</h1> -->
<!-- <div v-if="false">欢迎{{name}}</div> -->
<div>欢迎{{n}}</div>
<button @click="n++">点我n+1</button>
<!-- <div v-show="n==1">111</div>
<div v-show="n==2">222</div>
<div v-show="n==3">333</div> -->
<!-- v-if最开始使用并且不允许打断 -->
<!-- <div v-if="n==1">111</div>
<div v-else-if="n==2">222</div>
<div v-else-if="n==3">333</div>
<div v-else>aaa </div>
-->
<!--
<h2 v-show="n===1">你好</h2>
<h2 v-show="n===1">小白</h2>
<h2 v-show="n===1">zjk</h2> -->
<!-- teplate与v-if的配合使用 -->
<template v-if="n===1">
<h2 >你好</h2>
<h2 >小白</h2>
<h2 >zjk</h2>
</template>
</div>
<script>
const vm=new Vue({
el:"#root",
data:{
name:"xiao bai",
n:0
}
})
</script>
</body>
</html>
