<!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=adge">
<title>Document</title>
<script src="vue.js"></script>
</head>
<body>
<div id="app">
<input type="button" value="显示登录" @click="flag=true">
<input type="button" value="显示注册" @click="flag=false">
<login v-if="flag"></login>
<reg v-else="flag"></reg>
</div>
</body>
<script>
Vue.component("login",{
template:"<h1>用户登录</h1>"
})
Vue.component("reg",{
template:"<h1>用户注册</h1>"
})
//创建Vue实例，得到ViewModel
var vm=new Vue({
el:"#app",
data:{
flag:true//如果flag为true，显示登录，为false显示注册
},
methods:{}
});
</script>
</html>
