<!DOCTYPE html>
<html lang="en">
<head>
<meta charset="UTF-8">
<meta name="viewport" content="width=device-width,initial-scale=1">
<title>helloworld</title>
<script type="text/javascript" src="../assets/js/vue.js"></script>
</head>
<body>
<h1>v-if&v-else&v-show</h1>
<hr>
<div id="app">
<div v-if="isLogin">你好，徐睿</div>
<div v-else>请登录</div>
<div v-show="isLogin">hello</div>
</div>
<script type="text/javascript">
var app = new Vue({
el:‘#app‘,
data:{
isLogin:true
}
})
</script>
</body>
</html>
原文：http://www.cnblogs.com/xu951128/p/7215259.html