问题
当在用户账号中输入数值后发现需要切换用户邮箱登录时,切换后之前的内容不会被清除掉,所以会存在这样一个小问题。
解决问题

代码
DOCTYPE html>
<html>
<head>
<meta charset="utf-8">
<meta name="author" content="xiaonaihu" />
<meta name="generator" content="HBuilder X" />
<title>用户登录切换的小案例小问题的处理title>
<script src="../../lib/vue.min.js" type="text/javascript" charset="utf-8">script>
head>
<body>
<div id="app">
<span v-if = "isUser">
<label for="username">用户账号label>
<input type="text" id="username" placeholder="用户账号" key = "username" />
span>
<span v-else>
<label for="email">用户邮箱label>
<input type="text" id="email" placeholder="用户邮箱" key = "email">
span>
<button @click = "UserName">切换类型button>
div>
<script type="text/javascript">
var app = new Vue({
el: "#app",
data:{
isUser:true
},
methods:{
UserName() {
this.isUser = !this.isUser;
}
}
});
script>
body>
html>