<!DOCTYPE html>
<html>
<head>
<meta charset="utf-8">
<meta http-equiv="X-UA-Compatible" content="IE=edge">
<title>vue</title>
<link rel="stylesheet" href="">
<!--<script src="https://cdn.jsdelivr.net/npm/vue/dist/vue.js"></script>-->
<script type="text/javascript" src="../js/vue.js"></script>
</head>
<body>
<div id="vue">
<div v-if="regType=='email'">
<!--选择不同的单选,会把当前value的值赋值给下面data库里regType,从而影响上面的if判断的结果,达到切换显示手机或者邮箱输入框的效果-->
邮箱:<input name="username" key="email" type="text">
</div>
<div v-else>
手机:<input name="username" key="phone" type="text">
</div>
<br>
<!--选择不同的单选,会影响到下面data库里regType里的值-->
<input v-model="regType" name="email" value="email" type="radio">邮箱
<input v-model="regType" name="phone" value="phone" type="radio">手机
</div>
</body>
<script type="text/javascript">
var app = new Vue({
el: "#vue",
data:{
regType:'email',
}
});
</script>
</html>
效果:
