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Vue-vue.js表单校验

2019-04-25 10:29 59 查看
[code]<!DOCTYPE html>
<html lang="en">
<head>
<meta charset="UTF-8">
<title>Title</title>
<script src="js/vue.js" type="text/javascript" charset="utf-8"></script>
<style>
.error{color:red;font-size: x-small}
.success{color:green;font-size: x-small}
</style>
</head>
<body>
<div id="app">
用户名:<input type="text" placeholder="不少于 6 个字符"
v-model="uname" @keyup="validText">
<span :class="errorClass">{{errorText}}</span>
</div>
</body>
<script>
var app = new Vue({
el: '#app',
data: {
uname:'',
errorClass:{
error:false,
success:false
},
errorText:''
},
methods:{
validText: function () {
//用户名长度小于 6,验证失败
if(this.uname.length<6){
this.errorClass.error = true;
this.errorClass.success = false;
this.errorText = '*校验失败!';
}else{
this.errorClass.error = false;
this.errorClass.success = true;
this.errorText = '*校验成功!';
}
}
}
});
</script>
</html>

 

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