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Vue2.0点击切换类名改变样式的方法

1、使用index

<!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=edge">
 <title>vue导航</title>
 <style media="screen">
 *{
 margin:0;
 padding: 0;
 }
 ul li{
 list-style: none;
 }
 .navul{
 margin:100px auto 20px;
 overflow: hidden;
 }
 .navul li{
 background-color: #5597b4;
 padding:18px 30px;
 float:left;
 color: #fff;
 font-size: 18px;
 cursor: pointer;
 }
 .active{
 background-color: #5597b4;
 }
 .home .home,.new .new,.contact .contact,.service .service{
 background-color: skyblue;
 }
 .checked{
  background: #eff4f7;
 }
 </style>
</head>
<body>
 <div id="nav">
  <ul>
   <li v-for="(relation,index) in relations" v-bind:id="relation.id" v-bind:id="relation.id" v-bind:class="{checked:index==nowIndex}" v-on:click="relationClick(index)">
    <i></i>
    <span class="">{{relation.text}}</span>
   </li>
  </ul>
 </div>
 
 <script src="/UploadFiles/2021-04-02/vue.js">

2、通过改变当前值切换类名

<!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=edge">
 <title>点击切换</title>
 <style>
 .glyphicon-minus{
  color:#08f;
 }
 .glyphicon-plus{
  color:purple;
 }
 
 </style>
 <script src="/UploadFiles/2021-04-02/vue.js">拓展知识:vue点击改变样式的实例

data里

isActive:-1,

method里

checkedItem(index){
 this.isActive=index;
},

页面里

<div v-for="(item,index) in nameoptions" v-bind:class="{active:index==isActive}" @click="checkItem(index)>{{item.name}}</div>

以上这篇Vue2.0点击切换类名改变样式的方法就是小编分享给大家的全部内容了,希望能给大家一个参考,也希望大家多多支持。