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Vue2.0点击切换类名改变样式的方法

网络编程 2021-07-04 16:46www.168986.cn编程入门
今天长沙网络推广就为大家分享一篇Vue2.0点击切换类名改变样式的方法，具有很好的参考价值，希望对大家有所帮助。一起跟随长沙网络推广过来看看吧

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="js/vue.js" charset="utf-8"></script>
 <script type="text/javascript">
 var nav = new Vue({
  el:'#nav',
  data:{
  relations: [
   {text:'项目',id:'program'},
   {text:'人员',id:'person'},
   {text:'机构',id:'anization'},
   {text:'技术',id:'tech'},
   {text:'地区',id:'location'},
   {text:'国家',id:'country'}
  ],
  nowIndex:0
  // willShow:false
  },
  methods:{
  relationClick:function(index){
   
   this.nowIndex=index;
  }
  }
 });
 </script>
</body>
</html>

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="js/vue.js"></script>
</head>
<body>
 
 <div id="box">
  <div style="width:100px; height:100px; background: #6bacdf;" v-show="isDisplay"></div>
 
  <div class="form-group">
  <button class="btn"
    :class="[isShow?'btn-primary':'']"
    @mouseover="toggleShow()"
    @mouseout="toggleShow()"
    v-text="btnStyle"></button>
 
  </div>
 
  <div class="">
  <button class="btn"
    :class="[isTrue?'glyphicon-minus':'glyphicon-plus']"
     @click="toggleBar()">切换类名按钮</button>
 
  </div>
 </div>
 
 
<script type="text/javascript">
 
 
  new Vue({
  el:'#box',
  data:{
   isDisplay:false,
   isShow: false,
   isTrue:true,
   btnStyle: 'Default'
  },
  methods:{
   toggleShow: function() {
   this.isShow = !this.isShow;
   },
   toggleBar:function(){
   this.isTrue = !this.isTrue;
   }
  },
  watch: {
   isShow: function(newVal) {
   // console.log(newVal);
   newVal ? this.btnStyle = 'Primary' : this.btnStyle = 'Default'
   }
  },
  });
 
 
 </script>
</body>
</html>

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长沙网络推广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狼蚁SEO。

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