Vue2.0点击切换类名改变样式的方法
程序员文章站
2022-03-07 17:17:36
1、使用index
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:'organization'},
{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。
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