vue.js--Tab选项卡

雨点打透心脏的1/2处 2021-09-14 02:00 455阅读 1赞

一.简单tab切换案例

使用vue.js实现tab切换很简单，先使用v-for把数据遍历渲染到页面上，v-for中有一个index表示索引，将index作为参数传入到tab（index）这个函数中，在data中定义一个num变量，在title中如果index==num,这个title就会添加一个acive的class。当然，这个num是需要在tab（）这个函数中不断改变的，需要将传入的索引值赋值给num，这样在.tabCon里，我们就可以用v-show做下判断。v-show=”index==num”,如果等于的话，当前的内容就会显示。否则隐藏。

<!DOCTYPE html>
    <html lang="en">
    <head>
     	<meta charset="UTF-8">
     	<title>Document</title>
    	<style type="text/css">
    	*{padding: 0;margin: 0}
    	#app{
    		width: 500px;
    		height: 300px;
    		margin: 30px auto;
    		background-color: #ddd;
    	}
    	#app ul{
    		height: 50px;
    		line-height: 50px;
    		width: 100%;
    		background-color: #999;
    		cursor: pointer;
    	}
    	#app ul li{
    		display: inline-block;
    		padding:0 10px;
    		color:#fff;
    	}
    	#app .active{
    		background:#eee;
    		color: #f00;
    	}
    	.tabCon{
    		padding: 20px;
    	}
    	</style>
    </head>
    <body>
    
    <div id="app">
        <ul>
         <li v-for="(item,index) in tabs" :class="{active:index == num}"@click="tab(index)">{
       {item}}</li>
        </ul>
        <div class="tabCon">
            <div v-for='(itemCon,index) in tabContents' v-show="index == num">{
       {itemCon}}</div>
        </div>
    </div>
    <script type="text/javascript" src='js/vue.js'></script>
    <script>
    var vm = new Vue({
        el: '#app',
        data: {
            tabs: ["水果", "服饰","头饰"],
            tabContents: ["苹果", "连衣裙","发夹"],
            num: 0
        },
        methods: {
            tab(index) {
                this.num = index;
            }
        }
    });
    </script>
    </body>
    </html>

![20170802155610169][]

二.Vue.js编写tab滑块效果

<!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.js编写tab滑块效果</title>
      <style>
        *{margin:0;padding:0;}
        #tabPanel .itemname{height:40px;width:180px;margin-bottom:10px;}
        #tabPanel .itemcontent{height:40px;width:180px;}
        #tabPanel .addbtn{width:100px;height:30px;}
        #tabPanel .active{background:#eee;}
        #tabPanel{height:340px;width:500px;margin:100px auto;}
        #tabPanel .tab{height:40px;background:#ccc;margin-top:10px;}
        #tabPanel .tab ul li{list-style: none;float:left;width:80px;text-align:center;
        	line-height:40px;}
        #tabPanel .content{height:300px;width:500px;background:#eee;}
      </style>
     
    </head>
    <body>
    <div id="tabPanel">
    	<label>添加滑块名称：<input type="text" v-model="tabItem" class="itemname"></label><br>
    	<label>添加滑块内容：<input type="text" v-model="tabContent" class="itemcontent"></label>
    	<input type="button" value="添加选项" @click="addItem()" class="addbtn">
    	<div class="tab">
    		<ul>
    		<li v-for="(value, index) in tabs" v-bind:class="{active: index==num}" 
    		@mouseover="toggle(index)" @dblclick="del(index)">{
       {value}}</li>
    		</ul>
    	</div>
    	<div class="content">
    		<div class="box" v-for="(value, index) in tabContents" v-show="index == num" 
    		contenteditable="true" @blur="editContent(index,value)">{
       {value+index}}</div>
    	</div>
    </div>
    </body>
    <script src="js/vue.js"></script>
    <script>
    var v = new Vue ({
        el: "#tabPanel",
        data: {
    		tabs: ["第一项","第二项"],
    		tabContents: ["第一项内容","第二项内容"],
    		num: 0,
    		tabItem:"",
    		tabContent:""
        },
        methods:{
    		//切换滑块
    		toggle: function(index){
    			this.num = index;
    		},
    		//添加滑块
    		addItem: function(){
    			if(this.tabItem == "" || this.tabContent == ""){
    			  alert("填写完整的名称和内容");
    			}else{
    			  this.tabs.push(this.tabItem);
    			  this.tabContents.push(this.tabContent);
    			}
    		},
    		//双击删除滑块
    		del: function(index){
    			this.tabs.splice(index,1);
    			this.tabContents.splice(index,1)
    		},
    		//编辑选项内容
    		editContent: function(index,value){
    			this.tabContents[index] = value;
    			console.log(this.tabContents);
    		}
        }
    });
    </script>
    </html>

![20170802160523641][]

[20170802155610169]: /images/20210813/d0c36702758f4caea4c49883405a0b84.png
[20170802160523641]: /images/20210813/e81115004c6c40448929ee7446cd8662.png