VUE的tab页面切换的几种方法?_小言_互联网的博客

VUE的tab页面切换的几种方法?

2021-05-02 16:56 287人阅读评论(0)

1.静态实现方法:
效果图:

<!DOCTYPE html>
<html lang="en">
<head>
  <meta charset="UTF-8">
  <meta http-equiv="X-UA-Compatible" content="IE=edge">
  <meta name="viewport" content="width=device-width, initial-scale=1.0">
  <title>view的tab交互</title>
  <link rel="stylesheet" href="../css/demo.css">
</head>
<body>
<div class="demo_warp" id="my">
<ul class="tab_tit">
  <li :class="n==1?'active':''" @click="n=1">标题一</li>
  <li :class="n==2?'active':''" @click="n=2">标题二</li>
  <li :class="n==3?'active':''" @click="n=3">标题三</li>
  <li :class="n==4?'active':''" @click="n=4">标题四</li>
</ul>
<!-- neirong -->
<div class="tab_con">
  <div v-show="n==1">内容一</div>
  <div v-show="n==2">内容二</div>
  <div v-show="n==3">内容三</div>
  <div v-show="n==4">内容四</div>
</div>
</div>
<script src="https://cdn.jsdelivr.net/npm/vue/dist/vue.js"></script>
<script> Vue.config.productionTip=false </script>  
<script src="../js/tab.js" type="text/javascript"></script>
</body>
</html>

css

*{
  margin: 0;
  padding: 0;
  box-sizing:border-box;
}
body,html{
 height: 100%;
}
.demo_warp .tab_tit {
  display: flex;
  flex: 1;
  margin:.2rem;
}
.demo_warp .active { 
  color:red;
  background-color: cadetblue;
}
.demo_warp ul li {
  list-style: none;
  width: 23%;
  text-align: center;
  background-color: #ccc;
  margin:0 1%;
}
.demo_warp .tab_con {
  width: 100%;
  height: 3rem;
  border:1px solid rgb(85, 85, 177);
  text-align: center;
}

window.onload=function(){
  new Vue({
    el:'#my',
      data:{//响应式的数据 data变化页面也会跟着变化
     n:1
    }
  })

}

2.第二种模拟动态方法
效果如上图所示:（省略）
代码:

<!DOCTYPE html>
<html lang="en">
<head>
  <meta charset="UTF-8">
  <meta http-equiv="X-UA-Compatible" content="IE=edge">
  <meta name="viewport" content="width=device-width, initial-scale=1.0">
  <title>view的tab交互</title>
  <link rel="stylesheet" href="../css/demo.css">
</head>
<body>
<div class="demo_warp" id="my">
<ul class="tab_tit">
  <li v-for="(v,i) in title" :class="n==i?'active':''" @click="n=i">{
  {v}}</li>
</ul>
<!-- neirong -->
<div class="tab_con">
  <div v-for="(v,i) in con" v-show="n==i">{
  {v}}</div>
</div>
</div>
<script src="https://cdn.jsdelivr.net/npm/vue/dist/vue.js"></script>
<script> Vue.config.productionTip=false </script>  
<script src="../js/tab.js" type="text/javascript"></script>
</body>
</html>

css

*{
  margin: 0;
  padding: 0;
  box-sizing:border-box;
}
body,html{
 height: 100%;
}
.demo_warp .tab_tit {
  display: flex;
  flex: 1;
  margin:.2rem;
}
.demo_warp .active { 
  color:red;
  background-color: cadetblue;
}
.demo_warp ul li {
  list-style: none;
  width: 23%;
  text-align: center;
  background-color: #ccc;
  margin:0 1%;
}
.demo_warp .tab_con {
  width: 100%;
  height: 3rem;
  border:1px solid rgb(85, 85, 177);
  text-align: center;
}

window.onload=function(){
  new Vue({
    el:'#my',
      data:{//响应式的数据 data变化页面也会跟着变化
     n:0,
     title:["标题一","标题二","标题三","标题四"],
     con:["内容一","内容二","内容三","内容四"]
    }
  })
}

3.第三种动态数据方法
效果图:(滚动条的实现方式)

代码:

<!DOCTYPE html>
<html lang="en">
<head>
  <meta charset="UTF-8">
  <meta http-equiv="X-UA-Compatible" content="IE=edge">
  <meta name="viewport" content="width=device-width, initial-scale=1.0">
  <title>view的tab交互</title>
  <link rel="stylesheet" href="../css/demo.css">
</head>
<body>
<div class="demo_warp" id="my">
<ul class="tab_tit">
  <li v-for="(v,i) in lists" :class="n==i?'active':''" @click="n=i">{
  {v.title}}</li>
</ul>
<!-- neirong -->
<div class="tab_con">
  <div v-for="(v,i) in lists" v-show="n==i">{
  {v.con}}</div>
</div>
</div>
<script src="https://cdn.jsdelivr.net/npm/vue/dist/vue.js"></script>
<script> Vue.config.productionTip=false </script>  
<script src="../js/tab.js" type="text/javascript"></script>
</body>
</html>

css

*{
  margin: 0;
  padding: 0;
  box-sizing:border-box;
}
body,html{
 height: 100%;
}
.demo_warp .tab_tit{
  display: flex;
  justify-content: space-between;
  white-space: nowrap;
  overflow-y: hidden;
  overflow-x: scroll; 
   margin:1% 1% 1% 0;
}
  ::-webkit-scrollbar{
   display: none;
  }
.demo_warp .active { 
  color:red;
  background-color: cadetblue;
}
.demo_warp ul li {
  list-style: none;
  padding:1.2% 3.2%;
  text-align: center;
  background-color: #ccc;
  margin-left: 1%;
}
.demo_warp .tab_con {
  width: 100%;
  height: 3rem;
  border:1px solid rgb(85, 85, 177);
  text-align: center;
}

window.onload=function(){
  new Vue({
    el:'#my',
      data:{//响应式的数据 data变化页面也会跟着变化
     n:0,
     lists:[//可以有很多条数据//数组对象的形式
       {title:'标题一',con:'内容一'},
       {title:'标题二',con:'内容二'},
       {title:'标题三',con:'内容三'},
       {title:'标题四',con:'内容四'},
       {title:'标题五',con:'内容五'},
       {title:'标题六',con:'内容六'},
       {title:'标题七',con:'内容七'},
       {title:'标题八',con:'内容八'},
     ]
    }
  })
}

4.动态实现方法(模拟后台数据实现)
效果图:

代码:

<html lang="en">
<head>
  <meta charset="UTF-8">
  <meta http-equiv="X-UA-Compatible" content="IE=edge">
  <meta name="viewport" content="width=device-width, initial-scale=1.0">
  <title>view的tab交互</title>
  <link rel="stylesheet" type="text/css" href="../css/demo.css">
</head>
<body>
<div class="demo_warp" id="my">
  <ul class="tab_tit">
    <li v-for="(v,i) in lists" :class="m==i?'active':''" @click="m=i" :key="i.title">{
  {v.title}}</li>
  </ul>
  <!-- neirong -->
  <div class="tab_con">
    <div v-for="(v,i) in lists" v-show="m==i" :key="i.con">{
  {v.con}}</div>
  </div>
  <!-- -----------动态数据----------- -->
<ul class="tab_tit">
  <li v-for="(item, index) in itemList" :class="n==index?'active':''" @click="n=index" :key="index">{
  {item.name}}</li>
</ul>
<!-- neirong -->
<div class="tab_con">
  <div v-for="(item, index) in itemList" v-show="n==index" :key="index">{
  {item.state}}</div>
</div>
</div>
<script src="https://cdn.jsdelivr.net/npm/vue/dist/vue.js"></script>
<script> Vue.config.productionTip=false </script>  
<script src="../node_modules/axios/dist/axios.js"></script>
<script src="../js/tab.js" type="text/javascript"></script>
</body>
</html>

css

*{
  margin: 0;
  padding: 0;
  box-sizing:border-box;
}
body,html{
 height: 100%;
}
.demo_warp .tab_tit{
  display: flex;
  justify-content: space-between;
  white-space: nowrap;
  overflow-y: hidden;
  overflow-x: scroll; 
   margin:1% 1% 1% 0;
}
  ::-webkit-scrollbar{
   display: none;
  }
.demo_warp .active { 
  color:red;
  background-color: cadetblue;
}
.demo_warp ul li {
  list-style: none;
  padding:1.2% 3.2%;
  text-align: center;
  background-color: #ccc;
  margin-left: 1%;
}
.demo_warp .tab_con {
  width: 100%;
  height: 3rem;
  border:1px solid rgb(85, 85, 177);
  text-align: center;
}

tab.js

window.onload=function(){
  new Vue({
    el:'#my',
      data(){//响应式的数据 data变化页面也会跟着变化
       return{
          n:0,
          m:0,
         lists:[
       {title:'标题一',con:'内容一'},
       {title:'标题二',con:'内容二'},
       {title:'标题三',con:'内容三'},
       {title:'标题四',con:'内容四'},
       {title:'标题五',con:'内容五'},
       {title:'标题六',con:'内容六'},
       {title:'标题七',con:'内容七'},
       {title:'标题八',con:'内容八'},
       ], 
        itemList:[]
       }
     },
    methods:{
      getList:function(){//this:--【函数和定时器的this指向都是window (而我们是要this指向vue实例)】
        var that=this;//局部定义改变this指向
        //每执行此方法，提前清空数组，保证往下执行代码，数组为空
        // this.itemList = [];
        axios({
          method:'get',
          url:'http://localhost:4000/list'
        }).then(function(res){
            console.log(res);
            that.itemList = res.data.result;
        }).catch(function(error){
           console.log(error);
        })
      }
    },
    mounted:function(){
         this.getList();
    },
  })
}

nodeServer.js

 /*
  connect 是一个node中间件 (middeware)框架
  如果把一个http处理过程比作是污水处理 中间件就像是一层层的过滤网
  每个中间件把http处理过程中通过改写 request或(和)response的数据、状态、实现了特定的功能
  中间件就是类似于一个过滤器的东西 在客户端和应用程序之间的一个处理请求和响应的方法.
 */

//创建中间介 启动服务 node node.js  
var connect = require('connect');//创建连接
var bodyParser=require('body-parser');//body解析 用于处理 JSON、RAW、Text和URL编码的数据.
var lists = {};
var app = connect()
    .use(bodyParser.json())//JSON解析
    .use(bodyParser.urlencoded({extended:true}))
   //use()方法还有一个可选的路径字符串 对传入请求的URL的开始匹配
   //use()方法来维护一个中间件队列
   .use(function(req,res,next){
    //跨域处理
    //website you wish to allow to connect
    res.setHeader('Access-Control-Allow-origin','*');//允许任何源
    //Request Methods you width to allow
    res.setHeader('Access-Control-Allow-Methods','CET','POST','OPTIONS','PUT','PATCH','DELETE');//允许任何方法
    //Request headers you wish to allow
    res.setHeader('Access-Control-Allow-Headers','*');//允许任何类型
    res.writeHead(200,{"Content-Type":"text/plain/xml;charset=utf-8"});//utf-8转码
    next();//next方法就是一个递归调用
   })
   .use('/list',function(req,res,next){
     var data={
       "code":"200",
       "msg":"success",
       "result":[
         {name:"手机",state:"采购一"},
         {name:"包包",state:"采购二"},
         {name:"衣服",state:"采购三"},
         {name:"电脑",state:"采购四"},
         {name:"电子产品",state:"采购五"}
      ]
     }
     res.end(JSON.stringify(data));
     next();
   })
   .use('/list_get',function(req,res,next){
    var data={
      "code":'200',
      "msg":"success",
      "result":lists
    }
    res.end(JSON.stringify(data));
    next();
   })
   .use('/list_add',function(req,res,next){
     if(req.method=='POST'){
       console.log(req.body.name);
       lists.push({name:req.body.name,state:req.body.state,id:index++});
       var data={"code":200,"msg":"success"};
       res.end(JSON.stringify(data));
     }else{
       res.end(JSON.stringify({}));
     }
     next();
   })
   .use('/list_del',function(req,res,next){
    console.log(req.body.id);
    //lists=lists.filter(list=>list.id!=req.body.id);
    for(var i=0;i<lists.length;i++){
      if(req.body.id===lists[i].id){
            lists.splice(i,1);
      }
    }
    console.log(lists);
    var data={"code":200,"msg":"success"};
    res.end(JSON.stringify(data));
    next();
   })
   .listen(4000);
   console.log('Server started on port 4000.');

插件:（需要下载的插件）

1.先启动服务node nodeServer.js（不能关闭，否则就会调取不到数据）
2.之后运行html页面。