VUE的tab頁面切換的四種方法
阿新 • • 發佈:2021-04-26
1.靜態實現方法:
效果圖:
<!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互動</title> <link rel="stylesheet" href="../css/demo.css" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" > </head> <body> <div class="demo_warp" id="my"> <ul class="tab_tit"> <li :class="n==1?'active':''" @click="n=1">標題一</li> <li :class="n==2?'active':''" @click="n=2">標題二</li> <li :class="n==3?'active':''" @click="n=3">標題三</li> <li :class="n==4?'active':''" @click="n=4">標題四</li> </ul> <!-- neirong --> <div class="tab_con"> <div v-show="n==1">內容一</div> <div v-show="n==2">內容二</div> <div v-show="n==3">內容三</div> <div v-show="n==4">內容四</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; }
js
window.onload=function(){ new Vue({ el:'#my',data:{//響應式的資料 data變化頁面也會跟著變化 n:1 } }) }
2.第二種模擬動態方法
效果如上圖所示:(省略)
程式碼:
<!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互動</title> <link rel="stylesheet" href="../css/demo.css" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" > </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,data:{//響應式的資料 data變化頁面也會跟著變化 n:0,title:["標題一","標題二","標題三","標題四"],con:["內容一","內容二","內容三","內容四"] } }) }
3.第三種動態資料方法
效果圖:(滾動條的實現方式)
程式碼:
<!DOCTYPE html>
<html lang="en">
<head>
<meta charset="UTF-8">
<meta http-equiv="X-UA-Compatible" content="IE=edge">
<meta RbUiIqjrname="viewport" content="width=device-width,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>
<程式設計客棧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{
d程式設計客棧isplay: 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,lists:[//可以有很多條資料//陣列物件的形式
{title:'標題一',con:'內容一'},{title:'標題二',con:'內容二'},{title:'標題三',con:'內容三'},{title:'標題四',con:'內容四'},{title:'標題五',con:'內容五'},{title:'標題六',con:'內容六'},{title:'標題七',con:'內容七'},{title:'標題八',con:'內容八'},]
}
})
}
4.動態實現方法(模擬後臺資料實現)
效果圖:
程式碼:
<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互動</title> <link rel="stylesheet" type="text/css" href="../css/demo.css" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" > </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> <!-- -----------動態資料----------- --> <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(85,177); text-align: center; }
tab.js
window.onl程式設計客棧oad=function(){ new Vue({ el:'#my',data(){//響應式的資料 data變化頁面也會跟著變化 return{ n:0,m:0,lists:[ {title:'標題一',],itemList:[] } },methods:{ getList:function(){//this:--【函式和定時器的this指向都是window (而我們是要this指向vue例項)】 var that=this;//區域性定義改變this指向 //每執行此方法,提前清空陣列,保證往下執行程式碼,陣列為空 // 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 是一個node中介軟體 (middeware)框架
如果把一個http處理過程比作是汙水處理 中介軟體就像是一層層的過濾網
每個中介軟體把http處理過程中通過改寫 request或(和)response的資料、狀態、實現了特定的功能
中介軟體就是類似於一個過濾器的東西 在客戶端和應用程式之間的一個處理請求和響應的方法.
*/
//建立中間介 啟動服務 node node.js
var connect = require('connect');//建立連線
var bodyParser=require('body-parser');//body解析 用於處理 JSON、RAW、Text和URL編碼的資料.
var lists = {};
var app = connect()
.use(bodyParser.json())//JSON解析
.use(bodyParser.urlencoded({extended:true}))
//use()方法還有一個可選的路徑字串 對傳入請求的URL的開始匹配
//use()方法來維護一箇中間件佇列
.use(function(req,res,next){
//跨域處理
//website you wish to allow to connect
res.setHeader('Access-Control-Allow-origin','*');//允許任何源
//Request Methods you width to allow
res.setHeader('Access-Control-Allow-Methods','CET','POST','OPTIONS','PUT','PATCH','DELETE');//允許任何方法
//Request headers you wish to allow
res.setHeader('Access-Control-Allow-Headers','*');//允許任何型別
res.writeHead(200,{"Content-Type":"text/plain/xml;charset=utf-8"});//utf-8轉碼
next();//next方法就是一個遞迴呼叫
})
.use('/list',function(req,next){
var data={
"code":"200","msg":"success","result":[
{name:"手機",state:"採購一"},{name:"包包",state:"採購二"},{name:"衣服",state:"採購三"},{name:"電腦",state:"採購四"},{name:"電子產品",state:"採購五"}
]
}
res.end(JSON.stringify(data));
next();
})
.use('/list_get',next){
var data={
"code":'200',"result":lists
}
res.end(JSON.stringify(data));
next();
})
.use('/list_add',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',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 40www.cppcns.com00.');
外掛:(需要下載的外掛)
1.先啟動服務node nodeServer.js(不能關閉,否則就會調取不到資料)
2.之後執行html頁面 。
專案遇到的bug:
vue中v-for迴圈遍歷後,當前內容不渲染的問題,因為this指向的問題導致.
解決方法一:
解決方法二:
解決方法三:
總結:url:介面要寫自己後臺的介面哦,這裡只是模擬的介面,nodeServer.js檔案可以定義多種格式的資料型別,也可以在本地自定義巢狀多種需要的型別,先試用之後可以在調後臺資料。
推薦學習VUE:文件 ::https://cn.vuejs.org/v2/guide/list.html
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