先說一下產品需求，就是有幾個tab欄，每個tab欄對應的ajax請求不一樣，內容區域一樣，內容為實時刷新數據，每3s需要重新請求，返回的數據在內容區域展示，每點擊一次tab欄需停止其他tab欄ajax請求，防止阻塞，首次加載頁面的時候又不能5個ajax同時請求，只需要請求第一個就好
也沒有必要建立5個區域，控制顯示隱藏，浪費性能，業務代碼就不貼了，把大概原理的代碼貼上來
先是用jq實現了一版
<!DOCTYPE html> <html lang="en"> <head> <meta charset="UTF-8"> <meta name="viewport" content="width=device-width, initial-scale=1.0, maximum-scale=1.0, user-scalable=no"/> <meta http-equiv="X-UA-Compatible" content="IE=edge,chrome=1"> <meta name="renderer" content="webkit"> <title>Title</title> <script src="http://code.jquery.com/jquery-2.1.1.min.js"></script> </head> <body> <div> <ul> <li>click</li> <li>click</li> <li>click</li> <li>click</li> <li>click</li> </ul> </div> <script> var arr=[ function(){console.log(0);}, function(){console.log(1);}, function(){console.log(2);}, function(){console.log(3);}, function(){console.log(4);} ]; var seti=setInterval(arr[0],1000) $('li').click(function(){ clearInterval(seti) seti=setInterval(arr[$(this).index()],1000) }) </script> </body> </html>
再看vue版
<!DOCTYPE html> <html lang="en"> <head> <meta charset="UTF-8"> <meta name="viewport" content="width=device-width, initial-scale=1.0, maximum-scale=1.0, user-scalable=no"/> <meta http-equiv="X-UA-Compatible" content="IE=edge,chrome=1"> <meta name="renderer" content="webkit"> <title>Title</title> <script src="https://unpkg.com/vue@2.2.6/dist/vue.min.js"></script> </head> <body> <div id="vm"> <button @click="tab(0)">click0</button> <button @click="tab(1)">click1</button> <button @click="tab(2)">click2</button> <button @click="tab(3)">click3</button> <button @click="tab(4)">click4</button> <div> <p>{{show}}</p> </div> </div> <script> var vm1 = new Vue({ el: '#vm', data: { arr:[ function(){console.log(0);}, function(){console.log(1);}, function(){console.log(2);}, function(){console.log(3);}, function(){console.log(4);} ], time1:'', time2:'', show:'', num:0, }, methods: { tab: function(index){ //如果每個tab的方法不一樣，提前用一個數組把方法保存起來 clearInterval(this.time1) this.time1=setInterval(this.arr[index],1000) //以下是調用同一種方法的時候可以不需要設置數組 this.num = 0 clearInterval(this.time2) this.time2 = this.fun(index) }, fun:function(index){ var _this=this; return setInterval(function(){ //寫個隨機數顯示在頁面，具體業務需求應該是ajax請求 var random=String(parseInt(Math.random()*100000000000)) //字符一個一個顯示在頁面上 _this.show=index+random.substring(0,_this.num++); },300) } }, mounted:function(){ this.time1=setInterval(this.arr[0],1000) } }); </script> </body> </html>