javaScript刷新页面

刷新页面有一下几种：

1、直接在页面上： 每两秒刷新页面

<meta http-equiv="refresh" content="2">

2、每秒刷新页面

 setTimeout('myrefresh()',1000);
 function myrefresh() {
 window.location.reload();
 } 

3、每整点刷新一次

 setInterval("flash()",1000);
      function  flash(){
         var now=new Date();
         var s=now.getSeconds();
         var m=now.getMinutes();
         if(m=="0"&& s=="0"){
             window.location.reload();
         }
     };

4、每两小时刷新一次页面

  setInterval("flash2Hour()", 1000);
     function flash2Hour(){
         var now=new Date();
         var h=now.getHours();
         var m=now.getMinutes();
         var s=now.getSeconds();
         var arr=["0","2","4","6","8","10","12","14","16","18","20","22"];
         for(var i=0;i<arr.length;i++){
             if(h==arr[i]){
                 if(m=='0'&& s=='0'){
                     window.location.reload();
                 }
             }
         }
     };