关于自动刷新的限制问题？

Question

使用 setInterval 实现定时操作 加 cookies 保存次数.

Answer 1

写一个循环
string a="";
if(a="")
{
for(int i=0;i<50;i++)
{
//刷新代码
a="dfdfdf";
}
}

Answer 2

....
<%
  if request.querystring("sta")="fresh" then
     session("a")=1
  else   
     Session("a")=Session("a")+1
  end if   
%>
....
<script language="javascript">
<!--
var limit="0:5"
if (document.images)
{
  var parselimit=limit.split(":")
  parselimit=parselimit[0]*5+parselimit[1]*1
}function beginrefresh()
{if(<%=Session("a")%> < 6)
{
 if (!document.images)
   return
   if (parselimit==1)
   { 
     //window.location.reload();
     window.location.href="要刷新的页面.asp";
   }  
   else
   {
    parselimit-=1
    curmin=Math.floor(parselimit/5)
    cursec=parselimit%5
    setTimeout("beginrefresh()",1000)
   }
 }
} 
window.onload=beginrefresh
-->
</script>
...
<%
  if session("a")>5 then
     freshstr="<a href=fresh.asp?sta=fresh target=_self><font face=宋体 color=#FFFFCC size=2px>再次刷新</font></a>"
  else
     freshstr=""
  end if
  response.write freshstr
%>

Answer 3

demo.htm<frameset cols="0,*" id="baobao">
  <frame src="left.htm" name="leftFrame" scrolling="NO" >
  <frame src="main.htm" name="mainFrame">
</frameset>left.htm<input type=text name=total value="0">main.htm<script>
timer = window.setInterval("test(3)",2000)
function test(n)
{
    var total = parent.leftFrame.document.all.total.value-0;
    total++;
    parent.leftFrame.document.all.total.value=total;
    if(total==n){
        var bln=confirm("刷新"+n+"次完毕,还刷新吗");
        if(!bln)window.clearInterval(timer)
        else {
                 parent.leftFrame.document.all.total.value=0;
                 window.location.reload(true)
                }
    }
    else  window.location.reload(true);
}
</script>

Answer 4

解释一下,
左边的frame用来记数的.
右边的就是你的页面啦.