个人感觉完全为了Ajax而Ajax就不好了!JavaScript在客户端处理不是更理想吗? 
 复制代码 代码如下:  function Timer(span)  {  var tmp = new Date();  var milsecs=Date.parse(tmp.getMonth()+"-"+tmp.getDay()+"-"+tmp.getFullYear()+" "+document.getElementById('lbl_Hour').innerText+":"+document.getElementById('lbl_Minute').innerText+":"+document.getElementById('lbl_Second').innerText);  var timer = new Date(milsecs+span);  var seconds,minutes,hours,date;  if(timer.getSeconds()<10)  seconds = "0"+timer.getSeconds();  else  seconds = timer.getSeconds();  if(timer.getMinutes()<10)  minutes = "0"+timer.getMinutes();  else  minutes = timer.getMinutes();  if(timer.getHours()<10)  hours = "0"+timer.getHours();  else  hours = timer.getHours();  date=timer.getDate();  document.getElementById('lbl_Second').innerText = seconds;  document.getElementById('lbl_Minute').innerText = minutes;  document.getElementById('lbl_Hour').innerText = hours;  }  //得到服务器时间每隔updatespan分钟校验一次,每秒更新一次本地时钟  function GetServerTime(updatespan)  {  var clientspan = 1*1000;  //更新本地时钟  setInterval("Timer("+clientspan+")",clientspan);  //同步服务器时钟  setInterval("window.location.href='当前URL'", updatespan);  }
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