JS操作Cookies的简单例子

时间:2015/12/3 22:42:00来源:互联网 作者:flyso 点击: 1352 次
<script type="text/javascript"> 
function Set(Cookie_name)  
{  
 var Then = new Date()  
 Then.setTime(Then.getTime() + 1*3600000 ) //小时  
 document.cookie = Cookie_name+"=true;expires="+ Then.toGMTString()  
}  
function Get(Cookie_name)  
{  
 var cookieString = new String(document.cookie)  
 var cookieHeader = Cookie_name+"="  
 var beginPosition = cookieString.indexOf(cookieHeader)  
 if (beginPosition != -1) //cookie已经设置值,应该 不显示提示框  
 {  
   alert(Cookie_name+"返回"+cookieString.substring(beginPosition + cookieHeader.length));  
 }  
 else //cookie没有设置值,应该显示提示框  
 {  
  alert("Cookie 未找到!");  
 }  
}  
function Move(Cookie_name)  
{  
 document.cookie = Cookie_name+"=;expires=Fri, 02-Jan-1970 00:00:00 GMT";  
}  
</script> 
<P> 
<INPUT onclick="Set('steven lu')" type=button value=设置cookie值><P> 
<INPUT onclick="Get('steven lu')" type=button value=查看cookie值><P> 
<INPUT onclick="Move('steven lu')" type=button value=清除cookie值>        


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