function setCookie(name, value) {//两个参数，一个是cookie的名子，一个是值 
 var Days = 30; //此 cookie 将被保存 30 天 
 var exp = new Date(); //new Date("December 31, 9998"); 
 exp.setTime(exp.getTime() + Days * 24 * 60 * 60 * 1000); 
 document.cookie = name + "=" + escape(value) + ";expires=" + exp.toGMTString(); 
} 
function getCookie(name) {//取cookies函数   
 var arr = document.cookie.match(new RegExp("(^| )" + name + "=([^;]*)(;|$)")); 
 if (arr != null) return unescape(arr[2]); return null; 
} 

HttpCookie cookie = new HttpCookie("UserCode", username); 
   cookie.Expires = DateTime.Now.AddDays(10);// (365 * 24 * 3600);   
   this.Response.AppendCookie(cookie); 
   HttpCookie cookieDeviceId = new HttpCookie("DeviceId", rt.DeviceId); 
   cookieDeviceId.Expires = DateTime.Now.AddDays(10);// (365 * 24 * 3600);   
   this.Response.AppendCookie(cookieDeviceId); 

HttpCookie ttHttpCookie = this.Request.Cookies.Get("UserCode"); 
HttpCookie ttHttpCookieDeviceId = this.Request.Cookies.Get("DeviceId"); 
string code = Request.QueryString["code"]; 
if (ttHttpCookie == null || ttHttpCookieDeviceId == null) 
{ 
 WeiApi(code); 
} 
else { 
 string username = ttHttpCookie.Value; 
 string DeviceId = ttHttpCookieDeviceId.Value; 
 if (string.IsNullOrEmpty(username) || string.IsNullOrEmpty(DeviceId)) 
 { 
  WeiApi(code); 
 } 
 else { 
  new AppException("读取Cookies UserCode=" + username + ",DeviceId=" + DeviceId); 
  initSession(username, DeviceId); 
 } 
}