C# 操作COOKIES通用类

using  System;
using  System.Web;

///   <summary>
///  Cookie 的摘要说明
///   </summary>
public   class  Cookie
{
      ///   <summary>
      ///  创建Cookies
      ///   </summary>
      ///   <param name="strName"> Cookie 主键 </param>
      ///   <param name="strValue"> Cookie 键值 </param>
      ///   <param name="strDay"> Cookie 天数 </param>
      ///   <code> Cookie ck = new Cookie(); </code>
      ///   <code> ck.setCookie("主键","键值","天数"); </code>
      public   bool  setCookie( string  strName,  string  strValue,  int  strDay)
     {
          try
         {
             HttpCookie Cookie  =   new  HttpCookie(strName);
             Cookie.Expires  =  DateTime.Now.AddDays(strDay);
             Cookie.Value  =  strValue;
             System.Web.HttpContext.Current.Response.Cookies.Add(Cookie);
              return   true ;
         }
          catch
         {
              return   false ;
         }
     }

      ///   <summary>
      ///  读取Cookies
      ///   </summary>
      ///   <param name="strName"> Cookie 主键 </param>
      ///   <code> Cookie ck = new Cookie(); </code>
      ///   <code> ck.getCookie("主键"); </code>
      public   string  getCookie( string  strName)
     {
         HttpCookie Cookie  =  System.Web.HttpContext.Current.Request.Cookies[strName];
          if  (Cookie  !=   null )
         {
              return  Cookie.Value.ToString();
         }
          else
         {
              return   null ;
         }
     }

      ///   <summary>
      ///  删除Cookies
      ///   </summary>
      ///   <param name="strName"> Cookie 主键 </param>
      ///   <code> Cookie ck = new Cookie(); </code>
      ///   <code> ck.delCookie("主键"); </code>
      public   bool  delCookie( string  strName)
     {
          try
         {
             HttpCookie Cookie  =   new  HttpCookie(strName);
             Cookie.Expires  =  DateTime.Now.AddDays( - 1 );
             System.Web.HttpContext.Current.Response.Cookies.Add(Cookie);
              return   true ;
         }
          catch
         {
              return   false ;
         }
     }
}