c# IE 清除缓存

　　　　 Response.Buffer = true;
        Response.ExpiresAbsolute = System.DateTime.Now.AddSeconds(-1);
        Response.Expires = 0;
        Response.CacheControl = "no-cache";
        Response.Cache.SetCacheability(System.Web.HttpCacheability.NoCache);
        Response.Cache.SetNoStore();