public ActionResult Logout()
{
//清除权限URL缓存
WebCache.RemovePermissionUrlCache(LoginUser);
//清除导航树缓存
WebCache.RemoveTopMenuCache(LoginUser);
WebCache.RemoveLeftMenuCache(LoginUser);
Session["LoginUser"] = null;
HttpCookie cookie = new HttpCookie("LoginUserID");
cookie.Value = "";
cookie.Expires = DateTime.Now.AddDays(-1);
Response.Cookies.Add(cookie);
//HttpCookie skin = new HttpCookie("SkinClass");
//skin.Value = "";
//skin.Expires = DateTime.Now.AddDays(-1);
//Response.Cookies.Add(skin);
return Redirect("/Admin/Login");
}