主域名与子域名cookie共享，如何删除啊？

[acol]

 public static void setCookie(string key, string value, int timeout)
    {
        try
        {
            HttpCookie cookie = new HttpCookie(key);
            value = HttpUtility.UrlEncodeUnicode( value );
            cookie.Value = value;
            cookie.Domain = ".99tjq.com";
            cookie.Secure = false;
            if (timeout != 0)
                cookie.Expires = DateTime.Now.AddHours(Convert.ToInt32(timeout));

            HttpContext.Current.Response.Cookies.Add(cookie);

        }
        catch
        {
        }
    }

 public static void KillCookie(string key)
    {
        HttpCookie cookie = new HttpCookie(key);
        cookie.Expires = DateTime.Now.AddDays(-1.0);
        HttpContext.Current.Response.Cookies.Add(cookie);
    }

KillCookie怎么删除不了cookie??

[MSDNXGH]

再帮你顶。。

[shuo20080722]

你在KillCookie 里也需要加上cookie.Domain = ".99tjq.com";
才可以

[acol]

等的好急啊

[MSDNXGH]

好，帮你顶。。接分。。。。