/// <summary>
/// 获得某一站点所有文章的发布时间，主要为后台查询文章用
/// </summary>
/// <param name="siteId"></param>
/// <returns></returns>
public static List <Tuple <string, string> > GetAllPublishDateBySiteId(int siteId)
{
return(ArticleManage.GetAllPublishDateBySiteId(siteId));
}