URL获取上级目录

 ?　　　 /// <summary> ???????/// 获取上级目录 ???????/// </summary> ???????/// <param name="url">完整Url</param> ???????/// <returns></returns> ???????public string GetParentDirectory(string url) ???????{ ???????????return GetParentDirectory(new Uri(url)); ???????} ???????/// <summary> ???????/// 获取上级目录 ???????/// </summary> ???????/// <param name="uri">uri</param> ???????/// <returns></returns> ???????public string GetParentDirectory(Uri uri) ???????{ ???????????return uri.Scheme + "://" + uri.Host + string.Join("", new List<string>(uri.Segments).GetRange(0, uri.Segments.Length - 1)); ???????}