/// <summary> /// 清空指定目录下所有文件及子目录,但该目录依然保存. /// </summary> /// <param name="env"></param> /// <param name="directoryPath">指定目录的绝对路径</param> public static void ClearDirectory(this IHostingEnvironment env, string directoryPath) { directoryPath = Path.Combine(env.ContentRootPath, directoryPath); if (IsExistDirectory(directoryPath)) { //删除目录中所有的文件 string[] fileNames = GetFileNames(directoryPath); foreach (var fileName in fileNames) { env.DeleteFile(fileName); } //删除目录中所有的子目录 string[] directoryNames = GetDirectories(directoryPath); foreach (var directoryName in directoryNames) { env.DeleteDirectory(directoryName); } } }