/// <summary>
/// 删除过旧的空子目录
/// </summary>
/// <param name="path">包含临时文件的目录，删除时会查找所有子目录</param>
/// <param name="timeAgo">指定一个时间间隔，超过这个时间间隔前的文件将被删除</param>
/// <returns>过程中所有遇到的异常</returns>
public static List <Exception> DeleteEmptyDirectories(string path, TimeSpan timeAgo)
{
TempFilesUtils filesUtils = new TempFilesUtils();
filesUtils.DeleteDirectories(path, timeAgo);
return(filesUtils.Exceptions);
}
