/// <summary>
/// 根据文件的相对路径，删除文件
/// </summary>
/// <param name="relativeFilePath"></param>
/// <returns></returns>
public bool DeleteByFilePath(string relativeFilePath, string userId)
{
IFileUpload dal = baseDal as IFileUpload;
return(dal.DeleteByFilePath(relativeFilePath, userId));
}
