遍历文件夹下的子文件夹及文件，将文件压缩处理

void Compression()
{
    Info = "正在处理中。。。";

    DirectoryInfo folder = new DirectoryInfo("c:\\temp");

    try
    {
        FileSystemInfo[] files = folder.GetFileSystemInfos();
        for (int i = 0; i < files.Length; i++)
        {
            Compression(files[i]);
        }
    }
    catch (Exception ex)
    {
        MessageBox.Show(ex.Message);
        return;
    }

    Info = "压缩完毕。";
}
void Compression(FileSystemInfo finfo)
{
    if (!finfo.Exists) return;

    DirectoryInfo dir = finfo as DirectoryInfo;
    if (dir != null)
    {
        FileSystemInfo[] files = null;
        try
        {
            files = dir.GetFileSystemInfos();
        }
        catch (Exception ex)
        {
            MessageBox.Show(ex.Message);
            return;
        }
        for (int i = 0; i < files.Length; i++)
        {
            FileInfo file = files[i] as FileInfo;
            if (file != null)
            {//是文件
                Info = String.Format("处理 {0}", file.FullName);
                try
                {
                    //压缩文件。。。
                }
                catch
                {
                    logger.Error(String.Format("处理{0}失败", file.FullName));
                }
            }
            else
            {
                Compression(files[i]);
            }
        }
    }
    else
    {
        FileInfo file = finfo as FileInfo;
        Info = String.Format("处理 {0}", file.FullName);
        try
        {
            //压缩文件。。。
        }        
        catch        
        {            
            logger.Error(String.Format("处理{0}失败", file.FullName));        
        }    
    }
}