#region
    /// <summary>
    /// 计算文件大小函数,Size为字节大小
    /// </summary>
    /// <param name="Size">初始文件大小</param>
    /// <returns></returns>
    public string CountSize(long Size)
    {
        string m_strSize = "";
        long FactSize = 0; FactSize = Size;
        if (FactSize <= 1024)
            m_strSize = FactSize.ToString() + "Byte";
        if(FactSize>=1024&&FactSize<=1048576)
        m_strSize=(FactSize/1024).ToString ()+"K";
        if (FactSize >= 1048576 && FactSize <= 10485760)
        m_strSize = (FactSize / 1024 / 1024).ToString() + "M";
        return m_strSize;
    }
    #endregion