/// <summary>
/// 判断是否有图片
/// </summary>
/// <param name="folderPath">指定文件夹路径</param>
/// <returns>bool</returns>
public bool judgeExpensionName(string folderPath)
{
    bool isTp = false;

    if (Directory.Exists(folderPath))
    {
        foreach (string itemFilePath in Directory.GetFiles(folderPath))
        {
            FileInfo fi = new FileInfo(itemFilePath);

            //创建时间    fi.CreationTime;
            //获取上次访问当前目录时间 fi.LastAccessTime
            //获取上次写入文件目录的时间 fi.LastWriteTime

		if (fi.Extension.Equals(".jpg") || fi.Extension.Equals(".JPG") || fi.Extension.Equals(".jpge") || fi.Extension.Equals(".JPEG") || fi.Extension.Equals(".gif") || fi.Extension.Equals(".GIF"))
		{
			isTp = true;
			break;
		}

		else
					isTp = false;
        }
    }

    return isTp;
}




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