/// <summary>
        /// 将TIF文件转换为GIF文件列表
        /// </summary>
        /// <param name="fileName">要转换的TIF文件</param>        
        /// <returns>转换后生成的GIF文件路径</returns>
        public static IList<string> ConvertTifToGif(string fileName)
        {
            IList<string> list = new List<string>();string dic = AppDomain.CurrentDomain.BaseDirectory + "\\tempgif\\";if (!Directory.Exists(dic))
            {
                Directory.CreateDirectory(dic);
            }if (string.IsNullOrEmpty(fileName))
            {
                throw new ArgumentException("转换的TIF文件路径不能为空");
            }

            FileInfo file