讀取圖片文件(C#實現)

 /// <summary>
        /// 讀取圖片文件
        /// </summary>
        /// <param name="path">圖片文件路徑</param>
        /// <returns>圖片文件</returns>
        private Bitmap ReadImageFile(String path)
        {
            Bitmap bitmap=null;
            try
            {
                FileStream fileStream = File.OpenRead(path);
                Int32 filelength = 0;
                filelength = (int)fileStream.Length;
                Byte[] image = new Byte[filelength];
                fileStream.Read(image, 0, filelength);
                System.Drawing.Image result = System.Drawing.Image.FromStream(fileStream);
                fileStream.Close();
                bitmap = new Bitmap(result);
            }
            catch (Exception ex)
            { 
                //  異常輸出
            }
            return bitmap;
        }