content from http://jashliao.pixnet.net/blog/post/223534989

FileStream fs = File.OpenRead(StrDestFilePath); //OpenRead[二進位讀檔]
int filelength = 0;
filelength = (int)fs.Length; //獲得檔長度
Byte[] image = new Byte[filelength]; //建立一個位元組陣列
fs.Read(image, 0, filelength); //按位元組流讀取
System.Drawing.Image result = System.Drawing.Image.FromStream(fs);
fs.Close();
 

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