图片读取

System.Byte[] IamageCount;

Image img;

priavte void ReadPic()

{

string FileName=图片路径;

      if(this.JudgeFile(FileName)==false )
      {
        MessageBox.Show("找不到图像文件！","消息提示",MessageBoxButtons.OK,MessageBoxIcon.Information);
      }

      FileStream ImageStream= new FileStream(FileName,FileMode.Open,FileAccess.Read);   //文件流
  
      int ImageLength =Convert.ToInt32(ImageStream.Length);

      this.IamgeCount =new Byte[ImageLength];

      this.img =Image.FromStream(ImageStream);
 
      this.picR4.Image=this.img;

}

   /// <summary>
  /// 判断图像文件是否存在该路径中
  /// </summary>
  /// <param name="fileName"></param>
  /// <returns></returns>
  private bool JudgeFile(string fileName)
  {
   if(File.Exists(fileName)==true )
   {
    return true;
   }
   else
   {
    return false;
   }
  }