/// <summary>
/// 將文件轉換爲二進制數據
/// </summary>
/// <param name="filename"></param>
/// <returns></returns>
private byte[] Getbyte(string filename)
{
if (filename.Length < 0) return null;
else
{
//將文件加載入文件流中
FileStream fs = new FileStream(filename, FileMode.OpenOrCreate, FileAccess.ReadWrite);
//創建二進制流並將圖片劉讀取爲二進制流
BinaryReader biny = new BinaryReader(fs);
//返回二進制數據
byte[] get = biny.ReadBytes((int)fs.Length);
biny.Close();
fs.Close();
return get;
}
}
這裏用圖片作爲簡單測試;
private void 打開圖片ToolStripMenuItem_Click(object sender, EventArgs e)
{
OpenFileDialog op = new OpenFileDialog();
op.Filter = "jpg類型文件(*.jpg)|*.jpg|BMP類型文件(*.bmp)|*.bmp";
if (op.ShowDialog()==DialogResult.OK)
{
//打開圖片,獲得文件流,調用方法
byte[] getby = Getbyte(op.FileName);
//將文件劉放入緩衝區中
MemoryStream me = new MemoryStream(getby);
//加載內存流,顯示圖片
pictureBox1.Image = Image.FromStream(me);
me.Dispose();
me.Close();
}
}