如何动态生成图像文件

Question

用gdi+啊，可以在asp.net里用gdi+啊

Answer 1

Bitmap bm=new Bitmap(300,100);
Graphics g=Graphics.FromImage(bm);
g.Clear(Color.Yellow);
StringFormat sf=new StringFormat();
sf.Alignment=StringAlignment.Center;
sf.LineAlignment=StringAlignment.Center;
Random ran=new Random();
int i=ran.Next(1,10000);
g.DrawString(i.ToString(),new Font("黑体",12),new SolidBrush(Color.Black),new Rectangle(0,0,300,100),sf);
}bm.Save(Response.OutputStream,ImageFormat.Jpeg);