代码如下：
private void CreateImage(string checkCode)
{
int iwidth = (int)(checkCode.Length * 18);
System.Drawing.Bitmap image = new System.Drawing.Bitmap(iwidth, 38);
Graphics g = Graphics.FromImage(image);
Font f = new System.Drawing.Font("Arial ", 16,FontStyle.Strikeout);//, System.Drawing.FontStyle.Bold);
Brush b = new System.Drawing.SolidBrush(Color.Black);
Brush r = new System.Drawing.SolidBrush(Color.FromArgb(166, 8, 8));
g.Clear(System.Drawing.ColorTranslator.FromHtml("#99C1CB"));//背景色
char[] ch = checkCode.ToCharArray();
for (int i = 0; i < ch.Length; i++)
{
if (ch[i] >= '0' && ch[i] <= '9')
{
//数字用红色显示
g.DrawString(ch[i].ToString(), f, r, 3 + (i * 15), 3);
}
else
{ //字母用黑色显示
g.DrawString(ch[i].ToString(), f, b, 3 + (i * 15), 3);
}
}
System.IO.MemoryStream ms = new System.IO.MemoryStream();
image.Save(ms, System.Drawing.Imaging.ImageFormat.Jpeg);
//history back 不重复
Response.Cache.SetNoStore();//这一句
Response.ClearContent();
Response.ContentType = "image/Jpeg";
Response.BinaryWrite(ms.ToArray());
g.Dispose();
image.Dispose();
}
这是创建图片的方法，求大神说一下怎么设置居中，感觉字太往上了点，谢谢
