using System;
using System.Data;
using System.Configuration;
using System.Collections;
using System.Web;
using System.Web.Security;
using System.Web.UI;
using System.Web.UI.WebControls;
using System.Web.UI.WebControls.WebParts;
using System.Web.UI.HtmlControls;
using System.Drawing.Imaging;
using System.Drawing.Drawing2D;
using System.Drawing;
public partial class guestBook_ValitionNo : System.Web.UI.Page
{
protected void Page_Load(object sender, EventArgs e)
{
Random rd = new Random(); //创建随机数对象
int valationNo = 1000 + rd.Next(8999);//取得4位随机数
//建立位图对象
Bitmap newBitmap = new Bitmap(34, 16, PixelFormat.Format32bppArgb);
//根据上面创建的位图对象创建绘图面
Graphics g = Graphics.FromImage(newBitmap);
//以指定的颜色填充矩形区
g.FillRectangle(new SolidBrush(Color.White), new Rectangle(0, 0, 34, 16));
//创建字体对象
Font textFont = new Font("Times New Roman", 10);
//创建RectangleF结构指定一个区域
RectangleF rectangle = new RectangleF(6, 0, 34, 16);
//使用指定的颜色填充上面RectangleF结构指定的矩形区域
g.FillRectangle(new SolidBrush(Color.BurlyWood), rectangle);
//在上面填充的矩形区域中填充上面生成的随机数
g.DrawString(valationNo.ToString(), textFont, new SolidBrush(Color.Blue), rectangle);
//把创建的位图保存到指定的路径
newBitmap.Save(Server.MapPath("images") + "\VaImg.gif", ImageFormat.Gif);
newBitmap.Save(Response.OutputStream, ImageFormat.Gif);
}
}
using System;
using System.Data;
using System.Configuration;
using System.Web;
using System.Web.Security;
using System.Web.UI;
using System.Web.UI.WebControls;
using System.Web.UI.WebControls.WebParts;
using System.Web.UI.HtmlControls;
public partial class _Default : System.Web.UI.Page
{
protected void Page_Load(object sender, EventArgs e)
{
}
}