第四种/CheckImage.aspx.cs

微信扫码关注公众号，代码整理好后第一时间通知你。

using System;
using System.Collections.Generic;
using System.Linq;
using System.Web;
using System.Web.UI;
using System.Web.UI.WebControls;
using System.Drawing.Imaging;
using System.IO;
// 下载于www.51aspx.com
namespace 验证码.第四种
{
    public partial class CheckImage : System.Web.UI.Page
    {
        protected void Page_Load(object sender, EventArgs e)
        {
            if (!Page.IsPostBack)
            {
                RandImage randImage = new RandImage();
                System.Drawing.Image image = randImage.GetImage();
                System.IO.MemoryStream memoryStream = new MemoryStream();
                image.Save(memoryStream, ImageFormat.Jpeg);
                Response.ClearContent();
                Response.ContentType = "image/gif";
                Response.BinaryWrite(memoryStream.ToArray());
                image.Dispose();
                Response.End();
            }
        }

        protected void btnLogin_Click(object sender, EventArgs e)
        {

        }
    }
}