htzxyzr的专栏

CREATE TABLE [dbo].[ImageTable] ( [ImageID] [int] IDENTITY (1, 1) NOT NULL , [ImageData] [image] NULL , [ImageContentType] [varchar] (50) COLLATE Chinese_PRC_CI_AS NULL , [ImageDescription] [varchar]

  新建一个页面image.aspx,添加命名空间：using System.Drawing.Imaging;using System.IO;  然后在Page_load事件拷入如下代码：   //生成4位的验证码   string tmp = RndNum(4);   HttpCookie a = new HttpCookie("ImageV",tmp);      Response.Cooki