摘要： 该程序介绍如何创建验证码，并把验证保存在Session中首先建立“类库”项目，名字为Validate，再在里面新建Validate.cs文件。文件代码如下：using System;using System.Collections.Generic;using System.Linq;using System.Text;using System.IO;using System.Drawing;using System.Drawing.Imaging;using System.Drawing.Drawing2D;namespace ASPNETAJAXWeb.ValidateCode.Page{ 阅读全文