摘要：
using System;using System.Web;using System.Drawing;using System.Drawing.Drawing2D;using System.Web.SessionState;public class WaterMark : IHttpHandler,IRequiresSessionState//要使用session必须实现该接口，记的要导入System{ public void ProcessRequest (HttpContext context) { string cheakCode=GenCode(5);//产生5位随机字符 c... 阅读全文
