luyuliu的专栏

1、先安装反编译软件（如需要反编译软件的同学，请留言）2、在反编译软件中打开需要修改的.dll文件。3、打开.dll文件后，右键导出.dll文件。4、选择导出的路径（新建一个文件夹方便管理），开始导出start。5、导出后的.dll文件。6、在开发工具visualstudio中打开项目。7、在导出的文件夹内打开以.

using System.Security.Cryptography;  //添加引用         ///         /// 加密        ///         ///         public string md5Pas(string pas)        {            MD5 md5 = new MD5CryptoServiceP

1、Request.UrlReferrer 请求的来源2、Request.UserHostAddress获得访问者的IP地址。3、Request.Cookies获得浏览器发过来的浏览器端的Cookie,从他里面读取cookie值，比如context.Request.Cookies["mysessionid"],使用Request.Cookies的时候只是读取，将Cookies写回浏览器要用

MVC下：后台代码：public ActionResult sys(string page)        {               if (page == null)            {                string sql = "select top 15 * from dingdinfo ORDER BY dingdh desc";

例：using System;using System.Collections.Generic;using System.Linq;using System.Web;using System.Data.OracleClient;    //添加引用using System.Data;namespace bookInfo{ public class OracleD

例子：如我想上传一个图片到服务器端：asp页面           imageUpLoad">                    ....js代码：function UpLoad(){如果有其他的值，判断下是否为空.form1.submit();}  后台代码 public ActionResult fileUpLoad(

打开webconfig文件，在  节点下，加入如下红色代码                                                                                          ......                                         ......

using System;using System.Collections.Generic;using System.Linq;using System.Web;using System.Data.SqlClient;using System.Data;namespace bookInfo{    public class DataBase    {

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.W