zouahaijun的专栏

using System; using System.Collections.Generic; using System.ComponentModel; using System.Data; using System.Drawing; using System.Linq; using System.Text; using System.Windows.Forms; using Sy

public partial class Form1 : Form     {         private delegate void InvokeCallback(int pos); //定义回调函数（代理）格式         public Form1()         {             InitializeComponent();         }

public class LoctionFilter implements Filter {     public void destroy() {              }     public void doFilter(ServletRequest request, ServletResponse response,             FilterChain ch