csmaca_csmacd

利用udp包实现聊天。利用udp包实现聊天。(use udp packet to realize chat over net.)

取得计算机网卡的一些信息的代码-made some computer card information source

单载波调制和OFDM调制各自的优缺点分析及应用前景()

LDAP 协议的完整描述,开发环境是基于linux的.如果有问题,请给我写信-LDAP complete description of the agreement, the development environment is based on Linux. If there"s a problem, please write to me

一个完善的升级程序，可供编写自动升级程序模块参考。(A complete update program solution.)

JavaScript和Flash的通信-JavaScript and Flash Communication

易语言网络注册登录，易语言写的网络相关程序，很好的参考。(Easy language network login, easy network related written procedures, a good reference.)

c# 扫描IP Http Headerusing 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 System.Threading;using System.IO;namespace HScan{ public partial class Form1 : Form { int _currentThreads = 0; int _maxThreads = 100; Thread main = null; Thread mt = null; List threads = new List(); public Form1() { InitializeComponent(); Control.CheckForIllegalCrossThreadCalls = false; } private void btnStart_Click(object sender, EventArgs e) { btnStart.Enabled = false; if (txtStart.Text.Trim() == "") { MessageBox.Show("起始IP不能为空."); return; } if (txtEnd.Text.Trim() == "") { MessageBox.Show("结束IP不能为空."); return; } int ts = Convert.ToInt32(txtThreads.Text); _maxThreads = ts; string startIp = txtStart.Text; string endIp = txtEnd.Text; TParameter tp=new TParameter(); tp.StartIp=startIp; tp.EndIp=endIp; tp.ThreadCount=ts; main = new Thread(new ParameterizedThreadStart(StartMe)); main.Start(tp); } protected void ThreadManage() { Thread c=null; while (true) { System.Object lockThis = new System.Object(); lock (lockThis) { for (int i = 0; i < threads.Count; i ) { if (threads[i] != null && !threads[i].IsAlive) { c = threads[i]; break; } } if (c != null) { threads.Remove(c); } } } } protected void StartMe(object ob) { mt = new Thread(new ThreadStart(ThreadManage)); mt.Start(); TParameter p = ob as TParameter; string curIp = p.StartIp; while (true) { for (int i = 0; i < _maxThreads; i ) { if (curIp != "") { if (_currentThreads >= _maxThreads) break; System.Object lockThis = new System.Object(); lock (lockThis) { _currentThreads ; if (_currentThreads > _maxThreads) _currentThreads = _maxThreads; string tip = curIp; Thread t = new Thread(new ParameterizedThreadStart(Run)); t.Start(tip); threads.Add(t); curIp = IPUtility.getLastIp(curIp, p.EndIp, 1); } } else { break; } } } } protected void Run(object ob) { string ip = ob.ToString(); SocketGetHead h = new SocketGetHead(); string ret = h.GetHtml(ip, 80); if (ret.IndexOf("DVRDVS-Webs") > 0) { ListViewItem item = new ListViewItem(); item.SubItems[0].Text = (listView1.Items.Count 1).ToString(); ListViewItem.ListViewSubItem lvSubItem = new ListViewItem.ListViewSubItem(); lvSubItem.Text = ip; item.SubItems.Add(lvSubItem); lvSubItem = new ListViewItem.ListViewSubItem(); lvSubItem.Text = "DVRDVS-Webs"; item.SubItems.Add(lvSubItem); listView1.Items.Add(item); } System.Object lockThis = new System.Object(); lock(lockThis) { lblCurIp.Text = ip; _currentThreads--; if (_currentThreads < 0) _currentThreads = 0; } } private void tsmCopy_Click(object sender, EventArgs e) { if (listView1.SelectedItems.Count > 0) { string ip = listView1.SelectedItems[0].SubItems[1].Text; Clipboard.SetText(ip); } } private void tsmExport_Click(object sender, EventArgs e) { StreamWriter writer = new StreamWriter(AppDomain.CurrentDomain.BaseDirectory "\export.txt",true); foreach (ListViewItem item in listView1.Items) { string ip=item.SubItems[1].Text; writer.WriteLine(ip); writer.Flush(); } writer.Flush(); writer.Close(); MessageBox.Show("导出成功!"); } private void Form1_FormClosing(object sender, FormClosingEventArgs e) { try { if (mt != null) { mt.Interrupt(); mt.Abort(); } foreach (Thread t in threads) { t.Interrupt(); t.Abort(); } if (main != null) { main.Interrupt(); main.Abort(); } } catch { } Thread.Sleep(5000); } private void btnStop_Click(object sender, EventArgs e) { try { if (mt != null) { mt.Interrupt(); mt.Abort(); } foreach (Thread t in threads) { t.Interrupt(); t.Abort(); } if (main != null) { main.Interrupt(); main.Abort(); } } catch { } btnStart.Enabled = true; } }}

JSP访问数据库及分页的功能-JSP access to the database and the function Pagination

说明：  /** * 动态数组的模板类 * 1.支持字符索引 * 2.方便的添加删除修改任意一项 * 最后更新 2004-8-9 yzh **1.优化了字符索引的运作方式，使用数组存储 **2.重写了底层数据的存储，将连续性的存储方式改为了非连续, *** 从而很好有效地支持了“引用”,并且让数据的删除增加变的更为快速 * 用法如： * YCArray<int,int> test * test.Add("Number2",4) * test.Add("Number1",2) * printf("%d %d",test["Number1"],test["Number2"]) * 显示： * 2 4 ******* ******* History: 2004-11-19 修改了析构函数,解决了索引没有释放的bug **/(/*** dynamic array template class* 1. Support characters Index* 2. Add convenience to delete arbitrary* a final update 2004-8-9 yzh** 1. Character Index optimized mode of operation, the use of storage arrays** 2 . a rewrite of the underlying data storage, storage continuity conversion of non-continuous, and thus good*** effective support to the "quote", and let the data changed to delete the more rapid* usage such as :* YCArraylt; int, intgt; test* test. Add ( "Number2", 4)* test.Add ( "Number1", 2)* printf ( "% d% d", test [ "Number1"] test [ "Number2"])* Display :** 2 4************* History : 2004-11-19 revised the destructors, the index did not address the release of bug** /)