A simple port scanner ... ... multi

1. 目录simpletcp是通过Winsock API实现TCP聊天的程序，程序中集成了服务器端和客户端；2. 目录simpleudp是通过Winsock API实现UDP聊天的程序；3. 目录winsock control是通过winsock控件实现聊天的程序，其中子目录tcp是通过winsock控件实现tcp聊天的程序、而子目录udp是通过winsock控件实现udp聊天的程序；-1. Contents simpletcp through Winsock API TCP chatting procedures , the integration process server and the client; 2. Contents simpleudp through Winsock API UDP chatting procedures; 3. Contents winsock control is achieved through chat winsock control procedures, tcp subdirectory which is achieved through winsock tcp Chat Control procedures and subdirectories udp through winsock Controlware udp chatting procedures;

UDP收包程序例子，基于非阻塞模式socket，并利用select（）实现接收超时。-UDP packet admission procedure examples, based on the non-blocking mode of socket, and use select () to receive overtime realize.

实时监测局域网内部的计算机 实时监测局域网内部的计算机-real-time monitoring of computer LAN internal real-time monitoring of internal computer LAN

服务器端通过socket()系统调用创建一个Socket数组后(即设定了接受连接客户的最大数目)，与指定的本地端口绑定bind()，就可以在端口进行侦听listen()。如果有客户端连接请求，则在数组中选择一个空Socket，将客户端地址赋给这个Socket。然后登录成功的客户就可以在服务器上聊天了。-Server-side through the socket () system call to create a Socket after the array (that is set to receive the maximum number of connected customers), with a specified local port to bind bind (), will be able to listen on port listen (). If the client has to connect the request, then select an empty array Socket, the client address assigned to the Socket. And then sign in the success of customers can chat on the server.

这是我用VB编写的-This is my prepared by the VB

可以完成基本的网页浏览似的学生掌握HTTP协议的相关知识，加深对客户/服务器的工作模式的认识，并进一步锻炼学生的网络软件编程能力和解决实际问题的能力。-Can complete a basic web browser HTTP protocol like students to master knowledge, deepen their understanding of client/server mode of understanding and to further our students the capacity and network software programming to solve practical problems.

一个代码很规范的程序，实现对目标IP的主机进行端口扫描，其中线程数在程序中内嵌，无法自定义。可以自定义要扫描的端口号，有操作界面，操作简单，运行流畅，不会出现运行过慢的情况，不会卡顿，很好的例子。源码中有详细的注释。

在TCP/IP编程中，Windows环境里 完成端口 模型性能最高，最稳定，响应速度最快，该 源代码就是一个例子，值得研究哦。- In the TCP/IP programming, in the Windows environment completes the port model performance high, stablest, the speed of response is quickest, this source code is an example, is worth studying oh.

组播测试,等等。-multicast testing, and so on.

本程序没有对包的内容解码，仅仅打印出包的二进制内容； *提供最简单的捕获过滤器，即可以指定捕获感兴趣的源IP和目的IP。-the right procedures were not decode the contents of packages, just print out the packets of binary content;* Provide the most simple capture filters, which can capture interest in the designated IP source and destination IP.