穿透防火墙 mfc界面

网络自动更新代码； 有一定的参考意义，vb代码-network automatically updated code; A certain reference value, vb code

Windows下的ICMP封装-Clcmp class which can echo

判断一个IP是否在某个网段（子网掩码和网络地址、两个IP之间)-To determine whether an IP in a network segment (subnet mask and network address, between the two IP)

315M或413M普通无线发送接受模块的发送和接收程序。也就是最便宜那种通信模块。-315M or 413M accept ordinary wireless sending module for sending and receiving procedures. That is, the cheapest kind of communication module.

实现远程监控设备的数据采集与维护主要实现如下功能：登记，通道选择，实时监控,录像，保存，播放，快速／慢速播放，暂停／恢复,单帧播放／单帧回放，抓图功能，分辨率设置等功能-Remote monitoring equipment for data acquisition and maintenance of the main achieve the following functions: registration, channel selection, real-time monitoring, recording, save, play, fast/slow play, pause/resume, single-frame play/single-frame playback, drawings function, resolution setting and other functions

运用随机字符和数字的组合生成图片的验证码。-java- JAVASCRIPT

一个Client/Server Socket类 -An Socket class of Client and Server

聊天程序 客户端和服务端进行交互的 ,多用户可以聊天-Chat programs and services to the client-side interactive, multi-user chat

socket常用函数说明，是初学者查询socket函数功能得好文章-socket commonly used functions that are beginners inquiries good article socket Function

Simulates Different types of Network protocols