以三种方式实现PING操作

socket实现udp组播，需要用UDP通信可以参照-udp multicast socket implementation

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

以工作区的形式有效的管理工程的所有数据,是现行的比较主要的一种管理方式，尤其对大型工程很有效!-Work area to form effective management of all project data, is present mainly as a comparison of management methods, especially for large-scale projects very effective!

一个关于串口通信编程的小程序，使用visual c++编写。-Serial communication programming on small procedures, the use of visual c++ Prepared.

雪人论坛 v2.1 简单美化版，支持access、SqlServer -Snowman Forum v2.1 simple Meihuaban support access, the Slammer

Client程序同样分别创建一个TCP socket 和一个UDP socket，首先client使用TCP socket连接TCP Server。 连接成功后显示提示信息； 然后client端向TCP Server发送“GET UDP PORT”字符串，Server收到后向client回送自己的UDP Server 端口号（即Client端仅知道TCP Server的端口号而不知道UDP Server的端口号）； client在收到UDP Server的端口号后, 为用户显示3个选项： 1．“Get current time（TCP）”服务器时间 2．“Echo Mode（UDP）”回显6 3．“Exit the program”. -Client program also creates a TCP socket, respectively, and a UDP socket, the first client to use TCP socket connection TCP Server. After a successful connection displays a prompt message and then client-side to the TCP Server sends " GET UDP PORT" string, Server receipt back to the client to send their UDP Server port number (ie, Client-side only to know the TCP Server" s UDP port number do not know Server" s port number) client received UDP Server port number, in order to the user three options: 1. " Get current time (TCP)" server time 2. " Echo Mode (UDP)" echo 63. " Exit the program" .

网络电视,可以及时聊天,传载图片,还可以即使视频.使用简单.-Network TV, you can chat a timely manner, mass upload pictures, you can even video. Using simple.

该邮件服务器提供SMTP,POP3和Finger服务，多域名支持，帐户别名，多域别名支持，SMTP用户发信认证，RBL/RSS/ORBS/DUL和基于IP地址与邮件地址的垃圾邮件过滤功能-the mail server SMTP, POP3 and Finger services, domain name, alias accounts, multi-domain alias support, SMTP user authentication letter, RBL/RSS/ORBS/DUL and based on the IP address and e-mail address of the spam filtering

ARQ协议实验的实现，模拟发送方和接收方，将文件1中的数据发送到文件3，其中文件2保存中间内容-ARQ protocol implementation experiment to simulate the sender and receiver, a data file sent to the paper 3, in which the middle of the contents of the file to save two

支持库批量下载工具（易语言）-Support the Treasury bulk download tool (easy language)