文件同步下载程序示例

TCP的客户服务器通信程序 一：程序运行过程 1、运行服务器程序，等待客户端发出请求 2、运行客户端程序，输入客户的IP地址，请求连接 3、若连接成功，服务器端显示客户的IP地址及端口号；客户端接收文件并保存在d:clientls.txt下，否则，显示错误信息。 二：程序实现原理 发送端：打开文件，逐一读取字符到缓冲区（缓冲区大小为1024），若文件大于1024，则成块发送；若小于，则直接发送。 接受端：与发送端同理。-TCP client-server communication program one : running a process, running the server and wait for the client to issue two requests, the client operating procedures, the importation of customer IP address, link request, if successful connection, the server-client shows the IP address and port number ; the client receives the document and preserve d : client ls.txt, otherwise an error message. 2 : Principle procedures transmitter : open the file, read each character to the buffer (buffer size for 1024), and if the document is greater than 1,024, then sent into pieces; If less, then sent directly. Receivers : Send-the same reason.

采用CSOCKET得到服务器的时间，利用TCP/IP的13端口提供的时间服务，要求提供时间服务的计算机安装简单TCP/IP协议。-CSOCKET used to be a time server using TCP/IP 13 ports for the service, asked for time to install the computer services simple TCP/IP protocol.

DNS 解析用的库源码，还包含windows下nslookup的源码-DNS analysis for the source, the windows also includes the source code under nslookup

局域网的一个信息交换平台,可用于网间交换信息-a LAN information exchange platform for the exchange of information between network

利用套接字实现用TCP协议的数据通信并进行了测试通过-The use of sockets to achieve data communication with the TCP protocol and tested through

网络通信的基本过程，采用阻塞的形式，代码简洁-The basic process of network communication using the form of blocking, code concise

windows Chat； 简单的聊天代码，适合初学参考。-windows; Simple Chat code, suitable for beginners reference.

这是我在计算机网络课程设计中的程序，用vc开发用于文件传输-This is my courses in computer network design process, vc used for the development of file transfer

一个写好的串口通信程序，窗口程序可以直接调用-A written serial communication program, the window procedure can directly call

很不错的书要有一定编程基础的才能看懂不适合菜菜的-very good to have a certain book based programming can understand not suitable for the planting