www.gusucode.com > VC Socket编程实例(服务器端+客户端)-源码程序 > VC Socket编程实例(服务器端+客户端)/Socket编程/UDP/UDPClient/UDPClient.cpp
// UDPClient.cpp : Defines the entry point for the console application. // // TCPClient.cpp : Defines the entry point for the console application. // /****************************************************************************** **File: SOCKSrv.cpp **Created: July 30th 2009 **Author: FreeKing **Description: 关于socket编程基于UDP协议的客户端 *******************************************************************************/ #include "stdafx.h" #include <Winsock2.h> #include <stdio.h> int main(int argc, char* argv[]) { //加载套接字库 WORD wVersionRequested;//WinSock库的版本号 WSADATA wsaData; int err; wVersionRequested = MAKEWORD( 1, 1); err = WSAStartup(wVersionRequested, &wsaData); if( err != 0) { return -1 ; } if( LOBYTE( wsaData.wVersion) != 1 || HIBYTE( wsaData.wVersion) !=1 ) { WSACleanup(); return -2; } //创建套接字 SOCKET sockClient = socket( AF_INET,SOCK_DGRAM, 0 ); SOCKADDR_IN addrSrv; addrSrv.sin_addr.S_un.S_addr = inet_addr("127.0.0.1"); addrSrv.sin_family = AF_INET; addrSrv.sin_port = htons(6000); //发送数据 sendto(sockClient, "This is Dong Liu'world", strlen( "This is Dong Liu'world" )+1, 0 ,(SOCKADDR*)&addrSrv, sizeof(SOCKADDR)); //关闭套接字 closesocket(sockClient); WSACleanup(); return 0; }