VC++之网络编程五 聊天编程实例

 server:

//NetSrv.cpp

#include <Winsock2.h> #include <stdio.h> void main(){ //mide delete word WORD wVersionRequested; WSADATA wsaData; int err; wVersionRequested=MAKEWORD(2,2); err=WSAStartup(wVersionRequested,&wsaData); if(err!=0){ return; } if(LOBYTE(wsaData.wVersion)!=2 || HIBYTE(wsaData.wHighVersion)!=2) { WSACleanup(); return ; } SOCKET sockSrv=socket(AF_INET,SOCK_DGRAM,0); SOCKADDR_IN addrSrv; addrSrv.sin_addr.S_un.S_addr=htonl(INADDR_ANY); addrSrv.sin_family=AF_INET; addrSrv.sin_port=htons(6000); bind(sockSrv,(SOCKADDR*)&addrSrv,sizeof(SOCKADDR)); char recvBuf[100]; char sendBuf[100]; char tempBuf[100]; SOCKADDR_IN addrClient; int len=sizeof(SOCKADDR); while(1) { recvfrom(sockSrv,recvBuf,100,0,(SOCKADDR*)&addrClient,&len); if('q'==recvBuf[0]) { sendto(sockSrv,"q",strlen("q")+1,0,(SOCKADDR*)&addrClient,len); printf("chat end!/n"); break; } sprintf(tempBuf,"%s say: %s",inet_ntoa(addrClient.sin_addr),recvBuf); printf("%s/n",tempBuf); printf("Please input data:/n"); gets(sendBuf); sendto(sockSrv,sendBuf,strlen(sendBuf)+1,0,(SOCKADDR*)&addrClient,len); } closesocket(sockSrv); WSACleanup(); } 

client:

//NetClient.cpp

#include <Winsock2.h> #include <stdio.h> void main(){ //mide delete word WORD wVersionRequested; WSADATA wsaData; int err; wVersionRequested=MAKEWORD(2,2); err=WSAStartup(wVersionRequested,&wsaData); if(err!=0){ return; } if(LOBYTE(wsaData.wVersion)!=2 || HIBYTE(wsaData.wHighVersion)!=2) { WSACleanup(); return ; } 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); char recvBuf[100]; char sendBuf[100]; char tempBuf[100]; int len=sizeof(SOCKADDR); while(1) { printf("Please input data:/n"); gets(sendBuf); sendto(sockClient,sendBuf,strlen(sendBuf)+1,0,(SOCKADDR*)&addrSrv,len); recvfrom(sockClient,recvBuf,100,0,(SOCKADDR*)&addrSrv,&len); if('q'==recvBuf[0]) { sendto(sockClient,"q",strlen("q")+1,0,(SOCKADDR*)&addrSrv,len); printf("chat end!/n"); break; } sprintf(tempBuf,"%s say: %s",inet_ntoa(addrSrv.sin_addr),recvBuf); printf("%s/n",tempBuf); } closesocket(sockClient); WSACleanup(); } 

注意：

server 和 client 都要"项目属性"--->"配置属性"----> "链接"----> "输入" --->"附加依赖项"中添加"ws2_32.lib"