vc socket tcp编程的简单实例

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//Server端#include   <Winsock2.h>#include   <stdio.h>void   main(){WORD   wVersionRequested;WSADATA   wsaData;int   err;wVersionRequested   =   MAKEWORD(   1,   1   );err   =   WSAStartup(   wVersionRequested,   &wsaData   );if   (   err   !=   0   )   {return;}if   (   LOBYTE(   wsaData.wVersion   )   !=   1   ||                HIBYTE(   wsaData.wVersion   )   !=   1   )   {WSACleanup(   );return;  }SOCKET   sockSrv=socket(AF_INET,SOCK_STREAM,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));listen(sockSrv,5);SOCKADDR_IN   addrClient;int   len=sizeof(SOCKADDR);while(1){SOCKET   sockConn=accept(sockSrv,(SOCKADDR*)&addrClient,&len);char   sendBuf[100];sprintf(sendBuf, "Welcome   %s   to   http://www.sunxin.org ",inet_ntoa(addrClient.sin_addr));send(sockConn,sendBuf,strlen(sendBuf)+1,0);char   recvBuf[100];recv(sockConn,recvBuf,100,0);printf( "%s ",recvBuf);closesocket(sockConn);}}//Client端#include   <Winsock2.h>#include   <stdio.h>void   main(){WORD   wVersionRequested;WSADATA   wsaData;int   err;wVersionRequested   =   MAKEWORD(   1,   1   );err   =   WSAStartup(   wVersionRequested,   &wsaData   );if   (   err   !=   0   )   {return;}if   (   LOBYTE(   wsaData.wVersion   )   !=   1   ||                HIBYTE(   wsaData.wVersion   )   !=   1   )   {WSACleanup(   );return;  }SOCKET   sockClient=socket(AF_INET,SOCK_STREAM,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);connect(sockClient,(SOCKADDR*)&addrSrv,sizeof(SOCKADDR));char   recvBuf[100];recv(sockClient,recvBuf,100,0);printf( "%s ",recvBuf);send(sockClient, "This   is   lisi ",strlen( "This   is   lisi ")+1,0);closesocket(sockClient);WSACleanup();}

http://blog.const.net.cn/a/11552.htm

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