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上传时间: 2009-03-01
详细说明: #include #include #include #include int main() { //加载Socket动态链接库 WORD wVersionRequested; WSADATA wsaData; int err; wVersionRequested = MAKEWORD( 2, 2 ); err = WSAStartup( wVersionRequested, &wsaData ); if ( err != 0 ) { /* Tell the user that we could not find a usable */ /* WinSock DLL. */ return 1; } /* Confirm that the WinSock DLL supports 2.2.*/ /* Note that if the DLL supports versions greater */ /* than 2.2 in addition to 2.2, it will still return */ /* 2.2 in wVersion since that is the version we */ /* requested. */ if ( LOBYTE( wsaData.wVersion ) != 2 || HIBYTE( wsaData.wVersion ) != 2 ) { /* Tell the user that we could not find a usable */ /* WinSock DLL. */ WSACleanup( ); return 1; } /* The WinSock DLL is acceptable. Proceed. */ //1.创建套接字 SOCKET sockClient = socket(AF_INET, SOCK_STREAM, IPPROTO_TCP); if(INVALID_SOCKET == WSAGetLastError()) MessageBox(NULL, "Create Socket failed!", "Error", MB_OK); //2.向服务器发送连接请求 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)); //3.和服务器进行通信,接收或是发送数据 char recvBuf[100]; recv(sockClient, recvBuf, 100, 0); if(SOCKET_ERROR == WSAGetLastError()) MessageBox(NULL, "Server recieve data failed!", "Error", MB_OK); printf("%s\n", recvBuf); char sendBuf[] = "Hello Server"; send(sockClient, sendBuf, sizeof(sendBuf) + 1, 0); if(SOCKET_ERROR == WSAGetLastError()) MessageBox(NULL, "Server send data failed!", "Error", MB_OK); //4.关闭套接字的资源,以及卸载套接字动态链接库 closesocket(sockClient); WSACleanup(); return 0; ...展开收缩
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