我是在Visual Stdio 2013上建立了两个工程，分别编译运行下面的两个main文件，然后进行测试的
服务端：Server.cpp::cout;using std::cin;using std::endl;::string;#pragma comment(lib,”ws2_32.lib”)void main(){//创建套接字WORD myVersionRequest;WSADATA wsaData;//包含系统所支持的WinStock版本信息myVersionRequest = MAKEWORD(1, 1); //初始化版本1.1int err;err = WSAStartup(myVersionRequest, &wsaData);if (!err){printf(“已打开套接字\n”);}else{//进一步绑定套接字printf(“套接字未打开!”);return;}SOCKET serSocket = socket(AF_INET, SOCK_STREAM, 0);//创建了可识别套接字//需要绑定的参数SOCKADDR_IN addr;addr.sin_family = AF_INET;addr.sin_addr.S_un.S_addr = htonl(INADDR_ANY);//ip地址addr.sin_port = htons(3000);//绑定端口//将套接字绑定到指定的网络地址bind(serSocket, (SOCKADDR*)&addr, sizeof(SOCKADDR));//绑定完成listen(serSocket, 10);//第二个参数代表能够接收的最多的连接数SOCKADDR_IN clientsocket;int len = sizeof(SOCKADDR);SOCKET serConn;//等待客户端的连接serConn = accept(serSocket, (SOCKADDR*)&clientsocket, &len);cout << “客户端” << inet_ntoa(clientsocket.sin_addr) << “已连接” << endl;//客户端已连接while (1) {char sendBuf[100];sprintf(sendBuf, “server : welcome %s to server.”, inet_ntoa(clientsocket.sin_addr));//在对应的IP处并且将这行字打印到那里send(serConn, sendBuf, strlen(sendBuf) + 1, 0);char receiveBuf[100];//接收客户端传来的信息recv(serConn, receiveBuf, strlen(receiveBuf) + 1, 0);char* quit = “quit”;//如果客户端传来了quit信号，则服务端关闭，客户端也关闭if (!strcmp(receiveBuf, quit)) {break;}printf(“%s\n”, receiveBuf);}closesocket(serConn); //关闭WSACleanup();//释放资源的操作}客户端：Client.cpp::cout;using std::cin;using std::endl;::string;main(){int err;WORD versionRequired;WSADATA wsaData;//包含系统所支持的WinStock版本信息versionRequired = MAKEWORD(1, 1);//初始化版本1.1//注册WinStock，返回状态err = WSAStartup(versionRequired, &wsaData);//协议库的版本信息if (!err)//返回结果为0表示初始化失败{cout << LPSTR(“客户端套接字已经打开!\n”);}else{//调用WSAGetLastError()查看错误信息cout << (“客户端套接字打开失败：”) << WSAGetLastError() << endl;return;//结束}/*创建套接字：流式套接字： SOCK_STREAM , IPPROTO_TCP数据报套接字: SOCK_DGRAM , IPPROTO_UDP*/SOCKET clientSocket = socket(AF_INET, SOCK_STREAM, IPPROTO_TCP); //创建流式套接字SOCKADDR_IN clientsock_in;//专门针对Internet 通信域的Winsock地址结构clientsock_in.sin_addr.S_un.S_addr = inet_addr(“127.0.0.1”);//通过inet_addr结构指定套接字的主机IP地址 clientsock_in.sin_family = AF_INET;//指定协议家族:AF_INETclientsock_in.sin_port = htons((fail){cout << “与服务端连接失败！程序将退出…” << endl;_getch();return;}string s;while (cin >> s){char receiveBuf[100];//接收数据recv(clientSocket, receiveBuf, 101, 0);cout << receiveBuf <<endl;//发送数据send(clientSocket, s.c_str(), s.length() + 1, 0);if (s == “quit”){break;}}closesocket(clientSocket);//关闭套接字if (WSACleanup() == SOCKET_ERROR){cout << “套接字关闭失败：” << WSAGetLastError() << endl;}else{cout << “套接字成功关闭.” << endl;}_getch();return;}//inet_addr结构：/*Struct in_addr {Union{Struct{ u_char s_b1, s_b2, s_b3, s_b4; } S_un_b;Struct{ u_short s_w1, s_w2; } S_un_w;U_long S_addr;}}*/测试黑夜下，撕开那张面具尽是怠倦的容颜，
