MinGW Code：：Blocks 运行 winsock

先转一段： 来自网络 网址不记得啦，不好意思

----------------------------

按照原来在VS下的经验，添加头文件

#include "windows.h"

#include "winsock2.h"

#pragma comment(lib, "ws2_32.lib")

在使用代码

if (WSAStartup(MAKEWORD(2, 2), &wsaData) != 0)
{
return 1;
}

报错，undefined reference to WSAStartup@8

查阅网络，得知原来Mingw没有默认包含Windows的库，需要在链接的地方添加-lwsock32。

-------------------------------------

再 Code::blocks 中新建一个工程， 然后右击工程

选择 build options

选择Linker setting

在 Other linker options 中添加： -lwsock32
问题解决

附代码：

//#include "stdafx.h" // 注释掉 #include "windows.h" // 新增 windows.h #include "winsock2.h" //#pragma comment(lib, "ws2_32.lib") // 注视掉 #include <iostream> using namespace std; int main(int argc, char* argv[]) { const int BUF_SIZE = 64; WSADATA wsd; //WSADATA变量 SOCKET sServer; //服务器套接字 SOCKET sClient; //客户端套接字 SOCKADDR_IN addrServ;; //服务器地址 char buf[BUF_SIZE]; //接收数据缓冲区 char sendBuf[BUF_SIZE];//返回给客户端得数据 int retVal; //返回值 //初始化套结字动态库 if (WSAStartup(MAKEWORD(2,2), &wsd) != 0) { cout << "WSAStartup failed!" << endl; return 1; } //创建套接字 sServer = socket(AF_INET, SOCK_STREAM, IPPROTO_TCP); if(INVALID_SOCKET == sServer) { cout << "socket failed!" << endl; WSACleanup();//释放套接字资源; return -1; } //服务器套接字地址 addrServ.sin_family = AF_INET; addrServ.sin_port = htons(4999); addrServ.sin_addr.s_addr = INADDR_ANY; //绑定套接字 retVal = bind(sServer, (LPSOCKADDR)&addrServ, sizeof(SOCKADDR_IN)); if(SOCKET_ERROR == retVal) { cout << "bind failed!" << endl; closesocket(sServer); //关闭套接字 WSACleanup(); //释放套接字资源; return -1; } //开始监听 retVal = listen(sServer, 1); if(SOCKET_ERROR == retVal) { cout << "listen failed!" << endl; closesocket(sServer); //关闭套接字 WSACleanup(); //释放套接字资源; return -1; } //接受客户端请求 sockaddr_in addrClient; int addrClientlen = sizeof(addrClient); sClient = accept(sServer,(sockaddr FAR*)&addrClient, &addrClientlen); if(INVALID_SOCKET == sClient) { cout << "accept failed!" << endl; closesocket(sServer); //关闭套接字 WSACleanup(); //释放套接字资源; return -1; } while(true){ //接收客户端数据 ZeroMemory(buf, BUF_SIZE); retVal = recv(sClient, buf, BUF_SIZE, 0); if (SOCKET_ERROR == retVal) { cout << "recv failed!" << endl; closesocket(sServer); //关闭套接字 closesocket(sClient); //关闭套接字 WSACleanup(); //释放套接字资源; return -1; } if(buf[0] == '0') break; cout << "客户端发送的数据: " << buf <<endl; cout << "向客户端发送数据: " ; cin >> sendBuf; send(sClient, sendBuf, strlen(sendBuf), 0); } //退出 closesocket(sServer); //关闭套接字 closesocket(sClient); //关闭套接字 WSACleanup(); //释放套接字资源; return 0; }