不用vs，c 语言windows下编写socket，用gcc编译

• windows下socket一般都要vs，因为socket运行库可能在win-sdk里
  反正在system32里我没找到ws2.32.lib,因此需要下载一份这个，如果能在其他地方找到也可以，点击这里可以WS2.32下载我上传到云盘里的文件，密码：10nc。

• 首先写两份代码，client.cpp, server.cpp

  代码出自–可乐爱上了雪碧

  client.cpp

#include <iostream>#include <winsock2.h>using namespace std;#pragma comment(lib, "ws2_32.lib")#define PORT 4000#define IP_ADDRESS "127.0.0.1"int main(int argc, char * argv[]){    WSADATA Ws;    SOCKET ClientSocket;    struct sockaddr_in ServerAddr;    int Ret = 0;    int AddrLen = 0;    HANDLE hThread = NULL;    char SendBuffer[MAX_PATH];    //Init Windows Socket    if ( WSAStartup(MAKEWORD(2,2), &Ws) != 0 )    {        cout<<"Init Windows Socket Failed::"<<GetLastError()<<endl;        return -1;    }    //Create Socket    ClientSocket = socket(AF_INET, SOCK_STREAM, IPPROTO_TCP);    if ( ClientSocket == INVALID_SOCKET )    {        cout<<"Create Socket Failed::"<<GetLastError()<<endl;        return -1;    }    ServerAddr.sin_family = AF_INET;    ServerAddr.sin_addr.s_addr = inet_addr(IP_ADDRESS);    ServerAddr.sin_port = htons(PORT);    memset(ServerAddr.sin_zero, 0x00, 8);    Ret = connect(ClientSocket,(struct sockaddr*)&ServerAddr, sizeof(ServerAddr));    if ( Ret == SOCKET_ERROR )    {        cout<<"Connect Error::"<<GetLastError()<<endl;        return -1;    }    else    {        cout<<"连接成功!"<<endl;    }    while ( true )    {        cin.getline(SendBuffer, sizeof(SendBuffer));        Ret = send(ClientSocket, SendBuffer, (int)strlen(SendBuffer), 0);        if ( Ret == SOCKET_ERROR )        {            cout<<"Send Info Error::"<<GetLastError()<<endl;            break;        }    }    closesocket(ClientSocket);    WSACleanup();    return 0;}

server.cpp

//Server.cpp#include <iostream>#include <winsock2.h>using namespace std;#pragma comment(lib, "ws2_32.lib")#define PORT 4000#define IP_ADDRESS "127.0.0.1"DWORD WINAPI ClientThread(LPVOID lpParameter){    SOCKET CientSocket = (SOCKET)lpParameter;    int Ret = 0;    char RecvBuffer[1024];    while ( true )    {        memset(RecvBuffer, 0x00, sizeof(RecvBuffer));        Ret = recv(CientSocket, RecvBuffer, 1024, 0);        if ( Ret == 0 || Ret == SOCKET_ERROR )        {            cout<<"客户端退出!"<<endl;            break;        }        cout<<"接收到客户信息为:"<<RecvBuffer<<endl;    }    return 0;}int main(int argc, char* argv[]){    WSADATA  Ws;    SOCKET ServerSocket, ClientSocket;    struct sockaddr_in LocalAddr, ClientAddr;    int Ret = 0;    int AddrLen = 0;    HANDLE hThread = NULL;    //Init Windows Socket    if ( WSAStartup(MAKEWORD(2,2), &Ws) != 0 )    {        cout<<"Init Windows Socket Failed::"<<GetLastError()<<endl;        return -1;    }    //Create Socket    ServerSocket = socket(AF_INET, SOCK_STREAM, IPPROTO_TCP);    if ( ServerSocket == INVALID_SOCKET )    {        cout<<"Create Socket Failed::"<<GetLastError()<<endl;        return -1;    }    LocalAddr.sin_family = AF_INET;    LocalAddr.sin_addr.s_addr = inet_addr(IP_ADDRESS);    LocalAddr.sin_port = htons(PORT);    memset(LocalAddr.sin_zero, 0x00, 8);    //Bind Socket    Ret = bind(ServerSocket, (struct sockaddr*)&LocalAddr, sizeof(LocalAddr));    if ( Ret != 0 )    {        cout<<"Bind Socket Failed::"<<GetLastError()<<endl;        return -1;    }    //listen    Ret = listen(ServerSocket, 10);    if ( Ret != 0 )    {        cout<<"listen Socket Failed::"<<GetLastError()<<endl;        return -1;    }    cout<<"服务端已经启动"<<endl;    while ( true )    {        AddrLen = sizeof(ClientAddr);        ClientSocket = accept(ServerSocket, (struct sockaddr*)&ClientAddr, &AddrLen);        if ( ClientSocket == INVALID_SOCKET )        {            cout<<"Accept Failed::"<<GetLastError()<<endl;            break;        }        cout<<"客户端连接::"<<inet_ntoa(ClientAddr.sin_addr)<<":"<<ClientAddr.sin_port<<endl;        hThread = CreateThread(NULL, 0, ClientThread, (LPVOID)ClientSocket, 0, NULL);        if ( hThread == NULL )        {            cout<<"Create Thread Failed!"<<endl;            break;        }        CloseHandle(hThread);    }    closesocket(ServerSocket);    closesocket(ClientSocket);    WSACleanup();    return 0;}

ok ，现在我们开始编译：

1. 你需要有window的gun的gcc，g++编译器，没有的话自行下载 MinGW

2. 让cmd到你当前两个文件和ws2.32所在目录：
   分别执行命令 g++ -o server server.cpp -L ./ -lWS2_32
   g++ -o client client.cpp -L ./ -lWS2_32
   -L ./ 表示路劲 -l 表示动态库的名称

                       注意路劲，不然会出错 。

   3.在当前cmd 运行server, 再打开一个cmd运行client，ok。