c++实现简单的客户端和服务端

server.cpp

#include<WinScok.h>
#include<windows.h>
#include<stdio.h>
int main()
{
    WORD ver = MAKEWORD(2,2);
    WSDATA dat;
    WSAStartup(ver. &dat);

    SOCKET _sock = socket (AF_INET.SOCK_STREAM,IPPROTO_TPC);
    sockaddr_in _sin = {};
    _sin.sin_family = AF_INET;
    _sin,sin_port = htons(4567);
    _sin.sin_addr.S_un.S_addr = inet_addr(:12.0.0.1");
    if(bind(_sock,(sockaddr*) &_sin,sizeof(_sin)) == SOCKET_ERROR)
    {
        printf"绑定用于接受客户端的连接端口失败");

    }
    else{
        printf("绑定端口成功\n");
    }
    if(listen(_sock,5) == SOCKET_ERROR)
    {
        printf("监听端口失败..\n");
    }
    sockaddr_in clientAddr= {};
    int nAddrLen = sizeof(sockaddr_in);
    SOCKET_cSOCK = INVALID_SOCKET;

    _cSOCK = accept(_sock,(sockaddr*)&clientAddr,&nAddrLen);
    if(_cSock == INVALID_SOCKET)
    {
        printf("错误，接收到无效的哭护短SOXKET..\n");
    }
    printf("新客户端加入：socket = %d ,IP = %s \n",_cSock,inet_ntoa(clientAddr.sin_addr));

    char _recvBuf[128] = {};
    while(true)
    {
        int nLen = recv(_cSOCK,_recvBuf,128,0);
        if(nLen <= 0)
        {
            printf("客户端已退出，任务结束");
            break;
        }
        printf("收到命令：%s \n",_recvBuf);
        if(strcmp(_recvBuf,"getName") == 0)
        {
            char amgBuf[] = "klose";
            send(_cSOCK,magBuf,strlen(msgBuf)+1,0);

        }
        else
        {
            char msgBuf[] = "???";
            send(_cSock,msgBuf,strlen(msgBuf)+1,0);

        }
        closesocket(_sock)l

        WSACleanup();
        getchar();
        return 0;     

    }

}

client.cpp

#include<WinSock2.h>
#include<windows.h>
#include<stdio.h>

int main()
{
    WORD ver = MAKEWORD(2,2);
    WSADATA dat;
    WSAStartup(ver,&dat);

    SOCKET _sock = socket(AF_INET,SOCK_STREAM,0)
    if(_socl == INVALID_SOCKET)
    {
        printf("错误，建立Socket失败...\n");

    }
    else
    {
        printf("建立Socket成功...\n");
    }
    socketaddr_in _sin = {};
    _sin.sin_family = AF_INET;
    _sin.sin_port = htons(4567);
 	_sin.sin_addr.S_un.S_addr = inet_addr("127.0.0.1");

 	int ret = connest(_sock,(sockaddr *)&_sin,sizeof(socketaddr));
 	{
        printf("错误，连接服务器失败...\n")l

 	}
 	else
 	{
        printf("连接服务器成功...\n");

 	}
    char cmdBuf[128] = {};
    while(true)
    {
        scanf("%s",cmdBuf)'
        if (strcmp(cmdBuf,"exit) == 0)
        {
            break;
        }
        else
        {
            send(_sock,cmdBuf,strlen(cmdBuf)+1 ,0);
        }

        char recvBuf[256] = {};
        int nlen = recv (_sock,recvBuf,156,0);
        if(nlen > 0)
        {
            printf("接受数据:%s \n",recvBuf)'
        }
    }
    closesocket(_sock);
    WSACleanup();
    getchar();
    return 0;

}