#include "stdafx.h"        #include <Winsock2.h>        #include <stdio.h>        #include <iostream>        #include "SocketService.h"        #pragma comment(lib, "WS2_32")        using std::string;        namespace SocketService        {         //监听端：         void WINAPI StartToListen(void (*p)())        {        WORD wVersionRequested;        WSADATA wsaData;        int err;        wVersionRequested = MAKEWORD(1,1);        err = WSAStartup(wVersionRequested, &wsaData);        if ( err != 0 )         {          return;         }         if (LOBYTE(wsaData.wVersion) != 1 || HIBYTE(wsaData.wVersion) != 1 )          {          WSACleanup();          return;         }         SOCKET sockSrv=socket(AF_INET,SOCK_STREAM,0);         SOCKADDR_IN addrSrv;         addrSrv.sin_addr.S_un.S_addr=htonl(INADDR_ANY);         addrSrv.sin_family=AF_INET;         addrSrv.sin_port=htons(8000);                  bind(sockSrv,(SOCKADDR*)&addrSrv,sizeof(SOCKADDR));         listen(sockSrv,5);         SOCKADDR_IN addrClient;         int len=sizeof(SOCKADDR);         while(1)         {          SOCKET sockConn=accept(sockSrv,(SOCKADDR*)&addrClient,&len);          p();          char sendBuf[50];          send(sockConn,sendBuf,strlen(sendBuf)+1,0);          char recvBuf[50];          recv(sockConn,recvBuf,50,0);          p();          closesocket(sockConn);         }        }        //发送端        void WINAPI Send(char* ipAddress,char* message)        {        WORD wVersionRequested;         WSADATA wsaData;         int err;                  wVersionRequested = MAKEWORD(1,1);                  err = WSAStartup( wVersionRequested, &wsaData );         if ( err != 0 ) {          return;         }                  if ( LOBYTE( wsaData.wVersion ) != 1 ||                 HIBYTE( wsaData.wVersion ) != 1 ) {           WSACleanup( );          return;         }         SOCKET sockClient=socket(AF_INET,SOCK_STREAM,0);                  SOCKADDR_IN addrSrv;         addrSrv.sin_addr.S_un.S_addr=inet_addr(ipAddress);         addrSrv.sin_family=AF_INET;         addrSrv.sin_port=htons(8000);         connect(sockClient,(SOCKADDR*)&addrSrv,sizeof(SOCKADDR));         send(sockClient,message,strlen(message)+1,0);                  closesocket(sockClient);         WSACleanup();        }        }