#include <WinSock2.h>#pragma comment(lib,"ws2_32")//鏈接到ws2_32動態(tài)鏈接庫class CInitSock{public:  CInitSock(BYTE minorVer = 2,BYTE majorVer = 2)  {    WSADATA wsaData;    WORD VersionRequset;    VersionRequset = MAKEWORD(minorVer,majorVer);    //裝載winsock庫    if (WSAStartup(VersionRequset,&wsaData)!=0)    {      //裝載winsock庫失敗，推出      exit(0);    }  }  ~CInitSock()  {    WSACleanup();  }};

#include <iostream>#include "a.h"using namespace std;CInitSock Initsock;bool GetIp();int main(){  GetIp();  return 0;}bool GetIp(){  char szText[256];  //獲取本機(jī)主機(jī)名稱  int iRet;  iRet = gethostname(szText,256);  int a = WSAGetLastError();  if (iRet!=0)  {    printf("gethostname() Failed!");    return FALSE;  }  //通過主機(jī)名獲取到地址信息  HOSTENT *host = gethostbyname(szText);  if (NULL==host)  {    printf("gethostbyname() Failed!");    return false;  }  in_addr PcAddr;  for (int i=0;;i++)  {    char *p = host->h_addr_list[i];    if (NULL==p)    {      break;    }    memcpy(&(PcAddr.S_un.S_addr),p,host->h_length);    char*szIP = ::inet_ntoa(PcAddr);    printf("本機(jī)的ip地址是：%s/n",szIP);  }  system("pause");}