c++获取本地ip

#include<WinSock2.h>
#include<iostream>
#pragma comment(lib,"WS2_32")
using namespace std;


void IP()
{
BYTE minorVer=2;
BYTE majorVer=2;
WSADATA wsaData;
    WORD sockVersion=MAKEWORD(minorVer,majorVer);
WSAStartup(sockVersion,&wsaData);
    int i;
    char szHost[256];
    gethostname(szHost,256);
    hostent *pHost=gethostbyname(szHost);
    in_addr addr;
   
    char *p=pHost->h_addr_list[0];
    memcpy(&addr.S_un.S_addr,p,pHost->h_length);
    char *szIp=inet_ntoa(addr);
    cout<<szIp<<endl;
}


void main()
{
    IP();
}