获取本机地址信息，遇到小问题...有待解决

程序代码：

#include "../common/InitSock.h"
#include <stdio.h>
CInitSock initSock;
void main()
{
    char szHost[256];
    ::gethostname(szHost,256);
    hostent *pHost = ::gethostbyname(szHost);
    in_addr addr;
    for(int i =0;;i++)
    {
        char *p = pHost->h_addr_list[i];
        if(p == NULL)
            break;
        memcpy(&addr.S_un.S_addr, p, pHost->h_length);
        char *szIp = ::inet_ntoa(addr);
        printf("本地IP地址：%s \n",szIp);
    }
}

第一次编译说 找不到 ../common/InitSock.h

然后百度说，自己弄个头文件就行：

#include  <winsock2.h> 
#pragma comment(lib, "WS2_32 ")
#pragma comment(lib, "ws2.lib ")    //   链接到WS2_32.lib 
class   CInitSock    
{ 
    public: 
    CInitSock(BYTE   minorVer   =   2,   BYTE   majorVer   =   2) 
    { 
        //   初始化WS2_32.dll 
        WSADATA   wsaData; 
        WORD   sockVersion   =   MAKEWORD(minorVer,   majorVer); 
        if(::WSAStartup(sockVersion,   &wsaData)   !=   0) 
        { 
            exit(0); 
        } 
    } 

    ~CInitSock() 
    {    
        ::WSACleanup();    
    } 
}; 

然后保存成：initsock.h 但这个方法不好使：

然后继续编译，说是缺少win32.lib...很是奇怪