获取ip源程序

用c++如何获取本机ip？ 其实这是一个很简单的程序，不多说，看代码 //------主程序--------------------------------------------------------------------- #include <vcl.h> #pragma hdrstop #include "WINSOCK2.H" #include "Unit1.h" //--------------------------------------------------------------------------- #pragma package(smart_init) #pragma resource "*.dfm" TForm1 *Form1; //--------------------------------------------------------------------------- __fastcall TForm1::TForm1(TComponent* Owner) : TForm(Owner) { } //--------------------------------------------------------------------------- void __fastcall TForm1::FormCreate(TObject *Sender) { struct hostent *thisHost; struct in_addr in; char MyName[80]; char *hostname,*ptr; //检测windows api 版本号 WORD wVerdionRequested; wVerdionRequested=MAKEWORD(2,0); WSADATA wsaData; int err; err=WSAStartup(wVerdionRequested,&wsaData;); if(err!=0) return; //对winsock api 初始化 if(LOBYTE(wsaData.wVersion)!=2||HIBYTE(wsaData.wVersion)!=0) { WSACleanup(); return; } //获取本机标准域名 if(gethostname(MyName,80)==SOCKET_ERROR) return; thisHost=gethostbyname(MyName); if(!thisHost) return; hostname=thisHost->h_name; //获取本机ip地址 memset((void *)&in;,sizeof(in),0); in.s_addr=*((unsigned long *)thisHost->h_addr_list[0]); ptr=inet_ntoa(in); if(!ptr) return; //释放资源，输出结果 WSACleanup(); Edit1->Text=String(ptr); Edit2->Text=String(hostname); } //--------------------------------------------------------------------------- （全国大学生联盟 http://www.chinastlm.com 转载请保留此行） 请查看附件获取全部代码 获取本机ip.zip