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#include 
   
    #include 
    
     #include 
     
      #include 
      
       #include 
       
        #pragma comment(lib,"wininet.lib") using namespace std;CString content;bool getData(LPCTSTR proxy){	CString data;	DWORD dwStatusCode;	CInternetSession session("HttpClient");	CHttpFile *pfile = NULL;  	INTERNET_PROXY_INFO proxyinfo;	proxyinfo.dwAccessType = INTERNET_OPEN_TYPE_PROXY;	proxyinfo.lpszProxy = proxy;	proxyinfo.lpszProxyBypass = NULL;	session.SetOption(INTERNET_OPTION_PROXY,(LPVOID)&proxyinfo,sizeof(INTERNET_PROXY_INFO));	session.SetOption(INTERNET_OPTION_CONNECT_TIMEOUT, 2000);			// 2秒的连接超时	session.SetOption(INTERNET_OPTION_SEND_TIMEOUT, 1000);				// 1秒的发送超时	session.SetOption(INTERNET_OPTION_RECEIVE_TIMEOUT, 7000);			// 7秒的接收超时	session.SetOption(INTERNET_OPTION_DATA_SEND_TIMEOUT, 1000);			// 1秒的发送超时	session.SetOption(INTERNET_OPTION_DATA_RECEIVE_TIMEOUT, 7000);      // 7秒的接收超时	session.SetOption(INTERNET_OPTION_CONNECT_RETRIES, 1);				// 1次重试	try	{		pfile = (CHttpFile*)session.OpenURL("http://ip.dnsexit.com/", 1, INTERNET_FLAG_TRANSFER_ASCII|INTERNET_FLAG_RELOAD|INTERNET_FLAG_DONT_CACHE);	}	catch (CInternetException *e)	{		pfile = NULL;		e->Delete();		session.Close();		return false;	}	pfile->QueryInfoStatusCode(dwStatusCode);	if(dwStatusCode == HTTP_STATUS_OK)  	{   		while (pfile->ReadString(data))  		{  			content += data;  		}		pfile->Close();		session.Close();		return true;	}	else	{		return false;	}}int main(){	string line;	fstream fin("proxy.txt");	while (getline(fin, line))	{		content.Empty();		if (getData(line.c_str()))		{			cout << content << "is OK!" << endl;		}	}	fin.close();	return 0;}
       
      
     
    
   

我们可以利用代理IP来刷访问量等等。