VC获取网页源码的三种方式_c++读取网页源码

//有三种方法
'方法一(只适用于MFC工程)：
//参数URL：网页地址
//返回CString就是网页源码
//返回的网页源码是UTF8格式,要转成ANSI等编码才能正常显示
#include <afxinet.h>
CString GetWebSource(CString URL)
{
    CInternetSession Session(NULL,0);
    CString PageData;
    CString TempData;
    CHttpFile*HttpFile=(CHttpFile*)Session.OpenURL(URL);
    while(HttpFile->ReadString(TempData))
    {
        PageData+=TempData;
    }
    HttpFile->Close();
    delete HttpFile;
    Session.Close();
    //这里返回的网页源码是UTF8格式,要转成ANSI等编码才能正常显示
    return PageData;
}
'方法二：
首先引用:
#import <msxml4.dll> named_guids
using namespace MSXML2;
CString resaa;
IXMLHTTPRequestPtr httpRes;
HRESULT hr=httpRes.CreateInstance("MSXML2.XMLHTTP");
if(!SUCCEEDED(hr))
{
  AfxMessageBox("无法创建XMLHTTP对象，请检查是否安装了MS XML运行库!");
}
LPCTSTR url="http://localhost/changjun/asxml.asp";
httpRes->open("Get",url,false,"","");
httpRes->sen