先使用InternetOpen初始化WinINet函数,然后在使用InternetOpenUrl打开指定链接,最后就用InternetReadFile就能读取到网页源代码.

下面的代码能够打开并且将网页源代码打印出来.

#include 
     
       #include 
      
        #include 
       
         #pragma comment(lib,"Wininet.lib") #include 
        
          using namespace std; int main(int argc, char* argv[]) {
       vector
         
           v;     CHAR szUrl[] = "http://www.baidu.com/";     CHAR szAgent[] = "";     HINTERNET hInternet1 =         InternetOpen(NULL,INTERNET_OPEN_TYPE_PRECONFIG,NULL,NULL,NULL); if (NULL == hInternet1)      {
           InternetCloseHandle(hInternet1); return FALSE;      }     HINTERNET hInternet2 =         InternetOpenUrl(hInternet1,szUrl,NULL,NULL,INTERNET_FLAG_NO_CACHE_WRITE,NULL); if (NULL == hInternet2)      {
           InternetCloseHandle(hInternet2);         InternetCloseHandle(hInternet1); return FALSE;      }     DWORD dwMaxDataLength = 500;     PBYTE pBuf = (PBYTE)malloc(dwMaxDataLength*sizeof(TCHAR)); if (NULL == pBuf)      {
           InternetCloseHandle(hInternet2);         InternetCloseHandle(hInternet1); return FALSE;      }     DWORD dwReadDataLength = NULL;     BOOL bRet = TRUE; do     {
           ZeroMemory(pBuf,dwMaxDataLength*sizeof(TCHAR));         bRet = InternetReadFile(hInternet2,pBuf,dwMaxDataLength,&dwReadDataLength); for (DWORD dw = 0;dw < dwReadDataLength;dw++)          {
               v.push_back(pBuf[dw]);          }      } while (NULL != dwReadDataLength);     vector
          
           ::iterator i; for(i=v.begin(); i!=v.end(); i++) printf("%c",*i); return 0; }