请问高手：为什么我用FTP会话连接时总出现Debug Assertion Failed!

[prettywlazly]

主要代码如下：

  m_pInetSession=new CInternetSession(AfxGetAppName(),1,PRE_CONFIG_INTERNET_ACCESS);
   m_pFtpConnection=m_pInetSession->GetFtpConnection("127.0.0.1","myway","123",21); 

用FTP会话连接运行时总出现Debug Assertion Failed！
File：inet.cpp
Line：2347
请问是怎么个问题？
谢谢，回答的都有加分！

[oyljerry]

触发了异常，你单步调试一下代码

[Eleven]

Debug下调试一下看看各个指针值是否有效呢？
MSDN上给了一段FTP的示例代码，不妨参考一下：

// create a session object to initialize WININET library
// Default parameters mean the access method in the registry
// (that is, set by the "Internet" icon in the Control Panel)
// will be used.

CInternetSession sess(_T("My FTP Session"));

CFtpConnection* pConnect = NULL;

try
{
   // Request a connection to ftp.microsoft.com. Default
   // parameters mean that we'll try with username = ANONYMOUS
   // and password set to the machine name @ domain name
   pConnect = sess.GetFtpConnection(_T("ftp.microsoft.com"));

   // use a file find object to enumerate files
   CFtpFileFind finder(pConnect);

   // start looping
   BOOL bWorking = finder.FindFile(_T("*"));

   while (bWorking)
   {
      bWorking = finder.FindNextFile();
      _tprintf_s(_T("%s\n"), (LPCTSTR)finder.GetFileURL());
   }
}
catch (CInternetException* pEx)
{
   TCHAR sz[1024];
   pEx->GetErrorMessage(sz, 1024);
   _tprintf_s(_T("ERROR!  %s\n"), sz);
   pEx->Delete();
}

// if the connection is open, close it
if (pConnect != NULL) 
{
   pConnect->Close();
   delete pConnect;
}