CString类的Left函数在调用GetCurrentDirectory后无效

[ELinux2607]

CString DirectoryTemp;
GetCurrentDirectory(1024, (LPSTR)(LPCSTR)DirectoryTemp);
AfxMessageBox(DirectoryTemp.Left(3));

当前工程工作路径为C:\Users\Administrator\Desktop\Directory
调用AfxMessageBox(DirectoryTemp.Left(3));显示的不是左边的三个字符串（"C:\"），
而是C:\Users\Administrator\Desktop\Directory，怎么回事？

[shenyi0106]

我觉得你没弄清楚CString和char[]的关系.

TCHAR szPath[MAX_PATH];
ZeroMemory(szPath, MAX_PATH);

GetCurrentDirectory(MAX_PATH,  szPath);

CString strTempDir = szPath;
AfxMessageBox(strTempDir.Left(3));

[Eleven]

GetCurrentDirectory(1024, (LPSTR)(LPCSTR)DirectoryTemp); 这样写错了~

[encoderlee]

	CString DirectoryTemp;
	GetCurrentDirectory(1024, DirectoryTemp.GetBuffer(1024));
	DirectoryTemp.ReleaseBuffer();
	AfxMessageBox(DirectoryTemp.Left(3));

[oyljerry]

GetCurrentDirectory需要把数据存入一个数组

WCHAR szBuffer[MAX_PATH];
GetCurrentDirectory(MAX_PATH, szBuffer);