blocks|key|1531631|text|你不能用CFileDialog做到这一点。|type|unstyled|depth|inlineStyleRanges|offset|length|style|CODE|entityRanges|data|1531632|要么使用SHBrowseForFolder+Function，要么使用包装器。|1531633|像CFolderDialog+-+Selecting+Folders.一样|1531634|entityMap|0|LINK|mutability|MUTABLE|url|http://msdn.microsoft.com/en-us/library/bb762115(VS.85).aspx|1|https://www.codeproject.com/Articles/2024/CFolderDialog-Selecting-Folders^0|4|B|0|4|Q|0|0|1|Y|1|0^^$0|@$1|2|3|4|5|6|7|T|8|@$9|U|A|V|B|C]]|D|@]|E|$]]|$1|F|3|G|5|6|7|W|8|@]|D|@$9|X|A|Y|1|Z]]|E|$]]|$1|H|3|I|5|6|7|10|8|@]|D|@$9|11|A|12|1|13]]|E|$]]|$1|J|3|-4|5|6|7|14|8|@]|D|@]|E|$]]]|K|$L|$5|M|N|O|E|$P|Q]]|R|$5|M|N|O|E|$P|S]]]]

You can't do it with <code>CFileDialog</code>.
 
Either you will use <a href="http://msdn.microsoft.com/en-us/library/bb762115(VS.85).aspx" rel="nofollow noreferrer">SHBrowseForFolder Function</a> or a wrapper for it, like <a href="https://www.codeproject.com/Articles/2024/CFolderDialog-Selecting-Folders" rel="nofollow noreferrer">CFolderDialog - Selecting Folders.</a>

blocks|key|4549349|text|这非常简单，真的。|type|unstyled|depth|inlineStyleRanges|entityRanges|data|4549350|使用从CFileDialog类派生的CFolderPickerDialog！|offset|length|style|CODE|4549351|entityMap|0|LINK|mutability|MUTABLE|url|https://msdn.microsoft.com/en-us/library/dd795962.aspx^0|0|3|B|I|J|I|J|0|0^^$0|@$1|2|3|4|5|6|7|P|8|@]|9|@]|A|$]]|$1|B|3|C|5|6|7|Q|8|@$D|R|E|S|F|G]|$D|T|E|U|F|G]]|9|@$D|V|E|W|1|X]]|A|$]]|$1|H|3|-4|5|6|7|Y|8|@]|9|@]|A|$]]]|I|$J|$5|K|L|M|A|$N|O]]]]

It is very simple, really. 

Use <a href="https://msdn.microsoft.com/en-us/library/dd795962.aspx" rel="noreferrer"><code>CFolderPickerDialog</code></a> which is derived from the class <code>CFileDialog</code>!

blocks|key|4549280|text|从Vista开始，建议使用带有FOS_PICKFOLDERS选项(see+msdn)的IFileDialog：|type|unstyled|depth|inlineStyleRanges|entityRanges|offset|length|data|4549281|CFileDialog+od(TRUE/*bOpenFileDialog*/,+NULL,+NULL,
++++++OFN_HIDEREADONLY+%7C+OFN_OVERWRITEPROMPT+,+NULL,+NULL,+0,
++++++TRUE/*bVistaStyle*/);
+++IFileOpenDialog+*+openDlgPtr+=+od.GetIFileOpenDialog();
+++if+(+openDlgPtr+!=+NULL+)
+++{
++++++openDlgPtr->SetOptions(FOS_PICKFOLDERS);
++++++openDlgPtr->Release();
+++}

+++od.DoModal();|code-block|syntax|javascript|4549282|entityMap|0|LINK|mutability|MUTABLE|url|http://msdn.microsoft.com/en-us/library/bb762115%2528VS.85%2529.aspx^0|X|8|0|0|0^^$0|@$1|2|3|4|5|6|7|Q|8|@]|9|@$A|R|B|S|1|T]]|C|$]]|$1|D|3|E|5|F|7|U|8|@]|9|@]|C|$G|H]]|$1|I|3|-4|5|6|7|V|8|@]|9|@]|C|$]]]|J|$K|$5|L|M|N|C|$O|P]]]]

Starting from Vista it's recommended to use IFileDialog with the FOS_PICKFOLDERS option (<a href="http://msdn.microsoft.com/en-us/library/bb762115%28VS.85%29.aspx" rel="noreferrer">see msdn</a>):

<pre><code>CFileDialog od(TRUE/*bOpenFileDialog*/, NULL, NULL,
 OFN_HIDEREADONLY | OFN_OVERWRITEPROMPT , NULL, NULL, 0,
 TRUE/*bVistaStyle*/);
 IFileOpenDialog * openDlgPtr = od.GetIFileOpenDialog();
 if ( openDlgPtr != NULL )
 {
 openDlgPtr-&gt;SetOptions(FOS_PICKFOLDERS);
 openDlgPtr-&gt;Release();
 }

 od.DoModal();
</code></pre>

blocks|key|4549367|text|就像有人提到的那样，使用CFolderPickerDialog，它工作得很好。我想给你举例说明如何使用它，特别是在使用多选标志时：|type|unstyled|depth|inlineStyleRanges|entityRanges|offset|length|data|4549368|CFolderPickerDialog+folderPickerDialog(initialFolder,+OFN_FILEMUSTEXIST+%7C+OFN_ALLOWMULTISELECT+%7C+OFN_ENABLESIZING,+this,
++++++++sizeof(OPENFILENAME));

++++CString+folderPath;

++++if+(folderPickerDialog.DoModal()+==+IDOK)
++++{

++++++++POSITION+pos+=+folderPickerDialog.GetStartPosition();

++++++++while+(pos)
++++++++{
++++++++++++folderPath+=+folderPickerDialog.GetNextPathName(pos);

++++++++}
++++}|code-block|syntax|javascript|4549369|entityMap|0|LINK|mutability|MUTABLE|url|https://msdn.microsoft.com/en-us/library/dd795962.aspx^0|C|J|0|0|0^^$0|@$1|2|3|4|5|6|7|Q|8|@]|9|@$A|R|B|S|1|T]]|C|$]]|$1|D|3|E|5|F|7|U|8|@]|9|@]|C|$G|H]]|$1|I|3|-4|5|6|7|V|8|@]|9|@]|C|$]]]|J|$K|$5|L|M|N|C|$O|P]]]]

Like someone mentioned, use <a href="https://msdn.microsoft.com/en-us/library/dd795962.aspx" rel="nofollow">CFolderPickerDialog</a> which works great. I would like to give you example how to use it especially when using the multi select flag:

<pre><code>CFolderPickerDialog folderPickerDialog(initialFolder, OFN_FILEMUSTEXIST | OFN_ALLOWMULTISELECT | OFN_ENABLESIZING, this,
 sizeof(OPENFILENAME));

 CString folderPath;

 if (folderPickerDialog.DoModal() == IDOK)
 {

 POSITION pos = folderPickerDialog.GetStartPosition();

 while (pos)
 {
 folderPath = folderPickerDialog.GetNextPathName(pos);

 }
 }
</code></pre>

blocks|key|230229|text|从windows+vista开始，您可以使用Common+Item+Dialog。|type|unstyled|depth|inlineStyleRanges|entityRanges|offset|length|data|230230|void+CQiliRegrvDlg::OnBnClickedSelectDir()
{
HRESULT+hr+=+S_OK;

//+Create+a+new+common+open+file+dialog.
IFileOpenDialog+*pfd+=+NULL;
hr+=+CoCreateInstance(CLSID_FileOpenDialog,+NULL,+CLSCTX_INPROC_SERVER,
++++IID_PPV_ARGS(&pfd));
if+(SUCCEEDED(hr))
{
++++//+Set+the+dialog+as+a+folder+picker.
++++DWORD+dwOptions;
++++hr+=+pfd->GetOptions(&dwOptions);
++++if+(SUCCEEDED(hr))
++++{
++++++++hr+=+pfd->SetOptions(dwOptions+%7C+FOS_PICKFOLDERS);
++++}

++++//+Set+the+title+of+the+dialog.
++++if+(SUCCEEDED(hr))
++++{
++++++++hr+=+pfd->SetTitle(L"Folder");
++++}
++++//+Show+the+open+file+dialog.
++++if+(SUCCEEDED(hr))
++++{
++++++++hr+=+pfd->Show(m_hWnd);
++++++++if+(SUCCEEDED(hr))
++++++++{
++++++++++++//+Get+the+selection+from+the+user.
++++++++++++IShellItem+*psiResult+=+NULL;
++++++++++++hr+=+pfd->GetResult(&psiResult);
++++++++++++if+(SUCCEEDED(hr))
++++++++++++{
++++++++++++++++PWSTR+pszPath+=+NULL;
++++++++++++++++hr+=+psiResult->GetDisplayName(SIGDN_FILESYSPATH,+&pszPath);
++++++++++++++++if+(SUCCEEDED(hr))
++++++++++++++++{
++++++++++++++++++++m_appDir+=+pszPath;
++++++++++++++++++++SetDlgItemText(IDC_STATIC,+m_appDir);
++++++++++++++++++++CoTaskMemFree(pszPath);
++++++++++++++++}
++++++++++++++++psiResult->Release();
++++++++++++}
++++++++}
++++}

++++pfd->Release();
++}
++}|code-block|syntax|javascript|230231|entityMap|0|LINK|mutability|MUTABLE|url|https://msdn.microsoft.com/en-us/library/windows/desktop/bb776913(v=vs.85).aspx^0|M|I|0|0|0^^$0|@$1|2|3|4|5|6|7|Q|8|@]|9|@$A|R|B|S|1|T]]|C|$]]|$1|D|3|E|5|F|7|U|8|@]|9|@]|C|$G|H]]|$1|I|3|-4|5|6|7|V|8|@]|9|@]|C|$]]]|J|$K|$5|L|M|N|C|$O|P]]]]

starting from windows vista,you can use the <a href="https://msdn.microsoft.com/en-us/library/windows/desktop/bb776913(v=vs.85).aspx" rel="nofollow noreferrer">Common Item Dialog</a> .

<pre><code>void CQiliRegrvDlg::OnBnClickedSelectDir()
{
HRESULT hr = S_OK;

// Create a new common open file dialog.
IFileOpenDialog *pfd = NULL;
hr = CoCreateInstance(CLSID_FileOpenDialog, NULL, CLSCTX_INPROC_SERVER,
 IID_PPV_ARGS(&amp;pfd));
if (SUCCEEDED(hr))
{
 // Set the dialog as a folder picker.
 DWORD dwOptions;
 hr = pfd-&gt;GetOptions(&amp;dwOptions);
 if (SUCCEEDED(hr))
 {
 hr = pfd-&gt;SetOptions(dwOptions | FOS_PICKFOLDERS);
 }

 // Set the title of the dialog.
 if (SUCCEEDED(hr))
 {
 hr = pfd-&gt;SetTitle(L"Folder");
 }
 // Show the open file dialog.
 if (SUCCEEDED(hr))
 {
 hr = pfd-&gt;Show(m_hWnd);
 if (SUCCEEDED(hr))
 {
 // Get the selection from the user.
 IShellItem *psiResult = NULL;
 hr = pfd-&gt;GetResult(&amp;psiResult);
 if (SUCCEEDED(hr))
 {
 PWSTR pszPath = NULL;
 hr = psiResult-&gt;GetDisplayName(SIGDN_FILESYSPATH, &amp;pszPath);
 if (SUCCEEDED(hr))
 {
 m_appDir = pszPath;
 SetDlgItemText(IDC_STATIC, m_appDir);
 CoTaskMemFree(pszPath);
 }
 psiResult-&gt;Release();
 }
 }
 }

 pfd-&gt;Release();
 }
 }
</code></pre>

blocks|key|1531682|text|在我看来，您所要求的答案就在|type|unstyled|depth|inlineStyleRanges|entityRanges|data|1531683|CMFCPropertyGridFileProperty::OnClickButton(CPoint+/*point*/)|code-block|syntax|javascript|1531684|中的|1531685|<Your+Visual+Studio+installation+folder>\VC\atlmfc\src\mfc\afxpropertygridctrl.cpp|1531686|文件。|1531687|如果你没有访问代码的权限，我将发布它的基本部分：|1531688|CString+strPath+=+m_varValue.bstrVal;
BOOL+bUpdate+=+FALSE;

if+(m_bIsFolder)
{
++++if+(afxShellManager+==+NULL)
++++{
++++++++CWinAppEx*+pApp+=+DYNAMIC_DOWNCAST(CWinAppEx,+AfxGetApp());
++++++++if+(pApp+!=+NULL)
++++++++{
++++++++++++pApp->InitShellManager();
++++++++}
++++}

++++if+(afxShellManager+==+NULL)
++++{
++++++++ASSERT(FALSE);
++++}
++++else
++++{
++++++++bUpdate+=+afxShellManager->BrowseForFolder(strPath,+m_pWndList,+strPath);
++++}
}
else
{
++++CFileDialog+dlg(m_bOpenFileDialog,+m_strDefExt,+strPath,+m_dwFileOpenFlags,+m_strFilter,+m_pWndList);
++++if+(dlg.DoModal()+==+IDOK)
++++{
++++++++bUpdate+=+TRUE;
++++++++strPath+=+dlg.GetPathName();
++++}
}|1531689|如你所见，当微软想要打开一个选择文件夹的对话框时，它本身并不使用Cfiledialog类。|1531690|要使用这样的代码，您的应用程序类必须派生自CWinAppEx，而不是CWinApp|1531691|entityMap^0|0|0|0|0|0|0|0|0|0^^$0|@$1|2|3|4|5|6|7|W|8|@]|9|@]|A|$]]|$1|B|3|C|5|D|7|X|8|@]|9|@]|A|$E|F]]|$1|G|3|H|5|6|7|Y|8|@]|9|@]|A|$]]|$1|I|3|J|5|D|7|Z|8|@]|9|@]|A|$E|F]]|$1|K|3|L|5|6|7|10|8|@]|9|@]|A|$]]|$1|M|3|N|5|6|7|11|8|@]|9|@]|A|$]]|$1|O|3|P|5|D|7|12|8|@]|9|@]|A|$E|F]]|$1|Q|3|R|5|6|7|13|8|@]|9|@]|A|$]]|$1|S|3|T|5|6|7|14|8|@]|9|@]|A|$]]|$1|U|3|-4|5|6|7|15|8|@]|9|@]|A|$]]]|V|$]]

Seems to me the answer you are asking for is inside the code of 

<pre><code>CMFCPropertyGridFileProperty::OnClickButton(CPoint /*point*/)
</code></pre>

of the 

<pre><code>&lt;Your Visual Studio installation folder&gt;\VC\atlmfc\src\mfc\afxpropertygridctrl.cpp
</code></pre>

file.

If you do not have access to the code, I will post the essential part of it:

<pre><code>CString strPath = m_varValue.bstrVal;
BOOL bUpdate = FALSE;

if (m_bIsFolder)
{
 if (afxShellManager == NULL)
 {
 CWinAppEx* pApp = DYNAMIC_DOWNCAST(CWinAppEx, AfxGetApp());
 if (pApp != NULL)
 {
 pApp-&gt;InitShellManager();
 }
 }

 if (afxShellManager == NULL)
 {
 ASSERT(FALSE);
 }
 else
 {
 bUpdate = afxShellManager-&gt;BrowseForFolder(strPath, m_pWndList, strPath);
 }
}
else
{
 CFileDialog dlg(m_bOpenFileDialog, m_strDefExt, strPath, m_dwFileOpenFlags, m_strFilter, m_pWndList);
 if (dlg.DoModal() == IDOK)
 {
 bUpdate = TRUE;
 strPath = dlg.GetPathName();
 }
}
</code></pre>

As you see, Microsoft itself does not use the Cfiledialog class when wants to open a dialog for picking folders.

For using code like that, your application class MUST be derived from CWinAppEx, not CWinApp

blocks|key|1531739|text|实际上，有一种方法可以做到这一点--我在codeguru:+"Selected+files+and+folders+in+CFileDialog"中找到了它|type|unstyled|depth|inlineStyleRanges|entityRanges|offset|length|data|1531740|如果您愿意创建自己的CFileDialog实现，例如：class+CMyFileDialog+:+public+CFileDialog|style|CODE|1531741|您可以添加以下代码，它应该可以工作(它与codeguru+example略有不同)：|1531742|//+This+code+overrides+the+OnNotify+message+of+the+CFileDialog
//+and+catches+the+CDN_SELCHANGE,+this+way+you+can+also+do+
//+something+with+the+selected+folders.
BOOL+CMyFileDialog::OnNotify(WPARAM+wParam,+LPARAM+lParam,+LRESULT*+pResult)
{
++++NMHDR*+pNotificationParam+=+(NMHDR*)lParam;

++++//+Check+that+we+got+to+the+selection+change+notification.
++++int+code+=+pNotificationParam->code;
++++if+(code+==+CDN_SELCHANGE)
++++{
++++++++CStringArray+theSelection;

++++++++GetListControllSelectedItems(theSelection);

++++++++//+Do+as+you+want+with+theSelection.
++++}

++++return+CFileDialog::OnNotify(wParam,+lParam,+pResult);
}

//+The+following+Code+is+accessing+the+selection+in+the+CFileDialog
//+and+filling+a+string+array+with+the+selected+names
BOOL+CMyFileDialog::GetListControllSelectedItems(CStringArray&+selectedItemNames)
{
++++BOOL+rc+=+FALSE;
++++//+Get+the+list+control+of+the+file+dialog.
++++CWnd*+pParentWnd+=+GetParent();
++++CWnd*+pListControlWnd+=+pParentWnd->GetDlgItem(lst2);
++++if+(pListControlWnd)+{

++++++++//+Get+the+selection+from+the+list+control.
++++++++CListCtrl*+pListCtrl+=+(CListCtrl*)(pListControlWnd->GetDlgItem(1));

++++++++UINT+selectionCount+=+pListCtrl->GetSelectedCount();

++++++++//+When+there+are+items+selected.
++++++++if+(selectionCount)+{
++++++++++++rc+=+TRUE;
++++++++++++selectedItemNames.RemoveAll();
++++++++++++POSITION+itemPos+=+pListCtrl->GetFirstSelectedItemPosition();
++++++++++++while+(itemPos+!=+NULL)
++++++++++++{
++++++++++++++++int+itemNum+=+pListCtrl->GetNextSelectedItem(itemPos);
++++++++++++++++CString+currentItemName+=+pListCtrl->GetItemText(itemNum,+0);
++++++++++++++++selectedItemNames.Add(currentItemName);
++++++++++++}
++++++++}
++++}
++++
++++return+rc;
}|code-block|syntax|javascript|1531743|注意:在CFileDialog::OnFileNameChange+of+the+Microsoft+MFC+documentation中，他们实际上暗示了这个解决方案，但没有详细说明。|1531744|我在我的非常旧的遗留代码中遇到了一个问题，我有一个自定义的文件对话框，实际上需要保存一个文件夹！|1531745|在经历了22年的艰苦和痛苦之后，我的代码现在完成了……|1531746|entityMap|0|LINK|mutability|MUTABLE|url|https://forums.codeguru.com/showthread.php?114510-Selected-files-and-folders-in-CFileDialog|1|2|https://docs.microsoft.com/en-us/cpp/mfc/reference/cfiledialog-class?view=msvc-160#onfilenamechange^0|K|1H|0|0|R|14|0|K|G|1|0|0|4|T|4|1S|2|0|0|0^^$0|@$1|2|3|4|5|6|7|15|8|@]|9|@$A|16|B|17|1|18]]|C|$]]|$1|D|3|E|5|6|7|19|8|@$A|1A|B|1B|F|G]]|9|@]|C|$]]|$1|H|3|I|5|6|7|1C|8|@]|9|@$A|1D|B|1E|1|1F]]|C|$]]|$1|J|3|K|5|L|7|1G|8|@]|9|@]|C|$M|N]]|$1|O|3|P|5|6|7|1H|8|@$A|1I|B|1J|F|G]]|9|@$A|1K|B|1L|1|1M]]|C|$]]|$1|Q|3|R|5|6|7|1N|8|@]|9|@]|C|$]]|$1|S|3|T|5|6|7|1O|8|@]|9|@]|C|$]]|$1|U|3|-4|5|6|7|1P|8|@]|9|@]|C|$]]]|V|$W|$5|X|Y|Z|C|$10|11]]|12|$5|X|Y|Z|C|$10|11]]|13|$5|X|Y|Z|C|$10|14]]]]

Actually there is a way to do this - I found it in <a href="https://forums.codeguru.com/showthread.php?114510-Selected-files-and-folders-in-CFileDialog" rel="nofollow noreferrer">codeguru: &quot;Selected files and folders in CFileDialog&quot;</a>
If you are willing to make your own implementation of CFileDialog such as:
<code>class CMyFileDialog : public CFileDialog</code>
You can add the following code and it should work (It is slightly different from the <a href="https://forums.codeguru.com/showthread.php?114510-Selected-files-and-folders-in-CFileDialog" rel="nofollow noreferrer">codeguru example</a>):
<pre><code>// This code overrides the OnNotify message of the CFileDialog
// and catches the CDN_SELCHANGE, this way you can also do 
// something with the selected folders.
BOOL CMyFileDialog::OnNotify(WPARAM wParam, LPARAM lParam, LRESULT* pResult)
{
 NMHDR* pNotificationParam = (NMHDR*)lParam;

 // Check that we got to the selection change notification.
 int code = pNotificationParam-&gt;code;
 if (code == CDN_SELCHANGE)
 {
 CStringArray theSelection;

 GetListControllSelectedItems(theSelection);

 // Do as you want with theSelection.
 }

 return CFileDialog::OnNotify(wParam, lParam, pResult);
}

// The following Code is accessing the selection in the CFileDialog
// and filling a string array with the selected names
BOOL CMyFileDialog::GetListControllSelectedItems(CStringArray&amp; selectedItemNames)
{
 BOOL rc = FALSE;
 // Get the list control of the file dialog.
 CWnd* pParentWnd = GetParent();
 CWnd* pListControlWnd = pParentWnd-&gt;GetDlgItem(lst2);
 if (pListControlWnd) {

 // Get the selection from the list control.
 CListCtrl* pListCtrl = (CListCtrl*)(pListControlWnd-&gt;GetDlgItem(1));

 UINT selectionCount = pListCtrl-&gt;GetSelectedCount();

 // When there are items selected.
 if (selectionCount) {
 rc = TRUE;
 selectedItemNames.RemoveAll();
 POSITION itemPos = pListCtrl-&gt;GetFirstSelectedItemPosition();
 while (itemPos != NULL)
 {
 int itemNum = pListCtrl-&gt;GetNextSelectedItem(itemPos);
 CString currentItemName = pListCtrl-&gt;GetItemText(itemNum, 0);
 selectedItemNames.Add(currentItemName);
 }
 }
 }
 
 return rc;
}
</code></pre>
Note: In <a href="https://docs.microsoft.com/en-us/cpp/mfc/reference/cfiledialog-class?view=msvc-160#onfilenamechange" rel="nofollow noreferrer"><code>CFileDialog::OnFileNameChange</code> of the Microsoft MFC documentation</a> they actually do hint toward this solution, but without elaborating too much.
I had a problem in my very old, legacy code, where I have a customized file dialog that actually needs to save a folder!!!
After twenty two years of hardship and pain, my code is now complete...

When I try to instantiate a <code>CFileDialog</code> object it shows both the folders and files. How do you create a <code>CFileDialog</code> that browses for folders alone?

CFileDialog :: Browse folders

翻译质量差，导致语言生硬或混乱。

没有提供实际的解决方法或示例。

解答不清晰，无法理解或解决问题。

页面排版不美观，阅读体验差。

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功能2上新100个字符功能2上新100个字符功能2上新100个字符功能2上新100个字符功能2上新100个字符功能2上新100个字符功能2上新100个字符功能2上新100个字符功能2上新100个字符。

功能5描述100个字符功能5描述100个字符功能5描述100个字符功能5描述100个字符功能5描述100个字符功能5描述100个字符

功能5上新100个字符功能5上新100个字符功能5上新100个字符功能5上新100个字符功能5上新100个字符功能5上新100个字符功能5上新100个字符功能5上新100个字符功能5上新100个字符功能5上新100个字符

功能4上新

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社区富文本编辑器全新改版！诚邀体验～ 

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社区新版编辑器体验调研

当我尝试实例化一个CFileDialog对象时，它会同时显示文件夹和文件。如何创建只浏览文件夹的CFileDialog？

问CFileDialog :：浏览文件夹
EN

回答 7

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问CFileDialog :：浏览文件夹EN

回答 7

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问CFileDialog :：浏览文件夹
EN