IDABORT: Abort button was selected. IDCANCEL: Cancel button was selected. IDCONTINUE: Continue button was selected. IDIGNORE: Ignore button was selected. IDNO: No button was selected. IDOK: OK button was selected. IDRETRY: Retry button was selected. IDTRYAGAIN: Try Again button was selected. IDYES: Yes button was selected.
将ret==IDCANCEL换成ret==IDNO就OK了!
IDCANCEL: Cancel button was selected.
IDCONTINUE: Continue button was selected.
IDIGNORE: Ignore button was selected.
IDNO: No button was selected.
IDOK: OK button was selected.
IDRETRY: Retry button was selected.
IDTRYAGAIN: Try Again button was selected.
IDYES: Yes button was selected.