这是一个用V++编的计算器

				// Propsheet.cpp : implementation file
				//
				
				#include "stdafx.h"
				#include "Cal.h"
				#include "Propsheet.h"
				
				#ifdef _DEBUG
				#define new DEBUG_NEW
				#undef THIS_FILE
				static char THIS_FILE[] = __FILE__;
				#endif
				
				/////////////////////////////////////////////////////////////////////////////
				// CPropsheet
				
				IMPLEMENT_DYNAMIC(CPropsheet, CPropertySheet)
				
				CPropsheet::CPropsheet(UINT nIDCaption, CWnd* pParentWnd, UINT iSelectPage)
					:CPropertySheet(nIDCaption, pParentWnd, iSelectPage)
				{
				}
				
				CPropsheet::CPropsheet(LPCTSTR pszCaption, CWnd* pParentWnd, UINT iSelectPage)
					:CPropertySheet(pszCaption, pParentWnd, iSelectPage)
				{
				
				}
				
				CPropsheet::~CPropsheet()
				{
				}
				
				
				BEGIN_MESSAGE_MAP(CPropsheet, CPropertySheet)
					//{{AFX_MSG_MAP(CPropsheet)
						// NOTE - the ClassWizard will add and remove mapping macros here.
					//}}AFX_MSG_MAP
				END_MESSAGE_MAP()
				
				/////////////////////////////////////////////////////////////////////////////
				// CPropsheet message handlers