书上找到的

				// 毕业设计数字逻辑电子仿真器Doc.h : interface of the CMyDoc class
				//
				/////////////////////////////////////////////////////////////////////////////
				
				#if !defined(AFX_DOC_H__DFA71A09_8CB1_11D8_903B_000795A52E88__INCLUDED_)
				#define AFX_DOC_H__DFA71A09_8CB1_11D8_903B_000795A52E88__INCLUDED_
				
				#if _MSC_VER > 1000
				#pragma once
				#endif // _MSC_VER > 1000
				
				
				class CMyDoc : public CDocument
				{
				protected: // create from serialization only
					CMyDoc();
					DECLARE_DYNCREATE(CMyDoc)
				
				// Attributes
				public:
				
				// Operations
				public:
				
				// Overrides
					// ClassWizard generated virtual function overrides
					//{{AFX_VIRTUAL(CMyDoc)
					public:
					virtual BOOL OnNewDocument();
					virtual void Serialize(CArchive& ar);
					//}}AFX_VIRTUAL
				
				// Implementation
				public:
					virtual ~CMyDoc();
				#ifdef _DEBUG
					virtual void AssertValid() const;
					virtual void Dump(CDumpContext& dc) const;
				#endif
				
				protected:
				
				// Generated message map functions
				protected:
					//{{AFX_MSG(CMyDoc)
						// NOTE - the ClassWizard will add and remove member functions here.
						//    DO NOT EDIT what you see in these blocks of generated code !
					//}}AFX_MSG
					DECLARE_MESSAGE_MAP()
				};
				
				/////////////////////////////////////////////////////////////////////////////
				
				//{{AFX_INSERT_LOCATION}}
				// Microsoft Visual C++ will insert additional declarations immediately before the previous line.
				
				#endif // !defined(AFX_DOC_H__DFA71A09_8CB1_11D8_903B_000795A52E88__INCLUDED_)