这是"串口通信编程实践"一书的程序源代码

				// SerialPortTest2.h : main header file for the SERIALPORTTEST2 application
				//
				
				#if !defined(AFX_SERIALPORTTEST2_H__C0B3B644_5574_11D8_870F_00E04C3F78CA__INCLUDED_)
				#define AFX_SERIALPORTTEST2_H__C0B3B644_5574_11D8_870F_00E04C3F78CA__INCLUDED_
				
				#if _MSC_VER > 1000
				#pragma once
				#endif // _MSC_VER > 1000
				
				#ifndef __AFXWIN_H__
					#error include 'stdafx.h' before including this file for PCH
				#endif
				
				#include "resource.h"       // main symbols
				
				/////////////////////////////////////////////////////////////////////////////
				// CSerialPortTest2App:
				// See SerialPortTest2.cpp for the implementation of this class
				//
				
				class CSerialPortTest2App : public CWinApp
				{
				public:
					CSerialPortTest2App();
				
				// Overrides
					// ClassWizard generated virtual function overrides
					//{{AFX_VIRTUAL(CSerialPortTest2App)
					public:
					virtual BOOL InitInstance();
					//}}AFX_VIRTUAL
				
				// Implementation
					//{{AFX_MSG(CSerialPortTest2App)
					afx_msg void OnAppAbout();
						// 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_SERIALPORTTEST2_H__C0B3B644_5574_11D8_870F_00E04C3F78CA__INCLUDED_)