#include?“stdafx.h“
#include?“Point24.h“
#include?“expression.h“

#ifdef?_DEBUG
#undef?THIS_FILE
static?char?THIS_FILE[]=__FILE__;
#define?new?DEBUG_NEW
#endif

Cexpression::Cexpression（）
{
}
Cexpression::~Cexpression（）
{
}
INT?Cexpression::operate（FLOAT&?r?FLOAT?a?CHAR?theta?FLOAT?b）
{
	switch（theta）
	{
	case?‘+‘:
		r?=?a?+?b;
		break;
	case?‘-‘:
		r?=?a?-?b;
		break;
	case?‘*‘:
		r?=?a?*?b;
		break;
	case?‘?‘:
	case?‘/‘:
		if?（!b）?return（-1）;
		r?=?a?/?b;
		break;
	default:
		return（-2）;
	}
	return（0）;
}
CHAR?Cexpression::prcede（CHAR?optr1?CHAR?optr2）
{
	switch（optr1）
	{
	case?‘+‘:
	case?‘-‘:
		switch（optr2）
		{
		case?‘+‘:
		case?‘-‘:
		case?‘）‘:
		case?0:
			return（‘>‘）;
		case?‘*‘:
		case?‘/‘:
		case?‘（‘:
			return（‘<‘）;
		}

?屬性????????????大小?????日期????時間???名稱
-----------?---------??----------?-----??----

?????文件????????473??2016-12-16?07:43??24點(diǎn)\24點(diǎn).html

?????文件???????2634??2002-02-25?06:36??24點(diǎn)\expression.cpp

?????文件???????1206??2002-02-24?11:38??24點(diǎn)\expression.h

?????文件?????162804??2004-06-10?22:15??24點(diǎn)\Lose.wav

?????文件???????1577??2002-02-25?06:29??24點(diǎn)\Point24.clw

?????文件???????1269??2002-02-23?10:55??24點(diǎn)\Point24.cpp

?????文件???????4378??2002-02-24?12:25??24點(diǎn)\Point24.dsp

?????文件????????537??2002-02-23?10:55??24點(diǎn)\Point24.dsw

?????文件?????438272??2002-02-26?02:38??24點(diǎn)\Point24.exe

?????文件???????1193??2002-02-23?10:55??24點(diǎn)\Point24.h

?????文件???????5016??2002-02-25?06:29??24點(diǎn)\Point24.rc

?????文件??????12369??2002-02-26?02:38??24點(diǎn)\Point24Dlg.cpp

?????文件???????1855??2002-02-25?02:36??24點(diǎn)\Point24Dlg.h

?????文件??????49810??2002-02-24?06:55??24點(diǎn)\res\BACK.bmp

?????文件?????360502??2002-02-23?11:41??24點(diǎn)\res\CARDS.BMP

?????文件???????1078??2002-02-23?11:01??24點(diǎn)\res\Point24.ico

?????文件????????399??2002-02-23?10:55??24點(diǎn)\res\Point24.rc2

?????文件???????1327??2002-02-24?11:50??24點(diǎn)\Resource.h

?????文件????????209??2002-02-23?10:55??24點(diǎn)\StdAfx.cpp

?????文件????????484??2002-02-24?11:51??24點(diǎn)\StdAfx.h

?????文件??????59410??2004-06-10?20:45??24點(diǎn)\Win.wav

?????目錄??????????0??2018-07-30?16:51??24點(diǎn)\res

?????目錄??????????0??2018-07-30?16:51??24點(diǎn)

-----------?---------??----------?-----??----

??????????????1106802????????????????????23