//
//??main.m
//??Mathexpression
//
//??Created?by?Joyce?on?10/6/15.
//??Copyright?（c）?2015?Joyce.?All?rights?reserved.
//

/*實驗2：利用棧實現數學表達式求值
?具體內容:利用?object?C?和?Foundation?框架利用棧實現數值表達式的求值。（要求不使用?NSexpression）。
????例如:輸入字符串:?10÷6×7+15-8?給出正確的計算值。或輸出“字符串不是數學表達式無法計算“。
?Owner:?SA15226134?曹瑞娟
?*/

#import?
#include?“MyCalculator.h“

int?main（int?argc?const?char?*?argv[]）?{
????//輸入表達式
????NSString?*inputExps?=?@“-10*（7+8）/6+2*7.1-2“;
????NSLog（@“表達式：%@“inputExps）;
????
????//使用自定義的堆棧實現運算結果
????MyCalculator?*calculator?=?[[MyCalculator?alloc]init];
????NSString?*result?=?[calculator?expressionCalculate:inputExps];
????NSLog（@“自定義堆棧實現的運算結果：%@“result）;
????
????//使用NSexpression驗證結果
????NSexpression?*expression?=?[NSexpression?expressionWithFormat:inputExps];
????NSSt

?屬性????????????大小?????日期????時間???名稱
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?????目錄???????????0??2015-10-13?22:33??Mathexpression\
?????文件????????6148??2015-10-13?22:36??Mathexpression\.DS_Store
?????目錄???????????0??2015-11-22?09:58??__MACOSX\
?????目錄???????????0??2015-11-22?09:58??__MACOSX\Mathexpression\
?????文件?????????120??2015-10-13?22:36??__MACOSX\Mathexpression\._.DS_Store
?????目錄???????????0??2015-11-14?15:40??Mathexpression\.git\
?????目錄???????????0??2015-10-06?17:05??Mathexpression\.git\branches\
?????文件???????????6??2015-10-13?22:29??Mathexpression\.git\COMMIT_EDITMSG
?????文件?????????137??2015-10-06?17:05??Mathexpression\.git\config
?????文件??????????73??2015-10-06?17:05??Mathexpression\.git\description
?????文件??????????23??2015-10-06?17:05??Mathexpression\.git\HEAD
?????目錄???????????0??2015-10-06?17:05??Mathexpression\.git\hooks\
?????文件?????????452??2015-10-06?17:05??Mathexpression\.git\hooks\applypatch-msg.sample
?????文件?????????896??2015-10-06?17:05??Mathexpression\.git\hooks\commit-msg.sample
?????文件?????????189??2015-10-06?17:05??Mathexpression\.git\hooks\post-update.sample
?????文件?????????398??2015-10-06?17:05??Mathexpression\.git\hooks\pre-applypatch.sample
?????文件????????1642??2015-10-06?17:05??Mathexpression\.git\hooks\pre-commit.sample
?????文件????????1352??2015-10-06?17:05??Mathexpression\.git\hooks\pre-push.sample
?????文件????????4951??2015-10-06?17:05??Mathexpression\.git\hooks\pre-rebase.sample
?????文件????????1239??2015-10-06?17:05??Mathexpression\.git\hooks\prepare-commit-msg.sample
?????文件????????3611??2015-10-06?17:05??Mathexpression\.git\hooks\update.sample
?????文件?????????728??2015-10-13?22:29??Mathexpression\.git\index
?????目錄???????????0??2015-10-06?17:05??Mathexpression\.git\info\
?????文件??????????40??2015-10-06?17:05??Mathexpression\.git\info\exclude
?????目錄???????????0??2015-11-22?09:58??__MACOSX\Mathexpression\.git\
?????目錄???????????0??2015-11-22?09:58??__MACOSX\Mathexpression\.git\info\
?????文件?????????171??2015-10-06?17:05??__MACOSX\Mathexpression\.git\info\._exclude
?????目錄???????????0??2015-10-06?17:05??Mathexpression\.git\logs\
?????文件?????????612??2015-10-13?22:29??Mathexpression\.git\logs\HEAD
?????目錄???????????0??2015-10-06?17:05??Mathexpression\.git\logs\refs\
?????目錄???????????0??2015-10-06?17:05??Mathexpression\.git\logs\refs\heads\
............此處省略99個文件信息