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資源簡(jiǎn)介

C++版本的四則運(yùn)算事例,支持負(fù)數(shù),表達(dá)式中可以含有空格,講解文章:https://www.cnblogs.com/swarmbees/p/9356346.html

資源截圖

代碼片段和文件信息

#include?“stdafx.h“

#include?
#include?
#include?

#include?
#include?

#include?“l(fā)ineedit.h“

lineedit::lineedit(QWidget?*parent)
????:?QMainWindow(parent)
{
????ui.setupUi(this);

????ui.lineEdit->setValidator(new?QIntValidator(0?100));

????QRegExpValidator?*?validatorPath?=?new?QRegExpValidator(this);
????// QRegExp?rep(“([:]{2}.*)|([a-zA-Z]:(\\\\[\\w]{1})*(\\\\)?))“);
????// QRegExp?rep(“[a-zA-Z]:(\\\\[\\w]{1})*(\\\\)?)“);
????QRegExp?rep(“[:]{2}.*“);
????validatorPath->setRegExp(rep);//云文件路徑
????// validatorPath->setRegExp(QRegExp(“[a-zA-Z]:(\\([0-9a-zA-Z]+))+$“));//云文件路徑
????ui.comboBox->lineEdit()->setValidator(validatorPath);

????connect(ui.lineEdit?&QLineEdit::editingFinished?this?&lineedit::Calcul

?屬性????????????大小?????日期????時(shí)間???名稱
-----------?---------??----------?-----??----
?????目錄???????????0??2018-07-23?15:46??lineedit\
?????文件????????3676??2018-07-23?15:37??lineedit\MyStack.cpp
?????文件????????1175??2018-07-23?15:37??lineedit\MyStack.h
?????目錄???????????0??2018-07-23?19:08??lineedit\Resources\
?????文件????????5615??2018-07-23?17:40??lineedit\lineedit.cpp
?????文件?????????332??2018-07-23?15:33??lineedit\lineedit.h
?????文件????????2734??2012-12-20?23:33??lineedit\lineedit.ico
?????文件??????????68??2017-09-20?14:37??lineedit\lineedit.qrc
?????文件??????????47??2017-09-20?14:37??lineedit\lineedit.rc
?????文件????????1804??2018-07-23?15:46??lineedit\lineedit.ui
?????文件???????11799??2018-07-23?16:45??lineedit\lineedit.vcxproj
?????文件????????3131??2018-07-23?15:37??lineedit\lineedit.vcxproj.filters
?????文件?????????196??2017-09-20?14:37??lineedit\main.cpp
?????文件??????????21??2017-09-20?14:37??lineedit\stdafx.cpp
?????文件??????????22??2017-09-20?14:37??lineedit\stdafx.h

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