（科学+程序员）计算器

#include "calculator.h" #include "ui_calculator.h" #include <QDebug> #include <math.h> #include "dialog.h" Calculator::Calculator(QWidget *parent) : QMainWindow(parent), ui(new Ui::Calculator) { ui->setupUi(this); b=true; } Calculator::~Calculator() { delete ui; } void Calculator::on_one_clicked() { ui->express_lineEdit->insert(tr("1")); } void Calculator::on_two_clicked() { ui->express_lineEdit->insert(tr("2")); } void Calculator::on_three_clicked() { ui->express_lineEdit->insert(tr("3")); } void Calculator::on_four_clicked() { ui->express_lineEdit->insert(tr("4")); } void Calculator::on_five_clicked() { ui->express_lineEdit->insert(tr("5")); } void Calculator::on_six_clicked() { ui->express_lineEdit->insert(tr("6")); } void Calculator::on_seven_clicked() { ui->express_lineEdit->insert(tr("7")); } void Calculator::on_eight_clicked() { ui->express_lineEdit->insert(tr("8")); } void Calculator::on_nine_clicked() { ui->express_lineEdit->insert(tr("9")); } void Calculator::on_zero_clicked() { ui->express_lineEdit->insert(tr("0")); } void Calculator::on_operAdd_pushButton_clicked() { ui->express_lineEdit->insert(tr("+")); } void Calculator::on_operSubtract_pushButton_clicked() { ui->express_lineEdit->insert(tr("-")); } void Calculator::on_operMultiply_pushButton_clicked() { ui->express_lineEdit->insert(tr("*")); } void Calculator::on_operDivide_pushButton_clicked() { ui->express_lineEdit->insert(tr("/")); } void Calculator::on_point_pushButton_clicked() { ui->express_lineEdit->insert(tr(".")); } void Calculator::on_backSpace_clicked() { ui->express_lineEdit->backspace(); } void Calculator::on_lBracket_clicked() { ui->express_lineEdit->insert(tr("(")); } void Calculator::on_rBracket_clicked() { ui->express_lineEdit->insert(tr(")")); } void Calculator::on_clear_clicked() { ui->express_lineEdit->clear(); ui->result_lineEdit->clear(); } void Calculator::on_sin_clicked() { ui->express_lineEdit->insert(tr("sin()")); } void Calculator::on_cos_clicked() { ui->express_lineEdit->insert(tr("cos()")); } void Calculator::on_tan_clicked() { ui->express_lineEdit->insert(tr("tan()")); } void Calculator::on_rank_clicked() { ui->express_lineEdit->insert(tr("!")); } void Calculator::on_pushButton_clicked() { ui->express_lineEdit->insert(tr("^")); } void Calculator::on_log_clicked() { ui->express_lineEdit->insert(tr("log()")); } void Calculator::on_ln_clicked() { ui->express_lineEdit->insert(tr("ln()")); } void Calculator::on_pushButton_3_clicked() { ui->express_lineEdit->insert(tr("sqrt()")); } void Calculator::on_result_pushButton_clicked() { QString m=ui->express_lineEdit->text(); m=count(m); if(!b) { b=true; ui->result_lineEdit->setText(" "); ui->label->setText("sb fuck your mother"); } else { ui->result_lineEdit->setText(m); } } QString Calculator::count(QString m) { if(m.contains("sin")||m.contains("cos")||m.contains("tan")) { //qDebug()<<"1213132"; QString str; //m="#"+m+"#"; int start=0,end=0,n=0; for(int i=0;i<m.length();i++) { if(m.at(i)=='i'||m.at(i)=='o'||m.at(i)=='a') { n++; start=i; } if(n==1&&m.at(i)==')') { end=i; } if(start!=end&&end!=0) { qDebug()<<"jinru"; QString temp1,temp2,temp; temp=m.mid(start+3,end-start-3); temp1=count(temp); temp2=m.mid(start-1,3); m.remove(start-1,end-start+2); qDebug()<<m; qDebug()<<temp1<<temp2; str=count(temp1,temp2); qDebug()<<str; if(end-start+1==i) { m.insert(start-1,str); return count(m); } else //if(end-start+1!=i) { qDebug()<<"dddsdf"; if(str.at(0)=='-'&&(m.at(start-2)=='+'||m.at(start-2)=='-')) { qDebug()<<"d"<<str; str=str.mid(1); m.insert(start-1,str); qDebug()<<"dd"<<m; if(m.at(start-2)=='-') { m.remove(start-2,1); if(start-2!=0) { m.insert(start-2,'+'); } } } else { m.insert(start-1,str); } return count(m); } } } } else if(m.contains("log")) { QString str; //m="#"+m+"#"; int start=0,end=0,n=0; for(int i=0;i<m.length();i++) { if(m.at(i)=='o') { n++; start=i; } if(n==1&&m.at(i)==')') { end=i; } if(start!=end&&end!=0) { qDebug()<<"jinru"; QString temp1,temp2,temp; temp=m.mid(start+3,end-start-3); temp1=count(temp); temp2=m.mid(start-1,3); m.remove(start-1,end-start+2); qDebug()<<m; qDebug()<<temp1<<temp2; str=count(temp1,temp2); qDebug()<<str; if(end-start+1==i) { return count(str); } else { qDebug()<<"dddsdf"; if(str.at(0)=='-'&&(m.at(start-2)=='+'||m.at(start-2)=='-')) { qDebug()<<"dddsdf"; qDebug()<<"d"<<str; str=str.mid(1); m.insert(start-1,str); qDebug()<<"dd"<<m; if(m.at(start-2)=='-') { m.remove(start-2,1); if(start-2!=0) { m.insert(start-2,'+'); } } } else { m.insert(start-1,str); } return count(m); } } } } else if(m.contains("ln")) { QString str; int start=0,end=0,n=0; for(int i=0;i<m.length();i++) { if(m.at(i)=='l') { n++; start=i; } if(n==1&&m.at(i)==')') { end=i; } if(start!=end&&end!=0) { QString temp1,temp2,temp; temp=m.mid(start+3,end-start-3); temp1=count(temp); temp2=m.mid(start,2); str=count(temp1,temp2); m.remove(start,end-start+3); qDebug()<<temp1<<temp2; qDebug()<<str; if(start==0) { qDebug()<<"ok"; return count(str); } else