1.相关说明

二进制、十进制、十六进制间的相互转换

2.界面绘制

3.相关主要代码

#include "widget.h"
#include "ui_widget.h"

Widget::Widget(QWidget *parent)
    : QWidget(parent)
    , ui(new Ui::Widget)
{
    ui->setupUi(this);
}

Widget::~Widget()
{
    delete ui;
}

// 计算总价
void Widget::on_btnTotal_clicked()
{
    bool ok = false;
    int num = ui->editNum->text().toInt(&ok, 10);
    if(!ok){
        qDebug("read num failed \n");
        return;
    }
    float price = ui->editPrice->text().toFloat(&ok);
    if(!ok){
        qDebug("read price failed \n");
        return;
    }
    float total = price * num;
    QString str = QString::number(total, 'f', 2);
    ui->editTotal->setText(str);
}

// qDebug测试
void Widget::on_btnDebug_clicked()
{
    qDebug("PI = %f", 3.14159265);
    QString str = QString::number(3.14159265, 'f', 10);
    qDebug("PI = %s", str.toLocal8Bit().data());
}

// DEC --> 其他进制
void Widget::on_btnDecToOther_clicked()
{
    bool ok = false;
    int val = ui->editDec->text().toInt(&ok, 10);
    if(!ok){
        qDebug("DEC --> other failed \n");
        return;
    }
    QString strHex = QString::number(val, 16);
    ui->editHex->setText(strHex);
    QString strBin = QString::number(val, 2);
    ui->editBin->setText(strBin);
}

// BIN --> 其他进制
void Widget::on_btnBinToOther_clicked()
{
    bool ok = false;
    int val = ui->editBin->text().toInt(&ok, 2);
    if(!ok){
        qDebug("BIN --> other failed \n");
        return;
    }
    QString strHex = QString::number(val, 16);
    ui->editHex->setText(strHex);
    QString strDec = QString::number(val, 10);
    ui->editDec->setText(strDec);
}

// HEX --> 其他进制
void Widget::on_btnHexToOther_clicked()
{
    bool ok = false;
    int val = ui->editHex->text().toInt(&ok, 16);
    if(!ok){
        qDebug("HEX --> other failed \n");
        return;
    }
    QString strBin = QString::number(val, 2);
    ui->editBin->setText(strBin);
    QString strDec = QString::number(val, 10);
    ui->editDec->setText(strDec);
}