#include "widget.h"
#include <QDebug>


Widget::Widget(QWidget *parent)
    : QWidget(parent)
{
    setWindowTitle("加法计数器");

    setFixedSize(500,100);

    QPushButton *sumBtn=new QPushButton("计算",this);
    sumBtn->setFixedSize(100,50);
    sumBtn->move(300,25);

    le1 = new QLineEdit(this);
    le2 = new QLineEdit(this);
    le1->setFixedSize(100,50);
    le2->setFixedSize(100,50);
    le1->move(0,25);
    le2->move(200,25);

    lable1 = new QLabel(this);
    lable1->setText("+");
    lable1->setFixedSize(10,50);
    lable1->move(145,25);

    lable2 = new QLabel(this);
    lable2->setText("计算结果");
    lable2->setFixedSize(100,50);
    lable2->move(400,25);

    connect(sumBtn,&QPushButton::clicked,this,&Widget::sum);


//    connect(sumBtn,&QPushButton::clicked,this,lable2->setText(QString::number(c)));

}

void Widget::sum(){
    lable2->setText("点击");
    QString n1 = le1->text();
    QString n2 = le2->text();
    qDebug() << n1 << " " << n2;

    // 将文本转化为数值
    int ret = n1.toInt()+n2.toInt();
    QString str = QString::number(ret);
    qDebug() << str;
    lable2->setText(str);
}

Widget::~Widget()
{
}