push button 交替输出

#include "mainwindow.h"
#include "ui_mainwindow.h"
#include <QDebug>

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

    //给文本框赋值
    //ui->textEdit->setText("1111111111");

    //用html格式给文本框赋值
    ui->textEdit->setHtml("<strong>123123</strong>");

    //读取文本框的值 string格式
    //qDebug()<<ui->textEdit->toPlainText()<<endl;

    //html形式 获取文本框的值
    qDebug()<<ui->textEdit->toHtml()<<endl;


    ui->pushButton->setCheckable("ture");
    connect(ui->pushButton,SIGNAL(clicked(bool)),this,SLOT(click_ok(bool)));
}

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

void MainWindow::click_ok(bool ret)
{
    if(ret == true)
        qDebug()<<"ok"<<endl;
    else
        qDebug()<<"no"<<endl;
}