andu pls help

help.cpp

#include "mainwindow.h"
#include <QtWidgets\QTextEdit>
#include <QtWidgets\QPushButton>
#include <QVBoxLayout>
#include <stdio.h>

MainWindow::MainWindow(QWidget *parent)
	: QMainWindow(parent)
{
	ui.setupUi(this);
	design();
	events();

}

void MainWindow::design() {
	mLayout = new QVBoxLayout;
	setLayout(mLayout);

	mButton = new QPushButton("Apasa",this);
	mLayout->addWidget(mButton);
	
}

void MainWindow::events()
{
	connect(mButton, SIGNAL(released()), this, SLOT(onButtonClick()));
}

void MainWindow::onButtonClick()
{
	mButton->setText(count+"");
	count++;
}

MainWindow::~MainWindow()
{

}