想要当textEdit内容改变时,设置textEdit内容为"shiyanshuju",但是改变内容时程序崩溃。谁能帮帮我?(mainwindow里只有一个textEdit)
mainwindow.h
#ifndef MAINWINDOW_H
#define MAINWINDOW_H
#include <QMainWindow>
namespace Ui {
class MainWindow;
}
class MainWindow : public QMainWindow
{
Q_OBJECT
public:
explicit MainWindow(QWidget *parent = 0);
~MainWindow();
private:
Ui::MainWindow *ui;
public slots:
void accord();
};
#endif // MAINWINDOW_H
main.cpp
#include "mainwindow.h"
#include <QApplication>
int main(int argc, char *argv[])
{
QApplication a(argc, argv);
MainWindow w;
w.show();
return a.exec();
}
mainwindow.cpp
#include "mainwindow.h"
#include "ui_mainwindow.h"
#include<QDebug>
MainWindow::MainWindow(QWidget *parent) :
QMainWindow(parent),
ui(new Ui::MainWindow)
{
ui->setupUi(this);
connect(ui->textEdit,SIGNAL(textChanged()),this,SLOT(accord()));
}
MainWindow::~MainWindow()
{
delete ui;
}
void MainWindow::accord()
{
ui->textEdit->setPlainText("shiyanshuju");
}