如图
#include "dialog.h"
#include "ui_dialog.h"
Dialog::Dialog(QWidget *parent)
: QDialog(parent)
, ui(new Ui::Dialog)
{
ui->setupUi(this);
}
Dialog::~Dialog()
{
delete ui;
}
void Dialog::on_pushButton_Clear_clicked()
{
ui->plainTextEdit->clear();
}
void Dialog::on_checkBox_U_clicked(bool checked)
{
QFont font=ui->plainTextEdit->font();
font.setUnderline(checked);
ui->plainTextEdit->setFont(font);
}
按照教程的操作跟着做的,但是错误是无法理解的