为什么 nsstring 的returncount

2025-04-29 18:26:21
推荐回答(1个)
回答1:

/***槽函数:处理buttonBox中的单击按钮事件***/
void MainWindow::on_buttonBox_clicked(QAbstractButton*button)
{
 QString str;
 str = ui->textEdit->toPlainText();
 if(button == ui->buttonBox->button(QDialogButtonBox::Ok))
 {
  if(!ui->lineEdit->text().isEmpty())
  {
    str += ui->lineEdit->text()+"\n";
    ui->textEdit->setPlainText(str);       //更新textEdit
  }
 }
 else if(button == this->Clear)
 {