《C++ GUI Qt 4编程》(第2版)第三章中有段:
setColumnRange('A','Z');
{
primaryColumnCombo->clear();
secondaryColumnCombo->clear();
tertiaryColumnCombo->clear();
secondaryColumnCombo->addItem(tr("None"));
tertiaryColumnCombo->setMinimumSize(SecondaryColumn(Combo->sizeHint());
QChar ch=first;
while (ch<+last){
primarycolumnCombo->addItem(QString(ch));
secondaryColumnCombo->addItem(QString(ch));
tertiaryColumnCombo->addItem(QString(ch));
ch=ch.unicode()+1;
}
}
这些都是什么意思啊?这段我一句都看不懂,希望能得到每行的解释,谢谢!~~~