Qt-这些代码段是什么意思

C++ GUI Programming with Qt 4

GoToCellDialog::GoToCellDialog(QWidget *parent):QDialog(parent)

QDialog(parent)

setupUi(this);

gotocelldialog.cpp

GoToCellDialog::GoToCellDialog(QWidget *parent) : QDialog(parent)

parent

QDialog

class foo
{
    int number ;
    public:
        foo(int i) : number(i) // Means copying value of i to number
        {}
};

class bar : public foo
{
    public:
        bar(int temp) : foo(temp)
        { // <- Before getting here, foo sub object must be constructed.
          //  Because the order of construction takes from parent to child.
        }
};

bar

foo

foo

setupUi(this);