How to use Qt Designed Ui file

Ui Designed file

1. In Working, we can use Qt Designer to designe UI;
2. Then, use uic -o head.h designe.ui to create ui_header.h file;
3. When use this Ui, First, include head file, then

namespace Ui {
    class Edit: public Ui_Form {};
} // namespace Ui

    QWidget* wgt = new QWidget(this);
    Ui::Edit* it = new Ui::Edit;
    it->setupUi(wgt);