组合布局

你可以通过主布局中的其他 QWidgets 组合多个布局来执行更具体的效果，例如信息字段：例如：

#include <QApplication>

#include <QMainWindow>
#include <QWidget>
#include <QVBoxLayout>
#include <QPushButton>
#include <QLabel>
#include <QLineEdit>
#include <QGroupBox>

#include <QTextEdit>

int main(int argc, char *argv[])
{
    QApplication a(argc, argv);

    QMainWindow window;
    QWidget *widget = new QWidget(&window);
    QVBoxLayout *layout = new QVBoxLayout(widget);

    window.setCentralWidget(widget);
    widget->setLayout(layout);

    QGroupBox *box = new QGroupBox("Information:", widget);
    QVBoxLayout *boxLayout = new QVBoxLayout(box);

    layout->addWidget(box);

    QWidget* nameWidget = new QWidget(box);
    QWidget* ageWidget = new QWidget(box);
    QWidget* addressWidget = new QWidget(box);

    boxLayout->addWidget(nameWidget);
    boxLayout->addWidget(ageWidget);
    boxLayout->addWidget(addressWidget);

    QHBoxLayout *nameLayout = new QHBoxLayout(nameWidget);
    nameLayout->addWidget(new QLabel("Name:"));
    nameLayout->addWidget(new QLineEdit(nameWidget));

    QHBoxLayout *ageLayout = new QHBoxLayout(ageWidget);
    ageLayout->addWidget(new QLabel("Age:"));
    ageLayout->addWidget(new QLineEdit(ageWidget));

    QHBoxLayout *addressLayout = new QHBoxLayout(addressWidget);
    addressLayout->addWidget(new QLabel("Address:"));
    addressLayout->addWidget(new QLineEdit(addressWidget));

    QWidget* validateWidget = new QWidget(widget);
    QHBoxLayout *validateLayout = new QHBoxLayout(validateWidget);
    validateLayout->addWidget(new QPushButton("Validate", validateWidget));
    validateLayout->addWidget(new QPushButton("Reset", validateWidget));
    validateLayout->addWidget(new QPushButton("Cancel", validateWidget));

    layout->addWidget(validateWidget);

    window.show();

    return a.exec();
}

将输出：