Qt布局最简单程序

#include <QTextEdit>

#include <QLabel>

#include <QWidget>

#include <QGridLayout>

class AddressBook : public QWidget

{

    Q_OBJECT

public:

    AddressBook(QWidget *parent = 0);

private:

    QLineEdit *nameLine;

    QTextEdit *addressText;

};

#include "addressbook.h"

AddressBook::AddressBook(QWidget *parent)

    : QWidget(parent)

{

    QLabel *nameLabel = new QLabel(tr("Name:"));

    nameLine = new QLineEdit;

    QLabel *addressLabel = new QLabel(tr("Address:"));

    addressText = new QTextEdit;

    QGridLayout *mainLayout = new QGridLayout;

    mainLayout->addWidget(nameLabel, 0, 0);

    mainLayout->addWidget(nameLine, 0, 1);

    mainLayout->addWidget(addressLabel, 1, 0, Qt::AlignTop);

    mainLayout->addWidget(addressText, 1, 1);

    setLayout(mainLayout);

    setWindowTitle(tr("Simple Address Book V1"));

}