Qt初级-Qt继承表

QObject--QCoreApplication---QApplication

               --QWidget------------QAbstractButton---- QPushButton

                                                                                ------QCheckBox

                                  ------------QAbstractSpinBox---QSpinBox

                                  ------------QAbstractSlider------QSlider

                                  ------------QFrame---------------QLabel

                                                                    --------------QAbstractItemView----QTableView

                                                                                                                                      ----QTableWiget

                                                                                                                             --QHeaderView  

                                     ---QComboBox

                                    --QLineEdit

                                    --QMainWindow

                                    --QGroupBox

                                    --QDialogButtonBox

                                    --QMenu

                                    --QMenuBar

                                    --QStatusBar

                                    --QTabBar

                                    --QToolBar

                                    --QDialog--QMessageBox 

                                                                                                                                                                                                           

                -QLayout-- -QBoxLayout----------QHBoxLayout

                                                         -----------QVBoxLayout

                                - ---QGridLayout

                --QAction

                --QClipboard

                --QSetings

                --QShortCut

                --QIODevice--QFile

QString

QVariant

QList---QStringList