说明：  指针式时钟QT-C++QPushButton 按钮类QButtonGroup 按钮组合类QGroupBox 群组类QDateTimeEdit 日期时间编辑框类QLineEdit 行编辑框类QTextEdit 文本编辑框类QComboBox 组合框类QProgressBar 进度条类QLCDNumber 数字显示框类
(Pointer clock QT-C++ QPushButton button type QButtonGroup button combinations category QGroupBox group category QDateTimeEdit Date Time edit box type QLineEdit line text edit box type QTextEdit edit box-type combo box QComboBox category QProgressBar progress bar category QLCDNumber figures show that the box-type)