继承者： QWindowsStyle , QPlastiqueStyle , QMacStyle , QCleanlooksStyle , QGtkStyle , QMotifStyle , QCDEStyle
PySide.QtGui.QCommonStyle class encapsulates the common Look and Feel of a GUI.
This abstract class implements some of the widget's look and feel that is common to all GUI styles provided and shipped as part of Qt.
Since PySide.QtGui.QCommonStyle 继承 PySide.QtGui.QStyle , all of its functions are fully documented in the PySide.QtGui.QStyle 文档编制。
