def __init__(self,font=QtGui.QFont('Consolas',11) ,parent=None):
BaseDocument.__init__(self, font, parent)
# 用户操作记录
self.__operateCache = OperateCache()
self.operateCache = lambda : self.__operateCache
def setText(self, text=''):
BaseDocument.setText(self, text=text)
self.totalLevelTextChangedSignal.emit(None)