python编程,求大神,在线等,急答:按照题目要求编写的Python程序如下 class Grade(object):def __init__(self,grade):self.grade=grade class Class(object):def __init__(self,bclass):self.bclass=bclass class Teacher(Grade,Class):def __init__(self,grade,bclass,subject,name):Grade.__init__(self,grade)Class.__init...