# 作者：hhh5460
# 時(shí)間：2017.07.18
class A(object):
  def show_x(self):
    print('A')
class B(object):
  def show_y(self):
    print('B')
class C(object):
  def show_z(self):
    print('C')
class D(A, B, C):
  pass
# 測(cè)試
if __name__ == '__main__':
  d = D()
  d.show_x() # A
  d.show_y() # B
  d.show_z() # C

# 作者：hhh5460
# 時(shí)間：2017.07.18
class A(object):
  def __init__(self, x=0):
    self._x = x
  def show_x(self):
    print(self._x)
  def show_name(self):
    print('A')
class B(object):
  def __init__(self, y=0):
    self._y = y
  def show_y(self):
    print(self._y)
  def show_name(self):
    print('B')
class C(object):
  def __init__(self, z=0):
    self._z = z
  def show_z(self):
    print(self._z)
  def show_name(self):
    print('C')
# 注意下面兩類D、E，都是繼承A、B、C，且A類的優(yōu)先級(jí)最高。但是三條__init__語(yǔ)句的順序是相反的
class D(A, B, C):
  def __init__(self, x=0, y=0, z=0):
    C.__init__(self, z) # init C
    B.__init__(self, y) # init B
    A.__init__(self, x) # init A （A最優(yōu)先）
class E(A, B, C):
  def __init__(self, x=0, y=0, z=0):
    super(E, self).__init__(x) # init A （A最優(yōu)先） # 此句可簡(jiǎn)寫(xiě)成：super().__init__(x)
    super(A, self).__init__(y) # init B
    super(B, self).__init__(z) # init C
# 測(cè)試
if __name__ == '__main__':
  d = D(1,2,3)
  d.show_x()  # 1
  d.show_y()  # 2
  d.show_z()  # 3
  d.show_name() # A
  e = E(1,2,3)
  e.show_x()  # 1
  e.show_y()  # 2
  e.show_z()  # 3
  e.show_name() # A