class继承

class  Lz(object):
    def __init__(self):
        self.money=1000000000000
        self.house='大别野'
    def sing(self):
        print('唱歌')
    def dance(self):
        print('跳广场舞')
    def lm(self):
        print('找朋友')
class Zlz(Lz):
    def dance(self):#重写了父类的方法，那么已当前的为准
        print('霹雳舞')
class Base(object):
    def __init__(self,host,port,password):
        self.host=host,
        self.port=port,
        self.password=password
class MySql(Base):
    pass
class Redis(Base):
    pass

zx=Zlz()
zx.sing()#可以直接调用父类的方法
zx.dance()
print(zx.money)