ex40模块类和对象

class Song(object):

def __init__(self,lyrics):
self.lyrics = lyrics

def sing_me_a_song(self):
for line in self.lyrics:
print(line)

happy_bday = Song(["Happy birthday to you",
"I don't want to get sued",
"So,I'll stop right there"])

bulls_on_parade = Song(["There rally around the family",
"With pockets full of shells"])

happy_bday.sing_me_a_song()
bulls_on_parade.sing_me_a_song()