Python的类定义及初始化

''' Python的类定义及初始化'''
class Song(object):

    def __init__(self,lyrics):#这里类初始化函数需要四个下划线__init__
        self.lyrics = lyrics

    def sing_me_a_song(self):
        for line in self.lyrics:
            print(line)
'''类也是以缩进为单位，比如上面就是class Song的定义，下面就是主函数体了，用缩进来分割'''
happy_bday = Song(["Happy birthday to you",
                    "I don't want to get sued",
                    "So I'll stop right there."])

bulls_on_parade = Song(["They rally around the family",
                        "With pockets full of shells"])
print('\n')
happy_bday.sing_me_a_song()
print('\n')
bulls_on_parade.sing_me_a_song()

使用WindowsPowershell运行结果：