Python 中class的小例子

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class Song():     def __init__(self,lyrics):         self.lyrics=lyrics               def sing_a_song(self):         for line in self.lyrics:             print(line)                                       happy=Song(["Happy birthday to you",              "Happy birthday to you"])                         happy.sing_a_song()

　

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class Song(object):     def __init__(self):         self.tang="lyrics"               def sing(self):         print("I wanna sing a song")                         thing=Song() thing.sing() print(thing.tang)