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(["They rally around the family",
"With pockets full of shells"])
happy_bday.sing_me_a_song()
bulls_on_parade.sing_me_a_song()
运行结果：
Traceback (most recent call last):
File "C:\Users\86155\temp\ex40.py", line 10, in <module>
happy_bday = Song(["Happy birthday to you",
TypeError: Song() takes no arguments
为什么会这样？
__init__ 两个下划线
def _init_(self, lyrics) 改成 def __init__(self, lyrics) 两个下划线