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- class Turtle:
- def _init_(self, x):
- self.num = x
- class Fish:
- def _init_(self, x):
- self.num = x
- class Pool:
- def _init_(self, x, y):
- self.turtle = Turtle(x)
- self.fish = Fish(y)
-
- def print_num(self):
- print("水池里总共有乌龟 %d 只,小鱼 %d 条!" % (self.turtle.num, self.fish.num))
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小甲鱼视频上抄的,报错语法错误?
和版本没关系 3.7也正常运行
- class Turtle:
- def __init__(self, x):
- self.num = x
- class Fish:
- def __init__(self, x):
- self.num = x
- class Pool:
- def __init__(self, x, y):
- self.turtle = Turtle(x)
- self.fish = Fish(y)
-
- def print_num(self):
- print("水池里总共有乌龟 %d 只,小鱼 %d 条!" % (self.turtle.num, self.fish.num))
- a=Pool(5,9)
- a.print_num()
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