[已解决]书上第11章，11.6 组合

python爱好者.

1. class Turtle:
   
2.     def __init__(self, x):
   
3.         self.num = x
   
4. class Fish:
   
5.     def __init__(self, x):
   
6.         self.num = x
   
7. class Pool:
   
8.     def __init__(self, x, y):
   
9.         self.turtle = Turtle(x)
   
10.         self.fish = Fish(y)
    
11.         
    
12.     def print_num(self):
    
13.         print('水池里共有乌龟 %d 只，小鱼 %d 条' % (self.turtle, self.fish)) #改了这里，你这里缩进不对！
    
14.    
    
15. pool = Pool(1, 10)
    
16. pool.print_num()
    

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