[已解决]python如何用集合来定义自然数系统

L1ve

求解！！！

最佳答案

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tommyyu

2022-11-28 15:33:15

1. sets = ('{}', )
   
2. def get_set(x):
   
3.     the_set = '{'
   
4.     for i in range(0, x): the_set += (sets[i] + ',')
   
5.     the_set = the_set[:len(the_set)-1] + '}'
   
6.     return the_set
   
7. x = int(input())
   
8. for i in range(1, x+1): sets += (get_set(i), )
   
9. print(sets[x])
   

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L1ve

我是个笨比，求解！！！

tommyyu

1. sets = ('{}', )
   
2. def get_set(x):
   
3.     the_set = '{'
   
4.     for i in range(0, x): the_set += (sets[i] + ',')
   
5.     the_set = the_set[:len(the_set)-1] + '}'
   
6.     return the_set
   
7. x = int(input())
   
8. for i in range(1, x+1): sets += (get_set(i), )
   
9. print(sets[x])
   

复制代码

L1ve

tommyyu 发表于 2022-11-28 15:33

太感谢了！！！