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  1. def triangles():
  2.     row = [1]
  3.     while True:
  4.         yield row
  5.         row = [1] + [row[i] + row[i + 1] for i in range(len(row) - 1)] + [1]
  6.  
  7.  
  8.  
  9. # 期待输出:
  10. # [1]
  11. # [1, 1]
  12. # [1, 2, 1]
  13. # [1, 3, 3, 1]
  14. # [1, 4, 6, 4, 1]
  15. # [1, 5, 10, 10, 5, 1]
  16. # [1, 6, 15, 20, 15, 6, 1]
  17. # [1, 7, 21, 35, 35, 21, 7, 1]
  18. # [1, 8, 28, 56, 70, 56, 28, 8, 1]
  19. # [1, 9, 36, 84, 126, 126, 84, 36, 9, 1]
  20. n = 0
  21. results = []
  22. for t in triangles():
  23.     results.append(t)
  24.     n = n + 1
  25.     if n == 10:
  26.         break
  27.  
  28. for t in results:
  29.     print(t)
  30.  
  31. if results == [
  32.     [1],
  33.     [1, 1],
  34.     [1, 2, 1],
  35.     [1, 3, 3, 1],
  36.     [1, 4, 6, 4, 1],
  37.     [1, 5, 10, 10, 5, 1],
  38.     [1, 6, 15, 20, 15, 6, 1],
  39.     [1, 7, 21, 35, 35, 21, 7, 1],
  40.     [1, 8, 28, 56, 70, 56, 28, 8, 1],
  41.     [1, 9, 36, 84, 126, 126, 84, 36, 9, 1]
  42. ]:
  43.     print('测试通过!')
  44. else:
  45.     print('测试失败!')
  46.  
Success #stdin #stdout 0.13s 14100KB
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stdin
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Standard input is empty
stdout
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[1]
[1, 1]
[1, 2, 1]
[1, 3, 3, 1]
[1, 4, 6, 4, 1]
[1, 5, 10, 10, 5, 1]
[1, 6, 15, 20, 15, 6, 1]
[1, 7, 21, 35, 35, 21, 7, 1]
[1, 8, 28, 56, 70, 56, 28, 8, 1]
[1, 9, 36, 84, 126, 126, 84, 36, 9, 1]
测试通过!
https://ideone.com/D1I695
language:
Python 3 (python  3.12)
created:
3 days ago
visibility:
public

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