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  1. # import math
  2.  
  3. def quadratic(a, b, c):
  4. pass
  5.  
  6. # 测试:
  7. print('quadratic(2, 3, 1) =', quadratic(2, 3, 1))
  8. print('quadratic(1, 3, -4) =', quadratic(1, 3, -4))
  9.  
  10. if quadratic(2, 3, 1) != (-0.5, -1.0):
  11. print('测试失败')
  12. elif quadratic(1, 3, -4) != (1.0, -4.0):
  13. print('测试失败')
  14. else:
  15. print('测试成功')
  16.  
Success #stdin #stdout 0.07s 14128KB
stdin
Standard input is empty
stdout
quadratic(2, 3, 1) = None
quadratic(1, 3, -4) = None
测试失败