import math def quadratic_equation(a, b, c): ? ?de=b*b-4*a*c ? ?if a!=0|de>=0: ? ? ? ?x=(-b+math.sqrt(de))/(2*a) ? ? ? ?y=(-b-math.sqrt(de))/(2*a) ? ? ? ?return x,y ? ?else: ? ? ? ?return none print quadratic_equation(2, 3, 0) print quadratic_equation(1, -6, 5) 為什么不通過啊啊