import?math
def?quadratic_equation(a,?b,?c):
????t?=?b?*?b?-?4?*?a?*?c
????if?a?==?0:
????????x1?=?-c?/?b
????????return?x1
????elif?t<0:
????????return?'none'
????elif?t?>=?0:
????????x2?=?(-b?/?(2?*?a))?+?math.sqrt(t?/?(4?*?a?*?a))
????????x3?=?(-b?/?(2?*?a))?-?math.sqrt(t?/?(4?*?a?*?a))
????????return?x2,?x3
print?quadratic_equation(2,?3,?0)
print?quadratic_equation(1,?-6,?5)
同樣的程序，為什么在慕課網(wǎng)的練習(xí)里和Python3里運(yùn)行結(jié)果不一樣
一笑風(fēng)云過(guò)丶
2017-06-13 17:24:16
