题目描述

blablabla

样例

blablabla

class Solution(object):
    def Power(self, base, exponent):
        """
        :type base: float
        :type exponent: int
        :rtype: float
        """
        if base == 0:
            return 

        if exponent == 0:
            return 1

        if exponent < 0:
            return 1 / base * self.Power(base, exponent + 1)

        if exponent > 0:
            return base * self.Power(base, exponent - 1)