java 代码

class Solution {
    public double Power(double base, int exponent) { 
        if(base == 0 && exponent == 0){
            return 0;
        }
        double result = 1;
        int temp = exponent;
        if(exponent<0){
            exponent = -exponent;
        }
        for(int i=1;i<=exponent;i++){
            result = result * base;
        }
        return temp>=0?result:1/result;
  }
}