题解 | #数值的整数次方#

class Solution {
public:
    double Power(double base, int exponent) {
        if(exponent<0){
            base=1/base;
            exponent=-exponent;
        }
        double fin=1.0;
        for(int i=0;i<exponent;i++){
            fin=fin*base;
        }
        return fin;
    }
};