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 ans=1.0;
        for(int i=1;i<=exponent;++i){
            ans*=base;
        }
        return ans;
    
    }
};