题解 | #数值的整数次方#

import java.util.*;
public class Solution {
    public double Power(double base, int exponent) {
        double product=1;
        int record=Math.abs(exponent);
        if(exponent<0){
            for(int j=1;j<=record;j++){
                product/=base;
            }
        }
        else if(exponent>0){
        for(int i=1;i<=record;i++){
            product*=base;
        }}
        else{
            return 1;
        }
        return product;
  }
}