题解 | #数值的整数次方#

这是中等难度吗.,,,

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