直接上代码了,不解释,很简单的,主要考虑边界值问题
public class Solution { public double Power(double base, int exponent) { boolean isFlag = false; if(exponent == 0) return 1; if(exponent == 1) return base; if(exponent<0) { exponent = -exponent; isFlag = true; } double total =1 ; int i = 1; for( ; i <= exponent ; i++){ total = total * base; } if(isFlag){ return 1.0/total; } else { return total; } } }
时间: 2024-08-10 03:01:00