编写一个函数，输入n为偶数时，调用方法求1/2+1/4+...+1/n,当输入n为奇数时，调用函数1/1+1/3+...+1/n

package com.Summer_0511.cn;

import java.util.Scanner;

public class Test03 {

    public static void main(String[] args) {
        Scanner sc = new Scanner(System.in);
        System.out.println("请输入一个数字");
        double num = sc.nextDouble();
        double sum = 0;
        if (num%2==0) {
            for (int i = 2; i <=num; i=i+2) {
                sum = sum+(1.0/i);//因为i为整数
            }
            System.out.println("输入的偶数运算和为"+sum);
        } else {
            for (int i = 1; i <=num; i=i+2) {
                sum = sum+(1.0/i);
            }
            System.out.println("输入的奇数运算和为"+sum);
        }
    }
}