3

//Author:吕志远public class world{ public static void main(String[] args){ double p=3.14,i=5.50; System.out.println(" 圆的面积："+ p*i*i+ "cm2"); System.out.println(" 圆的周长："+ 2*i*p +"cm"); } }

 

转载于:https://www.cnblogs.com/speater/p/7542683.html