题解 | #四舍五入#
四舍五入
http://www.nowcoder.com/practice/cae89de6292b4084acb93659353260e0
import java.util.Scanner;
public class Main { public static void main(String[] args) { Scanner scanner = new Scanner(System.in); double d= scanner.nextDouble(); double start=d+0.5; //write your code here...... //实现Math.round函数的实现原理 System.out.println((int)start); } }
查看13道真题和解析