题解 | #求平均数#
求平均数
https://www.nowcoder.com/practice/41e59cee1221424bb9291435aae79ae9
import java.util.Scanner; public class Main { public static void main(String[] args) { Scanner scan = new Scanner(System.in); double sum =0.0; int count =0; while (true){ int num = scan.nextInt(); if (num <0){ break; }else if (num >0 && num <= 10000){ sum += num; count++; } } if(count >0 ){ double av = sum / count; System.out.printf("%.2f", av); } //write your code here...... scan.close(); //输出格式为:System.out.println(String.format("%.2f",avg)); } }