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); //write your code here...... //输出格式为:System.out.println(String.format("%.2f",avg)); int sum =0; double count =0; while(true){ int input = scan.nextInt(); if(input<0){ break; } sum += input; count++; } double avg = sum/count; System.out.println(String.format("%.2f",avg)); } }