题解 | #添加逗号#
添加逗号
http://www.nowcoder.com/practice/f51c317e745649c0900996fd3f683aed
import java.util.Scanner;
// printf有自动的分割
public class Main {
public static void main(String[] args) {
Scanner sc = new Scanner(System.in);
long num = sc.nextLong();
System.out.printf("%,d", num);
}
}