//使用substring 进行截取字符串 import java.util.Scanner; public class Main { public static void main(String[] args) { Scanner in = new Scanner(System.in); String no = in.nextLine(); //生日 System.out.println("year="+no.substring(0,4)); System.out.println("month="+no.substring(4,6)); System.out.println("date="+no.substring(6,8)); } }