统一将时间转化为分钟
import java.util.Scanner; public class Main { public static void main(String[] args) { Scanner sc = new Scanner(System.in); int a = sc.nextInt(); int b = sc.nextInt(); int c = sc.nextInt(); int d = sc.nextInt(); int res = (c * 60 + d) - (a * 60 + b); System.out.println(res); } }