import java.util.Scanner; public class Main { public static void main(String[] args) { Scanner scanner = new Scanner(System.in); String[] arr = scanner.nextLine().split(";"); int x = 0; int y = 0; for (int i = 0; i < arr.length ; i++) { if (arr[i].length()==2 || arr[i].length()==3){ try { if (arr[i].startsWith("A")){ x-=Integer.valueOf(arr[i].substring(1)); }else if (arr[i].startsWith("D")){ x+=Integer.valueOf(arr[i].substring(1)); }else if (arr[i].startsWith("S")){ y-=Integer.valueOf(arr[i].substring(1)); }else if (arr[i].startsWith("W")){ y+=Integer.valueOf(arr[i].substring(1)); } } catch (NumberFormatException e) { continue; } } } System.out.println(x+","+y); } } 可以帮忙看下我这个为什么不通过啊,我自己测试用例是正确的啊