题解 | #坐标移动#

import java.util.Scanner;

// 注意类名必须为 Main, 不要有任何 package xxx 信息
public class Main {
    public static void main(String[] args) {
        Scanner in = new Scanner(System.in);
        String line = in.nextLine();
        String[] lines = line.split(";");
        int a =0,b=0;
        for(int i=0;i<lines.length;i++){
            String ops = lines[i];
            if(ops == null || ops.equals("")){
                continue;
            }
            char option = ops.charAt(0);
            String nums = ops.substring(1);
            int step=0;
            try{
                step = Integer.parseInt(nums);
            }catch(NumberFormatException e){
                continue;
            }
            switch(option){
                case 'A':
                    a-=step;
                    break;
                case 'D':
                    a+=step;
                    break;
                case 'W':
                    b+=step;
                    break;
                case 'S':
                    b-=step;
                    break;
            }
        }
        System.out.print(a+","+b);
    }
}