题解 | #参数解析#

// mark一下啊

import java.util.*;

public class Main {
    public static void main(String[] args) {
        Scanner in = new Scanner(System.in);
        while (in.hasNextLine()) {
            String s = in.nextLine();
            int length = s.length();
            boolean flag = false;
            StringBuilder sb = new StringBuilder();
            List<String> list = new ArrayList<>();
            for (int i = 0; i < length; i++) {
                char c = s.charAt(i);
                // 非""内的空格 就是命令分隔符
                if (c == ' ' && !flag) {
                    list.add(sb.toString());
                    sb = new StringBuilder();
                } else if (c == '"') {
                    // 成对地消除引号
                    flag = flag ? false : true;
                    // 引号不会输出
                    continue;
                } else {
                    // 命令中的字符
                    sb.append(c);
                }
            }
            list.add(sb.toString());
            
            int size = list.size();
            System.out.println(size);
            for (String eachStr : list) {
                System.out.println(eachStr);
            }
        }
    }
}