题解 | #参数解析#

import java.util.*; public class Main{

public static void main(String[] args){
    Scanner sc = new Scanner(System.in);
   
    String value = sc.nextLine();
    char[] chars = value.toCharArray();
    StringBuilder sbd = new StringBuilder("");
    int yinCount = 0;
    for(int i=0;i<chars.length;i++){
        char c = chars[i];
        if(c !='\"'){//字符不是双引号
            if(yinCount%2 == 1){//奇数个双引号，里面的空格用<##>替换
                if(c==' '){
                   sbd.append("<##>"); 
                }else{
                    sbd.append(c+"");
                }
            }else{//偶数个双引号，里面的空格直接加
                sbd.append(c+"");
            }
        }else{//字符是双引号
            yinCount++;
        }          
    }
    String str = sbd.toString();
    String[] strs = str.split(" ");
     System.out.println(strs.length); 
    for(String s:strs){
        System.out.println(s.replaceAll("<##>"," ")); 
    }
 //   System.out.println();   
}

}