题解 | #参数解析#

import re
import shlex
while True:
    try:
        strings = input()
        lex = shlex.shlex(strings)
        lex.quotes = '"'
        lex.whitespace_split = True
        result_list = list(lex)
        print(len(result_list))
        for result in result_list:
            print(result.strip('"'))
    except:
        break