python编写一个程序 可用命令行参数接受用户输入的字符串列表 列出列表中不重复的字符串与数量

Question

py your right brain has nothing left and your left brain has nothing right
有7个不重复的字符串{left has your right nothing brain and}

Answer 1

import sys
s = set()
for i in sys.argv[1:]:
    s.add(i)
for i in s:
    print(i)

Answer 2

import sys
words = set(sys.argv[1:])
print('有 {} 个不重复字符串：{}'.format(len(words), words))