摘要: 复习 # str # upper lower # startswith endswith # s = 'Python世界' # print(s.upper()) # print(s.lower()) # print(s.startswith('P')) # print(s.endswith('界') 阅读全文
posted @ 2020-06-24 20:41 ET-珩 阅读(84) 评论(0) 推荐(0)