摘要: >>> s={'s','s','t'} >>> s {'s', 't'} >>> type(s) >>> >>> s=set([1,2,3,4,5,6,7]) >>> s {1, >>> dir(set()) ['__and__', '__class__', '__contains__', '__delattr__', ' 阅读全文
posted @ 2017-09-17 16:40 明宣 阅读(877) 评论(0) 推荐(0) 编辑