PYTHON之路(三)
摘要:
set是一个无序且不重复的元素集合addclearcopydifferencedifference_updatediscardintersectionintersection_updateisdisjointisdubsetissupersetpopremovesymmetric_differenc 阅读全文
posted @ 2016-02-01 19:23 251744647 阅读(196) 评论(0) 推荐(0) 编辑