原创 python集合的操作
集合的兩大特性：一、去重二、關係測試1、去重效果>>> l1 = ["張三","李四","王五","張三"]>>> print(type(l1)) //查看類型<class 'list'> >>> l1 =
2018-09-12 02:54:07
2
2018-09-12 02:54:07
2
集合的兩大特性：一、去重二、關係測試1、去重效果>>> l1 = ["張三","李四","王五","張三"]>>> print(type(l1)) //查看類型<class 'list'> >>> l1 =
2018-09-12 02:54:07
2