python_1 = ['charon','pluto','ran','charon']linux_1 = ['ran','xuexue','ting']p_s = set(python_1)l_s = set(linux_1)#交叉并集print(p_s.symmetric_difference(l_s))print(p_s^l_s)

set定义的 集合能追加，能删除是可变数据类型

frozenset定义的集合是不可变的

简单去重,但是不可考虑顺序

name = ["charon","charon","pluto"]s = set(name)print(s)name = list(s)print(name)结果:{'pluto', 'charon'}['pluto', 'charon']