day14 Python集合的补充

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']