python-集合基础

#set 集合

#初始化

# set1 = {1,'ww',2,3}

# print(set1)

#并集 union

# set1 = {1,'w',2,4,5,6}

# set2 = {'hah'}

# set3 = set1.union(set2)

# print(set3)

#差集 difference

# set1 = {1,'w',2,4,5,6}

# set2 = {1,'235',2,89,5,6}

# set3 = set1.difference(set2)

# print(set3)

# print(set1.difference(set2))

#交集 intersection

# set1 = {1,'w',2,4,5,6}

# set2 = {1,'235',2,89,5,6}

# set3 = set1.intersection(set2)

# print(set3)

#添加add

# set1 = {1,'w',2,4,5,6}

# set2 = {1,'235',2,89,5,6}

# set1.add("!@#")

# print(set1)

#删除 discard

# set1 = {1,'w',2,4,5,6}

# set2 = {1,'235',2,89,5,6}

# set2.discard(1)

# print(set2)

#清除clear

# set2 = {1,'235',2,89,5,6}

# set2.clear()

# print(set2)