Python集合的交集、并集、差集

1、打开Python开发工具IDLE,新建‘衡痕贤伎set.py’文件，并写代码如下：set1 = {1,2,3,8,9}set2 = {2,4,5荑樊综鲶,6,8}set3 = set1&set2print (set3)&取两个集合都有的

3、改写代码，测试集合的并集，代码如下：set1 = {1,2,3,8,9}set2 = {2,4,5,6,8}set3 = set1|set2print (set3)

5、继续写集合中的差集，差集分为一般差集和对称差集，代码如下：一般差集set1 = 辘腋粪梯{1,2,3,8,9}set2 = {2,4,5,6,8}set3 = set1-set2取set1有的set2没有的对称差集set4 = set1^set2set1或set2有，但不是都有