Python交集有什么作用？
本文教程操作环境：windows7系统、Python 3.9.1，DELL G3电脑。
以属于A且属于B的元素为元素的集合成为A与B的交集。
1、概念
交集就是求两个集合共有的元素。
my_set1={"apple","orange","pear","banana","food"}
my_set2={"apple","orange","pear"}
both=my_set1&my_set2
print(both)
my_set1={"apple","orange","pear","banana","food"}
my_set2={"apple","orange","pear"}
both=my_set1&my_set2
print(both)
my_set1={"apple","orange","pear","banana","food"}
my_set2={"apple","orange","pear"}
both=my_set1&my_set2
print(both)
2、实例
除了通过 & 符号以外，还可以通过集合的 intersection 方法完成。
my_set1={"apple","orange","pear","banana","food"}
my_set2={"apple","orange","pear"}
both=my_set1.intersection(my_set2)
print(both)
my_set1={"apple","orange","pear","banana","food"}
my_set2={"apple","orange","pear"}
both=my_set1.intersection(my_set2)
print(both)
my_set1={"apple","orange","pear","banana","food"}
my_set2={"apple","orange","pear"}
both=my_set1.intersection(my_set2)
print(both)
以上就是Python交集的作用介绍，希望能对大家有所帮助。更多Python学习指路:python基础教程
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