Python 简明教程
Python - Set Exercises
Python Set Exercise 1
使用集合运算查找两个列表中共同元素的 Python 程序:
Python program to find common elements in two lists with the help of set operations −
l1=[1,2,3,4,5]
l2=[4,5,6,7,8]
s1=set(l1)
s2=set(l2)
commons = s1&s2 # or s1.intersection(s2)
commonlist = list(commons)
print (commonlist)
它将生成以下 output −
It will produce the following output −
[4, 5]
Python Set Exercise 2
检查一个集合是否是另一个集合子集的 Python 程序:
Python program to check if a set is a subset of another −
s1={1,2,3,4,5}
s2={4,5}
if s2.issubset(s1):
print ("s2 is a subset of s1")
else:
print ("s2 is not a subset of s1")
它将生成以下 output −
It will produce the following output −
s2 is a subset of s1