python集合的差集
时间: 2023-10-18 16:32:11 浏览: 42
在Python中,可以使用set.difference()方法或-运算符来计算两个集合的差集。差集操作返回从第一个集合中移除与第二个集合共有的元素后剩余的元素集合。例如:
set1 = {1, 2, 3, 4}
set2 = {3, 4, 5, 6}
使用difference()方法计算差集:
difference = set1.difference(set2)
print(difference)
输出: {1, 2}
使用-运算符计算差集:
difference = set1 - set2
print(difference)
输出: {1, 2}
通过上述代码示例,可以看到set.difference()和-运算符都可以用来计算两个集合的差集,得到剩余的元素集合。<span class="em">1</span><span class="em">2</span><span class="em">3</span>
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