Set Difference (A - B) = {'b', 'a', 'd'} Set Difference (B - A) = {'g', 'f'} In the above example, we have used the difference() method to compute the set differences of two sets A and B. Here, A.difference(B) - returns a set with elements unique to set A B.diff...
myset = a.difference(b, c) print(myset) Try it Yourself » Example Join more than two sets with the-operator: a ={"apple","banana","cherry"} b = {"google","microsoft","apple"} c = {"cherry","micra","bluebird"} myset = a - b - c ...
Return the symmetric difference of two sets as a new set 就是2个集合交叉一下,扣掉两者共有的,剩下的就是 python_1 = ["ggq","ytj","mr","mr","ggq"] linux_1= ["ggq","ytj","sb"] p_s=set(python_1) l_s=set(linux_1)print(p_s,l_s)print(p_s.symmetric_difference(l_s))#...
set() In the above example, we have used symmetric_difference() with two sets A and B. Here, A and B are superset of each other, meaning all the items of A are present in B and vice versa. In this case, the method returns an empty set. Example 3: Symmetric Difference Using ^...
因为set 是一个无序不重复元素集,因此,两个 set 可以做数学意义上的 union(并集), intersection(交集), difference(差集) 等操作。 例子: 代码语言:javascript 代码运行次数:0 运行 AI代码解释 set1=set('hello') set2=set(['p','y','y','h','o','n']) print(set1) print(set2) # 交集 (求...
Python 还包含了一个数据类型 —— set (集合)。集合是一个无序不重复元素的集。基本功能包括关系测试和消除重复元素。集合对象还支持 union(联合),intersection(交),difference(差)和 sysmmetric difference(对称差集)等数学运算。 创建集合set 大括号或 set() 函数可以用来创建集合。
set1.discard(1) AttributeError: 'frozenset' object has no attribute 'discard' >>> 6、difference_update、intersection_update、symmetric_difference_update与difference、intersection、symmetric_difference的区别我们可以知道update()这个内置函数,是对原集合的更新,那么上述三个函数实际上也是对原集合的更新,及将diff...
#在b,不在a# 应用场景之一是:比较两个数据集的特征维度,看看相互之间差在哪里了set(col_name_dataset_b).difference(set(col_name_dataset_a)){'e'} help help(set.difference)Help on method_descriptor:difference(...)Return the difference of twoormore setsasa newset.(i.e.allelements that ...
The difference between these two is that a frozen set is not mutable once it has been created. 换句话说,它是不可变的。 In other words, it’s immutable. 相反,通常的法线集是可变的。 In contrast, your usual, normal set is mutable. 可以将集合视为无序的对象集合。 You can think of a ...
| Return a shallow copy of a set. | | difference(...) | Return the difference of two or more sets as a new set. | | (i.e. all elements that are in this set but not the others.) | | intersection(...) | Return the intersection of two sets as a new set. | | (i.e. ...