>>> set_test=set('hello') #for 循环,往里放,如果重复了则删掉 >>> set_test {'l', 'o', 'e', 'h'} 改为不可变集合frozenset >>> f_set_test=frozenset(set_test) >>> f_set_test frozenset({'l', 'e', 'h', 'o'}) 2.2.6.2 集合常用操作:关系运算
Write a Python program that performs common set operations like union, intersection, and difference of two frozensets. Sample Solution: Code: defmain():frozenset_x=frozenset([1,2,3,4,5])frozenset_y=frozenset([0,1,3,7,8,10])print("Original frozensets:")print(frozenset_x)...
# Python program to demonstrate sorting by user's# choice# function to return the second element of the# two elements passed as the parameterdefsortSecond(val):returnval[1]# list1 to demonstrate the use of sorting# using using second keylist1 = [(1,2), (3,3), (1,1)]# sorts the...