x
a = {"apple", "banana", "cherry"}b = {"google", "microsoft", "apple"}c = {"cherry", "micra", "bluebird"}myset = a - b - cprint(myset){'香蕉'}
a = {"apple", "banana", "cherry"}b = {"google", "microsoft", "apple"}c = {"cherry", "micra", "bluebird"}myset = a - b - cprint(myset)