>>> mv_list1 = ["⻄红柿⾸富","银河护卫队","⾦刚狼","银河补习班","叶问","狮⼦王","钢铁侠"]
>>> mv_list2=mv_list1[2:5]
>>> print(mv_list2)
['⾦刚狼', '银河补习班', '叶问']
>>> new_mv=input("请输入您喜欢的一部电影:")
请输入您喜欢的一部电影:飘
>>> mv_list2=str(mv_list2).replace("叶问",new_mv)
>>> print(mv_list2)
['⾦刚狼', '银河补习班', '飘']