extend()可以添加任何可迭代对象(元组,集合,字典等)。将元组的元素添加到列表中:list1 = ["apple", "banana", "cherry"]tuple1 = ("kiwi", "orange")list1.extend(tuple1)print(list1)执行结果:['apple', 'banana', 'cherry', 'kiwi', 'orange']