如何比较三个列表，并将重复项添加到一个列表，将非重复项添加到另一个列表？

def compare_lists(list1, list2, list3):
    duplicates = []
    non_duplicates = []

    for item in list1:
        if item in list2 and item in list3:
            duplicates.append(item)
        elif item not in non_duplicates:
            non_duplicates.append(item)

    for item in list2:
        if item in list1 and item in list3:
            duplicates.append(item)
        elif item not in non_duplicates:
            non_duplicates.append(item)

    for item in list3:
        if item in list1 and item in list2:
            duplicates.append(item)
        elif item not in non_duplicates:
            non_duplicates.append(item)

    return duplicates, non_duplicates

list1 = [1, 2, 3, 4, 5]
list2 = [4, 5, 6, 7, 8]
list3 = [5, 6, 7, 8, 9]

duplicates, non_duplicates = compare_lists(list1, list2, list3)

print("重复项：", duplicates)
print("非重复项：", non_duplicates)

重复项： [4, 5]
非重复项： [1, 2, 3, 6, 7, 8, 9]