# python 使用set对列表去重，并保持列表原来顺序

list1 = ['cc', 'bbbb', 'afa', 'sss', 'bbbb', 'cc', 'shafa']

for item in list1:

    print('word: %6s  index: %2s' % (item, list1.index(item)))

print('==========================')

list2 = list(set(list1))

list2.sort(key=list1.index)

print(list1)

print(list2)

　　运行结果：

def non_repeat_sort(list1):

    list2 = sorted(list(set(list1)), key=lambda e: list1.index(e), reverse=False)

    return list2

def join_list_non_repeat_sort(list1, list2):

    list3 = list1 + list2

    list4 = non_repeat_sort(list3)

    return list4

if __name__ == '__main__':

    list1 = ['a', 'b', 'c', 'a', 'c', 'c']

    list2 = ['c', 'a', 'e', 'f', 'e', 'e']

    print('list1: %s ' % list1)

    print('list2: %s ' % list2)

    list11 = non_repeat_sort(list1)

    list22 = non_repeat_sort(list2)

    print('list11: %s ' % list11)

    print('list22: %s ' % list22)

    result_list = join_list_non_repeat_sort(list1, list2)

    # result_list = join_list_non_repeat_sort(list11, list22)

    print('result_list: %s ' % result_list)