list_1 = ['apple', 'banana', 'orange']
list_2 = ['banana', 'kiwi', 'pear', 'apple']

for item in list_1:
    if item in list_2:
        print(f'{item} is in both lists.')
    else:
        print(f'{item} is not in the second list.')

输出：

apple is in both lists.
banana is in both lists.
orange is not in the second list.

另一种方法：

list_1 = ['apple', 'banana', 'orange']
list_2 = ['banana', 'kiwi', 'pear', 'apple']

matches = set(list_1) & set(list_2)
non_matches = set(list_1) - set(list_2)

print(f'Matches: {matches}')
print(f'Non-matches: {non_matches}')

输出：

Matches: {'apple', 'banana'}
Non-matches: {'orange'}