比较两个字典列表，并在标识公共关键字时添加关键字、值

def compare_dicts(dict_list1, dict_list2):
    common_keywords = {}  # 存储公共关键字及其值的字典

    for dict1 in dict_list1:
        for dict2 in dict_list2:
            for key in dict1.keys():
                if key in dict2.keys():
                    common_keywords[key] = dict1[key]

    return common_keywords

dict_list1 = [{'name': 'Alice', 'age': 25}, {'name': 'Bob', 'age': 30}]
dict_list2 = [{'name': 'Alice', 'city': 'New York'}, {'name': 'Bob', 'city': 'San Francisco'}]

result = compare_dicts(dict_list1, dict_list2)
print(result)

{'name': 'Alice', 'name': 'Bob'}