如何将字典和单个项的列表展平为应复制单个项的列表

def flatten_dict_list(dictionary, item_list):
    flattened_list = []
    for key, value in dictionary.items():
        for item in item_list:
            flattened_list.append({**item, key: value})
    return flattened_list

# 示例输入
dictionary = {'A': 1, 'B': 2, 'C': 3}
item_list = [{'X': 10}, {'Y': 20}, {'Z': 30}]

# 调用函数展平列表
result = flatten_dict_list(dictionary, item_list)

# 输出结果
print(result)

[{'X': 10, 'A': 1}, {'Y': 20, 'A': 1}, {'Z': 30, 'A': 1}, {'X': 10, 'B': 2}, {'Y': 20, 'B': 2}, {'Z': 30, 'B': 2}, {'X': 10, 'C': 3}, {'Y': 20, 'C': 3}, {'Z': 30, 'C': 3}]