如何在python中组合(附加值)两个具有相同键的嵌套字典？

def combine_nested_dicts(dict1, dict2):
    for key, value in dict2.items():
        if key in dict1 and isinstance(dict1[key], dict) and isinstance(value, dict):
            combine_nested_dicts(dict1[key], value)
        else:
            dict1[key] = value

# 示例数据
dict1 = {
    'key1': {
        'subkey1': 'value1',
        'subkey2': 'value2'
    },
    'key2': {
        'subkey3': 'value3',
        'subkey4': 'value4'
    }
}

dict2 = {
    'key1': {
        'subkey1': 'new_value1',
        'subkey3': 'value3'
    },
    'key3': {
        'subkey5': 'value5',
        'subkey6': 'value6'
    }
}

# 组合两个嵌套字典
combine_nested_dicts(dict1, dict2)

# 打印结果
print(dict1)

{
    'key1': {
        'subkey1': 'new_value1',
        'subkey2': 'value2',
        'subkey3': 'value3'
    },
    'key2': {
        'subkey3': 'value3',
        'subkey4': 'value4'
    },
    'key3': {
        'subkey5': 'value5',
        'subkey6': 'value6'
    }
}