根据dataframe中的值从字典中删除嵌套的键值对

def delete_nested_key_value(dataframe, dictionary):
    for key, value in dictionary.items():
        if isinstance(value, dict):
            delete_nested_key_value(dataframe, value)
        elif value in dataframe.values:
            del dictionary[key]

# 示例用法
dataframe = pd.DataFrame({'A': [1, 2, 3], 'B': [4, 5, 6]})
dictionary = {'A': {'B': 4, 'C': 7}, 'D': {'E': 2, 'F': 5}}
delete_nested_key_value(dataframe, dictionary)
print(dictionary)