从字典值中删除外部列表

def remove_values_from_dict(dictionary, values_to_remove):
    for key, value in dictionary.items():
        dictionary[key] = [v for v in value if v not in values_to_remove]

# 示例用法
my_dict = {'a': [1, 2, 3], 'b': [4, 5, 6], 'c': [7, 8, 9]}
external_list = [2, 5, 8]

remove_values_from_dict(my_dict, external_list)
print(my_dict)

{'a': [1, 3], 'b': [4, 6], 'c': [7, 9]}