如何在python中删除字典中不需要的字符？

def remove_unwanted_chars(dictionary, unwanted_chars):
    for key, value in dictionary.items():
        if isinstance(value, str):
            for char in unwanted_chars:
                value = value.replace(char, "")
            dictionary[key] = value
    return dictionary

my_dict = {
    "name": "John Doe",
    "age": "25",
    "email": "john.doe@example.com"
}

unwanted_chars = ["@", "."]  # 不需要的字符列表

updated_dict = remove_unwanted_chars(my_dict, unwanted_chars)
print(updated_dict)

{'name': 'John Doe', 'age': '25', 'email': 'johndoeexamplecom'}