如何从字典创建类对象

def create_class_from_dict(class_name, class_dict):
    # 定义一个空的类
    new_class = type(class_name, (), {})
    
    # 遍历字典，将属性名和属性值添加到类对象中
    for key, value in class_dict.items():
        setattr(new_class, key, value)
    
    return new_class

# 示例字典
person_dict = {
    'name': 'John',
    'age': 30,
    'gender': 'male'
}

# 创建类对象
Person = create_class_from_dict('Person', person_dict)

# 使用类对象
person = Person()
print(person.name)  # 输出: John
print(person.age)  # 输出: 30
print(person.gender)  # 输出: male