如何在python中动态设置类属性？

class MyClass:
    pass

# 创建一个MyClass的实例
my_instance = MyClass()

# 动态设置属性
setattr(my_instance, 'my_attribute', 'some_value')

# 检查属性是否已设置
print(hasattr(my_instance, 'my_attribute'))  # 输出：True
print(my_instance.my_attribute)  # 输出：some_value

class MyClass:
    pass

# 动态设置类属性
setattr(MyClass, 'my_class_attribute', 'some_value')

# 检查类属性是否已设置
print(hasattr(MyClass, 'my_class_attribute'))  # 输出：True
print(MyClass.my_class_attribute)  # 输出：some_value

class MyClass:
    pass

# 创建一个MyClass的实例
my_instance = MyClass()

# 直接设置属性
my_instance.new_attribute = 'new_value'

# 检查属性是否已设置
print(hasattr(my_instance, 'new_attribute'))  # 输出：True
print(myUI_instance.new_attribute)  # 输出：new_value