如何一次访问和更改一个类的所有对象的属性？

import inspect

class MyClass:
    def __init__(self, name, age):
        self.name = name
        self.age = age

    def display(self):
        print(f"Name: {self.name}, Age: {self.age}")

# 创建多个对象
obj1 = MyClass("John", 25)
obj2 = MyClass("Alice", 30)
obj3 = MyClass("Bob", 35)

# 获取类的属性列表
attributes = inspect.getmembers(MyClass, lambda a: not(inspect.isroutine(a)))

# 遍历对象列表，访问和更改属性
for attr in attributes:
    attr_name = attr[0]
    attr_value = getattr(obj1, attr_name)

    # 输出属性值
    print(f"Object 1 - {attr_name}: {attr_value}")

    # 修改属性值
    setattr(obj1, attr_name, attr_value + 1)

# 输出修改后的属性值
obj1.display()