为自定义类赋值

class Person {
  constructor(name, age) {
    this.name = name;
    this.age = age;
  }
}

// 创建 Person 类的实例
const person1 = new Person('张三', 25);
const person2 = new Person('李四', 30);

// 为实例的属性赋值
person1.name = '王五';
person1.age = 28;

console.log(person1); // 输出: Person { name: '王五', age: 28 }
console.log(person2); // 输出: Person { name: '李四', age: 30 }

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

# 创建 Person 类的实例
person1 = Person('张三', 25)
person2 = Person('李四', 30)

# 为实例的属性赋值
person1.name = '王五'
person1.age = 28

print(person1.__dict__) # 输出: {'name': '王五', 'age': 28}
print(person2.__dict__) # 输出: {'name': '李四', 'age': 30}