题解 | 修改属性2

# -*- coding: utf-8 -*-
class Employee(object):
    def __init__(self, name, salary):
        self.name = name
        self.salary = salary

    def printclass(self):
        try:
            print("{}'salary is {}, and his age is {}".format(self.name, self.salary, self.age))
        except:
            print("Error! No age")
        
            

if __name__ == '__main__':
    name = input()
    salary = int(input())
    age = int(input())

    # 创建 Employee 实例
    e = Employee(name, salary)
    print(hasattr(e,'age'))
    if not hasattr(e,'age'):
        e.__setattr__('age',age)

    # 调用 printclass 方法输出信息
    e.printclass()