题解 | #修改属性1#

import sys


class Employee(object):
    def __init__(self, name, salary):
        self.name = name
        self.salary = salary
        self.age = None

    def set_age(self, age):
        self.age = age

    def printclass(self):
        print("%s'salary is %d, and his age is %s" % (self.name, self.salary, self.age))



name = input()
salary = int(input())
age = int(input())
try:
    emp = Employee(name, salary, age)  
except:
    print("Error! No age")
emp = Employee(name, salary) 
# emp.age = age #动态给对象加属性
emp.set_age(age)
emp.printclass()