题解 | #修改属性2#

class Employee:
    def __init__(self,name,salary,age=None):
        self.name = name
        self.salary = salary
        self.age = age
    def printclass(self):
        print("{}'salary is {}, and his age is {}".format(self.name,self.salary,self.age))
    def hasattr(self):
        if (self.age == None):
            print("False")
        else:
            #print("True")
            self.printclass()

name = input()
salary = input()
age = input()

e = Employee(name,salary)
e.hasattr()

e.age = age
e.hasattr()