题解 | 修改属性2

class Employee:
    def __init__(self, name, salary) -> None:
        self.name = name
        self.salary = salary
    
    def printclass(self):
        print(f"{self.name}'salary is {self.salary}, and his age is {self.age}")

name = input()
salary = int(input())
e = Employee(name, salary)

if hasattr(e,"age"):
    e.printclass()
else:
    print(hasattr(e,"age"))
    age = int(input())
    setattr(e, "age", age)
    e.printclass()