如何通过实例方法传递整数并将其与实例变量一起添加？

Question

我试图用实例变量bonus添加参数self.pay（将采用整数），并希望用工人的名字打印最终付款。但是，我无法打印增加的总付款

我想调用方法rise()而不是从它返回任何东西，但我很困惑如何调用它并传递一个整数。

class Information:
    def __init__(self,first,last,pay):

        self.first = first
        self.last = last
        self.pay = pay


    def rise(self,int(bonus)):
        self.pay = self.pay + bonus

    def __str__(self):
        return "%s and %s and has a balance of %s" % (self.first,self.last,self.pay)

if __name__ == "__main__":
    emp1 = Information("tom","jerry",999)
    print (emp1)

Answer 1

class Information:
    def __init__(self,first,last,pay):
        self.first = first
        self.last = last
        self.pay = pay

    def raise_salary(self, bonus):
        self.pay += int(bonus) # exception if bonus cannot be casted

    def __str__(self):
        return "%s and %s and has a balance of %s" % (self.first,self.last,self.pay)

if __name__ == "__main__":
    emp1 = Information("tom", "jerry", 999)
    print(emp1)
    emp1.raise_salary('1000') # or just emp1.raise(1000)
    print(emp1)

Answer 2

我试过下面的代码。

我更新了def涨（自我，int（奖金））：def def（自我，奖金）：

class Information:
    def __init__(self,first,last,pay):

        self.first = first
        self.last = last
        self.pay = pay


    def rise(self,bonus):
        self.pay = self.pay + bonus

    def __str__(self):
        return "%s and %s and has a balance of %s" % (self.first,self.last,self.pay)

if __name__ == "__main__":
    emp1 = Information("tom","jerry",999)
    emp1.rise(89)
    print (emp1)