什么时候最好在Python中使用一个类？

Question

我是python和编程的新手,所以非常感谢你对这一点的任何澄清.

例如,在以下代码中:

    #Using a class
class Monster(object): 
    def __init__(self, level, damage, duration): 
        print self
        self.level = level
        self.damage = damage
        self.duration = duration

    def fight(self):
        print self 
        print "The monster's level is ", self.level
        print "The monster's damage is ", self.damage
        print "The attack duration is ", self.duration

    def sleep(self): 
        print "The monster is tired and decides to rest."

x = Monster(1, 2, 3)
y = Monster(2, 3, 4)
x.fight()
y.fight()
    y.sleep() 

   #just using a function
def fight_func(level, damage, duration):
    print "The monster's level is ", level
    print "The monster's damage is ", damage
    print "The attack duration is ", duration

fight_func(1, 2, 3)
fight_func(5,3,4)

纯函数版本似乎更清晰,并给出相同的结果.

是否可以创建类的主要值并在对象上调用多个方法,例如战斗还是睡眠？

Answer 1

你的例子相当简单.

在一个更完整的例子中,战斗不仅会显示当前状态 - 它还会修改该状态.你的怪物可能会受到伤害,这会改变它的生命值和士气.这个状态必须存储在某个地方.如果你使用一个类,添加实例变量来存储这个状态是很自然的.

仅使用函数将更难找到存储状态的好地方.