組合

軟件重用的重要方式除了繼承之外還有另外一種方式，即：組合

組合指的是，在一個類中以另外一個類的對象作為數據屬性，稱為類的組合

class People:
    def __init__(self,name,age,sex):
        self.name = name
        self.age  = age
        self.sex  = sex

class Renwen(People):
    def __init__(self,name,age,sex,weapon):
        super().__init__(name,age,sex)
        self.weapon 
 
= weapon
        self.attribute = [] #銳雯的屬性列表
    def skill(self):
        print(‘%s is skill‘%self.name)

class Teacher(People):
    def __init__(self,name,age,sex,level):
        super().__init__(name,age,sex)
        self.level = level

    def teach(self):
        print("%s is teaching" %self.name)

 
class Attribute:
    def __init__(self,damage,spell,armor):
        self.danage = damage
        self.spell = spell
        self.armor =armor

    def tell_info(self):
        print("生命值:%s,法術:%s,護甲:%s"%(self.danage,self.spell,self.armor))

rewen = Renwen(‘銳雯‘,22,‘female‘,"砍刀")
teacher1 =Teacher(‘林書行
 
‘,30,‘male‘,20)

a = Attribute(200,20,100)#創建屬性對象

rewen.attribute.append(a) #添加屬性值

#打印出屬性值
for i in rewen.attribute:
    i.tell_info()

組合||抽象類||多態||鴨子類型