python之类和__init__
构建一个商品类，__init__函数类似于构造方法，self类似于this
1 import random 2 class Goods: 3 def __init__(self, name, price): 4 self.name = name 5 self.price = price 6 7 def changeprice(self, m, n): 8 self.price = random.randint(m, n) 9 return self.price
再写一个商店类，用于存放商品
1 class Gshop: 2 goodslist = [] 3 def __init__(self, g): 4 self.goodslist.append(g) 5 6 def add(self, g): 7 self.goodslist.append(g) 8 9 def changegoodslistprice(self): 10 for w in self.goodslist: 11 w.changeprice(20, 50) 12 print(w.name, w.price)
实例化对象，执行对象的方法
1 import goods,gshop 2 toy = goods.Goods('洋娃娃', 30) 3 gshopdemo = gshop.Gshop(toy) 4 #print(toy.name, toy.price) 5 6 car_wlhg = goods.Goods('五菱宏光', 30000) 7 gshopdemo.add(car_wlhg) 8 gshopdemo.changegoodslistprice()
运行结果：
