python_进阶_09

摆放家具

class HouseItem:
    def __init__(self,name,area):
        self.name = name
        self.area = area

    def __str__(self):
        return"[%s]占地%.2f" %(self.name,self.area)


class House:
    def __init__(self,house_type,area):
        self.house_type = house_type
        self.area = area
        # 剩余面积
        self.free_area = area
        # 家具名称列表
        self.item_list = []

    def __str__(self):
        # python 能够自动的将一对括号内部的代码连接在一起
        return ("户型：%s\n总面积：%.2f[剩余：%.2f]\n家具：%s"
                %(self.house_type,self.area,self.free_area,self.item_list))

    def add_item(self, item):
        print("要添加%s" %item)
        # 1. 判断家具面积
        if item.area > self.free_area:
            print("%s的面积太大，无法添加" %item.name)
            return
        # 2. 将家具的名称添加到列表中
        self.item_list.append(item.name)
        # 3. 计算剩余面积
        self.free_area -= item.area

# 创建家具
bed = HouseItem("席梦思",4)
chest = HouseItem("衣柜",2)
table = HouseItem("餐桌",1.5)
print(bed)
print(chest)
print(table)

# 创建房子对象
my_home = House("两室一厅",60)
my_home.add_item(bed)
my_home.add_item(chest)
my_home.add_item(table)
print(my_home)

输出为