class Person:
  """人類"""

  def __init__(self, name, weight):

    self.name = name
    self.weight = weight

  def __str__(self):

    return "我的名字叫 %s 體重 %.2f 公斤" % (self.name, self.weight)

  def run(self):
    """跑步"""

    print("%s 愛(ài)跑步，跑步鍛煉身體" % self.name)
    self.weight -= 0.5

  def eat(self):
    """吃東西"""

    print("%s 是吃貨，吃完這頓再減肥" % self.name)
    self.weight += 1


xiaoming = Person("小明", 75)

xiaoming.run()
xiaoming.eat()
xiaoming.eat()

print(xiaoming)

class HouseItem:

  def __init__(self, name, area):
    """

    :param name: 家具名稱
    :param area: 占地面積
    """
    self.name = name
    self.area = area

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


# 1. 創(chuàng)建家具
bed = HouseItem("席夢(mèng)思", 4)
chest = HouseItem("衣柜", 2)
table = HouseItem("餐桌", 1.5)

print(bed)
print(chest)
print(table)

class House:

  def __init__(self, house_type, area):
    """

    :param house_type: 戶型
    :param area: 總面積
    """
    self.house_type = house_type
    self.area = area
    
    # 剩余面積默認(rèn)和總面積一致
    self.free_area = area
    # 默認(rèn)沒(méi)有任何的家具
    self.item_list = []

  def __str__(self):

    # Python 能夠自動(dòng)的將一對(duì)括號(hào)內(nèi)部的代碼連接在一起
    return ("戶型：%s\n總面積：%.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)

...

# 2. 創(chuàng)建房子對(duì)象
my_home = House("兩室一廳", 60)

my_home.add_item(bed)
my_home.add_item(chest)
my_home.add_item(table)

print(my_home)

  def add_item(self, item):

    print("要添加 %s" % item)
    # 1. 判斷家具面積是否大于剩余面積
    if item.area > self.free_area:
      print("%s 的面積太大，不能添加到房子中" % item.name)

      return

    # 2. 將家具的名稱追加到名稱列表中
    self.item_list.append(item.name)

    # 3. 計(jì)算剩余面積
    self.free_area -= item.area