Python之面向对象编程【小明跑步】、【置办家具】

#!usr/bin/python
  2 #encoding=utf-8
  3 #-----------------小明跑步-------------
  4 #1.小明体重75.0公斤
  5 #2.小明每次跑步会减肥0.5公斤
  6 #3.小明每次吃东西体重会增加1公斤
  7
  8
  9 class Person(object):
 10         def __init__(self, name, weight):
 11                 self.weight = weight
 12                 self.name = name
 13         def __str__(self):
 14                 msg = self.name + " 的体重为: " + str(self.weight) + " KG"
 15                 return msg
 16         def run(self, num):
 17                 self.weight -= 0.5 * num # num表示对象跑步的次数
 18         def eat(self, num):
 19                 self.weight += num # num表示对象吃东西的次数
 20
 21 xiaoming = Person('xiaoming',75.0)
 22 #print ("小明原始体重为： %f"%xiaoming.weight)
 23 print(xiaoming)
 24 print("--------------------------------------------")
 25 xiaoming.run(4)
 26 print(xiaoming)
 27 print("--------------------------------------------")
 28 xiaoming.eat(1)
 29 print(xiaoming)

2. 放置家具：

实现输出房间总面积，剩余面积，家里家具列表。

#!usr/bin/python
  2 #encoding=utf-8
  3 #-------------------------摆放家具---------------------------
  4 # 1. 房子有总面积、家具，新房子没有任何家具
  5 # 2. 家具有名字和占地面积，需要把家具添加到房子里
  6 # 3. 打印房子时，需要输出：房子总面积、剩余面积、家具列表
  7
  8 #定义房间类
  9 class House():
 10         flag = 0
 11         def __init__(self, area):
 12                 self.area = area
 13                 self.remidArea = area
 14                 self.furniture = [] #房子里家具列表
 15         def __str__(self):
 16                 msg = "房子的总面积为：" + str(self.area) + "平方。"
 20                 msg = msg + "\n家的剩余面积为：" + str(self.remidArea) + " 平方。\n家里的家具有："
 21                 for temp in self.furniture:
 22                         msg += temp.name +  "，"
 23                 msg = msg.strip("，") + "。"
 24                 return msg
 
 26
 27 #定义函数：添加家具到房子
 28         def AddFurni(self, item):
 29                 global flag
 30                 print("购买了家具：%s，占地面积：%s 平方。"%(item.name,item.area))
              if self.remidArea >= item.area :
 32                         self.furniture.append(item)
 33                         self.remidArea -= item.area
 34
 35                 else:
 36         #               flag =1
 37                         print ("房子面积不足以容纳该家具！")
 42
 43 #定义家具类
 44 class Furniture():
 45         def __init__(self, name, area):
 46                 self.name = name  #家具名称
 47                 self.area = area
 48
 49 print("----------------------第一次------------------------")
 50 myHouse = House(160)
 51 bed = Furniture("床",25)
 52 myHouse.AddFurni(bed)
 53 print(myHouse)
 54 print("----------------------第二次------------------------")
 55 desk = Furniture("书桌",5)
 56 myHouse.AddFurni(desk)
 57 print(myHouse)
 58 print("----------------------第三次------------------------")
 59 sofa = Furniture("沙发",100)
myHouse.AddFurni(sofa)
 61 print(myHouse)
 62 print("----------------------第四次------------------------")
 63 fridge = Furniture("冰箱",50)
 64 myHouse.AddFurni(fridge)