python实现汽车管理系统

import datetime
class CarMessage( ):
  def __init__(self, num, owner, color, type, connect, money, endtime):
    # 汽车属性
    self.num = num
    self.color = color
    self.type = type
    self.owner = owner
    self.connect = connect
    self.money = money
    self.entime = endtime
 
  def __str__(self):
    print(\'车牌号：<%s> 车主：<%s> 颜色:<%s> 车型:<%s> 联系方式：<%s> 余额：<%s> 停车时间：<%s> \'
       % (self.num, self.owner, self.color, self.type, self.connect, self.money, self.entime))
 
 
class Park( ):
  def init(self): # 对停车场初始化车辆
    self.car_list.append(CarMessage(\'001\', \'python\', \'黑\', \'大卡\', \'123456789\', 34, datetime.datetime.now()))
    self.car_list.append(
      CarMessage(\'002\', \'hello\', \'黑\', \'小汽车\', \'123456789\', 87, datetime.datetime.now() - datetime.timedelta(minutes=10)))
    self.car_list.append(
      CarMessage(\'003\', \'java\', \'白\', \'小汽车\', \'123456789\', 55, datetime.datetime.now() - datetime.timedelta(hours=1)))
    self.car_list.append(
      CarMessage(\'004\', \'westos\', \'黑\', \'小卡\', \'123456789\', 60, datetime.datetime.now() - datetime.timedelta(days=2)))
    self.car_list.append(
      CarMessage(\'005\', \'root\', \'白\', \'中卡\', \'123456789\', 24, datetime.datetime.now() - datetime.timedelta(minutes=60)))
 
  def __init__(self):
    self.max_car = 200
    self.car_list = []
    self.cur_car = len(self.car_list)
 
 
  def Menu(self):
    self.init()
    while True:
      print(\"\"\"
          停车场管理系统
        1）停车
        2）取车
        3）余额查询
        4）显示已存放车辆
        5）查询
        6）编辑车辆信息
        7）退出
      
      \"\"\")
      choice = input(\"请输入你的选择：\")
      if choice == \'1\':
        self.park()
      elif choice == \'2\':
        self.exit()
      elif choice == \'3\':
        car = input(\"请输入车牌号：\")
        self.pay(car)
      elif choice == \'4\':
        for i in self.car_list:
          CarMessage.__str__(i)
      elif choice == \'5\':
        self.find()
      elif choice == \'6\':  #编辑车辆信息
        self.edit()
      elif choice == \'7\':
        exit(0)
      else:
        print(\'请输入正确选项！！！\')
  def park(self):
    if self.cur_car<self.max_car:
      car_num = input(\'请输入你的车牌号：\')
      res = self.check(car_num) # 判断该车牌是否有停车记录
      if res is None:
        self.car_list.append(CarMessage(car_num, input(\'车主：\'), input(\'颜色：\'), input(\'车型<小汽车、小卡、中卡和大卡>：\'),
                   input(\'联系方式：\'), int(input(\'余额\')), datetime.datetime.now()))
        print(\'汽车可以进入\')
      else:
        print(\'车辆已在停车场内部\')
 
    else:
      print(\'车位已满，无法停车\')
 
 
  def exit(self):
    car_num = input(\"请输入你的车牌号：\")
    res = self.check(car_num)
    if res is not None:
      self.pay(res)
      self.car_list.remove(res)
      print(\'一路平安,出行平安\')
 
    else:
      print(\'你的车辆不在停车场内部，请通知管理员！\')
 
  def pay(self,car):
    # res = self.check(car)
    money = (datetime.datetime.now() - car.endtime).seconds / 60
    print(\"当前余额：%s\" %(money))
    while True:
      if car.money >= money: # 判断余额是否够支付
        car.money -= money
        print(\'自动付款%s成功\' % (money))
        break
      else:
        print(\'余额不足请充值\')
        car.money += int(input(\'充值金额：\'))
        print(\'充值成功\')
 
  def check(self,car_num):
    for i in self.car_list:
      if car_num == i.num:
        return i
    else:
      return None
 
  def find(self):
    while True:
      print(\'\'\'
      1）根据车牌查询
      2）根据车型查询
      3）返回
      \'\'\')
      choice = input(\"请输入你的选择:\")
      if choice == \'1\':
        num = input(\'车牌号：\')
        res = self.check(num)
        if res is not None:
          CarMessage.__str__(res)
 
        else:
          print(\"查无此车！\")
 
      elif choice == \'2\':
        type = input(\"车型<小汽车、小卡、中卡和大卡>：\")
        if type in [\'小汽车\',\'小卡\',\'中卡\',\'大卡\']:
          for i in self.car_list:
            if i.type == type:
              CarMessage.__str__(i)
        else:
          print(\'不存在%s这种车型\'%(type))
 
 
      elif choice == \'3\':
        break
      else:
        print(\'请输入正确选项\\n\')
  def edit(self):  #更改车辆信息
    num= input(\'请输入车牌号：\')
    res = self.check(num)
    if res is not None:
      CarMessage.__str__(res)
      print(\'信息修改：\\n车牌号：%s\'%(num))
      res.owner = input(\'车主：\')
      res.clor = input(\'颜色：\')
      while True:
        type = input(\"车型<小汽车、小卡、中卡和大卡>：\")
        if type in [\'小汽车\', \'小卡\', \'中卡\', \'大卡\']:
          res.type = type
          break
        else:
          print(\'不存在%s这种车型,请重新输入\\n\' % (type))
 
      res.connect = input(\'联系方式：\')
      res.money = int(input(\'余额：\'))
      res.entime = datetime.datetime.strptime(input(\'进入停车场时间(eg:2018-05-21 11:14:10)：\'),
                          \'%Y-%m-%d %H:%M:%S\')
      print(\'信息修改成功...\')
 
    else:
      print(\'没有车牌%s的车辆信息\'%(num))
 
p = Park()
p.Menu()