python简易停车场收费代码

好的，以下是一个简单的停车场收费 Python 代码示例：

class ParkingLot:
    def __init__(self, spots):
        self.total_spots = spots
        self.available_spots = spots
        self.parking_slots = {}

    def park(self, reg_number):
        if self.available_spots == 0:
            print("Sorry, parking lot is full.")
            return False
        else:
            slot = self.total_spots - self.available_spots + 1
            self.available_spots -= 1
            print(f"Allocated slot number: {slot}")
            self.parking_slots[slot] = reg_number
            return True

    def leave(self, slot):
        if slot not in self.parking_slots:
            print("Invalid slot number.")
            return False
        else:
            self.available_spots += 1
            del self.parking_slots[slot]
            print(f"Slot number {slot} is free.")
            return True

    def status(self):
        print("Slot No.\tRegistration No.")
        for slot, reg_num in self.parking_slots.items():
            print(f"{slot}\t\t{reg_num}")

    def get_reg_numbers_for_color(self, color):
        reg_numbers = []
        for slot, reg_num in self.parking_slots.items():
            if self.parking_slots[slot] == color:
                reg_numbers.append(reg_num)
        if reg_numbers:
            print(", ".join(reg_numbers))
        else:
            print("Not found.")

    def get_slot_numbers_for_color(self, color):
        slot_numbers = []
        for slot, reg_num in self.parking_slots.items():
            if self.parking_slots[slot] == color:
                slot_numbers.append(str(slot))
        if slot_numbers:
            print(", ".join(slot_numbers))
        else:
            print("Not found.")

    def get_slot_number_for_reg_number(self, reg_number):
        for slot, num in self.parking_slots.items():
            if self.parking_slots[slot] == reg_number:
                print(f"{slot}")
                return
        print("Not found.")


def main():
    capacity = input("Enter parking lot capacity: ")
    parking_lot = ParkingLot(int(capacity))

    while True:
        command = input("Enter command: ")
        inputs = command.split()
        if inputs[0] == "park":
            parking_lot.park(inputs[1])
        elif inputs[0] == "leave":
            parking_lot.leave(int(inputs[1]))
        elif inputs[0] == "status":
            parking_lot.status()
        elif inputs[0] == "registration_numbers_for_cars_with_colour":
            parking_lot.get_reg_numbers_for_color(inputs[1])
        elif inputs[0] == "slot_numbers_for_cars_with_colour":
            parking_lot.get_slot_numbers_for_color(inputs[1])
        elif inputs[0] == "slot_number_for_registration_number":
            parking_lot.get_slot_number_for_reg_number(inputs[1])
        elif inputs[0] == "exit":
            break
        else:
            print("Invalid input")


if __name__ == "__main__":
    main()

该停车场有以下功能：

- park <reg_number>：停车并分配空闲车位
- leave <slot>：从指定车位上离开车辆
- status：查看停车场状态，包括所有已占用车位的车牌号码和车位号码
- registration_numbers_for_cars_with_colour <color>：查找与指定颜色匹配的所有车牌号码
- slot_numbers_for_cars_with_colour <color>：查找与指定颜色匹配的所有车位号码
- slot_number_for_registration_number <reg_number>：查找与指定车牌号码匹配的车位号码

当输入 “exit” 时程序停止运行。