图书馆座位管理系统python代码

以下是一个简单的图书馆座位管理系统的Python代码示例：

class Library:
    def __init__(self, name, location, capacity):
        self.name = name
        self.location = location
        self.capacity = capacity
        self.seats = {}

    def add_seat(self, seat_number):
        if len(self.seats) < self.capacity:
            self.seats[seat_number] = "available"
        else:
            print("No more seats available in this library.")

    def remove_seat(self, seat_number):
        del self.seats[seat_number]

    def reserve_seat(self, seat_number):
        if self.seats[seat_number] == "available":
            self.seats[seat_number] = "reserved"
            print(f"Seat {seat_number} has been reserved.")
        elif self.seats[seat_number] == "reserved":
            print(f"Seat {seat_number} is already reserved.")
        else:
            print(f"Seat {seat_number} is not available.")

    def cancel_reservation(self, seat_number):
        if self.seats[seat_number] == "reserved":
            self.seats[seat_number] = "available"
            print(f"Reservation for seat {seat_number} has been cancelled.")
        elif self.seats[seat_number] == "available":
            print(f"No reservation found for seat {seat_number}.")
        else:
            print(f"Seat {seat_number} is not available.")

    def display_seats(self):
        for seat, status in self.seats.items():
            print(f"Seat {seat} is {status}.")

可以使用以下代码来测试：

library = Library("Main Library", "San Francisco", 50)

for i in range(1, 51):
    library.add_seat(i)

library.display_seats()

library.reserve_seat(10)
library.reserve_seat(10)
library.cancel_reservation(20)
library.reserve_seat(20)

library.display_seats()

输出应为：

Seat 1 is available.
Seat 2 is available.
...
Seat 49 is available.
Seat 50 is available.
Seat 10 has been reserved.
Seat 10 is already reserved.
No reservation found for seat 20.
Seat 20 has been reserved.
Seat 1 is available.
Seat 2 is available.
...
Seat 9 is available.
Seat 10 is reserved.
Seat 11 is available.
...
Seat 19 is available.
Seat 20 is reserved.
...
Seat 49 is available.
Seat 50 is available.

这个系统允许图书馆管理员添加、删除和显示座位，以及让读者预定和取消预定座位。