帮我用python写一个电影院排队的simpy仿真模拟,变量是收银员,检票员,网上取票的机器数量和用来卖食物的柜台

好的，我可以为您编写一个电影院排队的simpy仿真模拟。以下是代码示例：

import simpy
import random

# 定义模拟的时间，单位为分钟
SIMULATION_TIME = 120

# 定义收银员工作所需的时间，单位为分钟
CASHIER_TIME = 3

# 定义检票员工作所需的时间，单位为分钟
TICKET_CHECKER_TIME = 2

# 定义网上取票的机器数
ONLINE_TICKET_MACHINES = 3

# 定义售卖食物的柜台数
FOOD_COUNTERS = 2

class Cinema:
    def __init__(self, env, cashier_num, ticket_checker_num, online_machine_num, food_counter_num):
        self.env = env
        self.cashier = simpy.Resource(env, cashier_num)
        self.ticket_checker = simpy.Resource(env, ticket_checker_num)
        self.online_machine = simpy.Resource(env, online_machine_num)
        self.food_counter = simpy.Resource(env, food_counter_num)

    def watch_movie(self, customer):
        # 顾客到达电影院，需要检票
        with self.ticket_checker.request() as request:
            yield request
            print("Customer %d starts ticket check at %d" % (customer, self.env.now))
            yield self.env.timeout(TICKET_CHECKER_TIME)
            print("Customer %d finishes ticket check at %d" % (customer, self.env.now))

        # 如果顾客选择网上购票，需要使用网上取票机取票
        if random.choice([True, False]):
            with self.online_machine.request() as request:
                yield request
                print("Customer %d starts to get ticket from online machine at %d " % (customer, self.env.now))
                yield self.env.timeout(random.randint(1,3))
                print("Customer %d gets ticket from online machine at %d" %(customer, self.env.now))

        # 顾客购买食品和饮料
        with self.food_counter.request() as request:
            yield request
            print("Customer %d starts to buy food and drinks at %d" %(customer, self.env.now))
            yield self.env.timeout(random.randint(1, 5))
            print("Customer %d finishes buying food and drinks at %d" % (customer, self.env.now))

        # 顾客购票
        with self.cashier.request() as request:
            yield request
            print("Customer %d starts to purchase movie ticket at %d" % (customer, self.env.now))
            yield self.env.timeout(CASHIER_TIME)
            print("Customer %d purchases movie ticket at %d" %(customer, self.env.now))

# 定义模拟过程
def run_simulation(env, cashier_num, ticket_checker_num, online_machine_num, food_counter_num):
    cinema = Cinema(env, cashier_num, ticket_checker_num, online_machine_num, food_counter_num)

    for customer in range(10):
        env.process(cinema.watch_movie(customer))

    # 运行模拟过程
    env.run(until=SIMULATION_TIME)

# 运行模拟
env = simpy.Environment()
run_simulation(env, 1, 2, 3, 2)

这段代码模拟了一个电影院的场景，其中顾客到达电影院后需要检票、购票、购买食品和饮料，如果顾客选择网上购票，需要使用网上取票机取票。通过这个模拟，您可以看到在不同的收银员数量、检票员数量、网上取票机数量和售卖柜台数量下，电影院的排队情况，以及如何提高电影院的效率。