帮我写一个用python代码的影碟租赁管理信息系统，可以实现影碟管理、影碟租借、 影碟查询和月租管理的功能。

当然可以帮你写一个用Python的影碟租赁管理信息系统，实现影碟管理、影碟租借、影碟查询和月租管理的功能。下面是一个简单的示例代码：

class DVD:
    def __init__(self, title, actor, release_date):
        self.title = title
        self.actor = actor
        self.release_date = release_date

class DVDManagementSystem:
    def __init__(self):
        self.dvds = []
        self.rented_dvds = []
        self.users = []

    def add_dvd(self, dvd):
        self.dvds.append(dvd)

    def delete_dvd(self, dvd):
        if dvd in self.dvds:
            self.dvds.remove(dvd)

    def rent_dvd(self, user, dvd):
        if dvd in self.dvds and dvd not in self.rented_dvds:
            self.rented_dvds.append(dvd)
            user.rented_dvds.append(dvd)

    def return_dvd(self, user, dvd):
        if dvd in self.rented_dvds and dvd in user.rented_dvds:
            self.rented_dvds.remove(dvd)
            user.rented_dvds.remove(dvd)

    def search_dvds_by_title(self, title):
        found_dvds = []
        for dvd in self.dvds:
            if title.lower() in dvd.title.lower():
                found_dvds.append(dvd)
        return found_dvds

    def search_dvds_by_actor(self, actor):
        found_dvds = []
        for dvd in self.dvds:
            if actor.lower() in dvd.actor.lower():
                found_dvds.append(dvd)
        return found_dvds

    def search_dvds_by_date(self, release_date):
        found_dvds = []
        for dvd in self.dvds:
            if release_date == dvd.release_date:
                found_dvds.append(dvd)
        return found_dvds

    def add_user(self, user):
        self.users.append(user)

    def get_premium_users(self):
        premium_users = []
        for user in self.users:
            if user.user_type == "Premium":
                premium_users.append(user)
        return premium_users

class User:
    def __init__(self, username, password, user_type):
        self.username = username
        self.password = password
        self.user_type = user_type
        self.rented_dvds = []

# 使用示例
system = DVDManagementSystem()

# 影碟管理
dvd1 = DVD("影片1", "演员1", "2022-01-01")
dvd2 = DVD("影片2", "演员2", "2022-02-01")
system.add_dvd(dvd1)
system.add_dvd(dvd2)
system.delete_dvd(dvd2)

# 影碟租借
user1 = User("user1", "password1", "Premium")
user2 = User("user2", "password2", "Regular")
system.add_user(user1)
system.add_user(user2)
system.rent_dvd(user1, dvd1)
system.return_dvd(user1, dvd1)

# 影碟查询
dvds_by_title = system.search_dvds_by_title("影片")
dvds_by_actor = system.search_dvds_by_actor("演员")
dvds_by_date = system.search_dvds_by_date("2022-01-01")

# 月租管理
premium_users = system.get_premium_users()

这是一个简单的示例代码，你可以根据你的具体需求进行修改和扩展。例如，你可以添加数据库连接和SQL查询来实现数据的持久化存储。同时，你还可以添加更多的功能和逻辑来完善影碟租赁管理信息系统。