Question

我正在学习python，我正在尝试为足球队创建一个课程。我正在处理python的不同方面，以尝试更好地理解。我想要一个基于菜单的系统，该系统允许程序的用户查看所有当前团队成员或者注册加入团队。每个团队成员都有一个唯一的ID，当一个人加入时，它将简单地给他们下一个可用的号码。例如，Chris的唯一ID为1，Carl有2，所以如果Joe加入，他将自动获得第三名。以下是我目前的代码。观看卡片播放器对我来说非常适合，但我正在努力添加新播放器。

所以我的问题是，如何将新成员添加到我将存储所有数据的空列表中，如何实现下一个加入团队的人员将获得下一个可用的号码？这是为了确保每个成员编号都是唯一的。在此先感谢，渴望学习！

class Team(object):

    members = [] #create an empty list to store data

    def __init__(self, user_id, first, last, address):
        self.user_id = user_id
        self.first = first
        self.last = last
        self.address = address
        self.email = first + '.' + last + '@python.com'

        #instance is fully initialized so I am adding it to the list of users
        Team.members.append(self)

    def __str__(self):
        print()
        return 'Membership ID: {}\nFirst Name: {}\nSurname: {}\nLocation: {}\nEmail: {}\n'.format(self.user_id, self.first, self.last, self.address, self.email)
        print()

    @staticmethod
    def all_members():
        for user in Team.members:
            print (user)


    def add_member(Team):
        print()
        print("Welcome to the team!")
        print()
        first_name = input("What's your first name?\n")
        second_name = input("What's your surname?\n")
        address = input("Where do you live?\n")

        for x in Team:
            unique_id = unique_id =+ 1

        user[user_id] = [user_id, first_name, second_name, address]

user_1 = Team(1, 'Chris', 'Parker', 'London')
user_2 = Team(2, 'Carl', 'Lane', 'Chelsea')

def menu(object):

    continue_program = True
    while continue_program:
        print("1. View all members")
        print("2. Add user")
        print("3. Quit")
        try:
            choice = int(input("Please pick one of the above options "))

            if choice == 1:
                Team.all_members()
            elif choice == 2:
                Team.add_member(object)
            elif choice == 3:
                continue_program = False
                print()
                print("Come back soon! ")
                print()
            else:
                print("Invalid choice, please enter a number between 1-3")
                menu(object)
        except ValueError:
            print()
            print("Please try again, enter a number between 1 - 3")
        print()

 #my main program
 menu(object)

Answer 1

你是如此亲密：

@staticmethod
def add_member(): # belongs to the class
    print()
    print("Welcome to the team!")
    print()
    first_name = input("What's your first name?\n")
    second_name = input("What's your surname?\n")
    address = input("Where do you live?\n")

    # get the maximum id and add one
    if Team.members:
        unique_id = max(Team.members, key=lambda m: m.user_id) + 1
    else:
        unique_id = 0
    Team(unique_id , first_name, second_name, address)

在主要功能改变中：

        elif choice == 2:
            Team.add_member()

Answer 2

事情发生了变化：

主要功能操作已更改
用户计数字段为静态并自动创建并添加新用户
为了容纳用户而创建的临时列表

如果您不明白，请发表评论

all_users = []


class Team(object):
    members = []  # create an empty list to store data
    user_id = 0

    def __init__(self, first, last, address):
        self.user_id = Team.user_id
        self.first = first
        self.last = last
        self.address = address
        self.email = first + '.' + last + '@python.com'
        Team.user_id += 1

        # instance is fully initialized so I am adding it to the list of users
        Team.members.append(self)

    def __str__(self):
        print()
        return 'Membership ID: {}\nFirst Name: {}\nSurname: {}\nLocation: {}\nEmail: {}\n'.format(self.user_id,
                                                                                                  self.first, self.last,
                                                                                                  self.address,
                                                                                                  self.email)
        print()

    @staticmethod
    def all_members():
        for user in all_users:
            print(user)

    @staticmethod
    def add_member():
        print()
        print("Welcome to the team!")
        print()
        first_name = input("What's your first name?\n")
        second_name = input("What's your surname?\n")
        address = input("Where do you live?\n")

        # for x in Team:
        #     unique_id = unique_id = + 1

        all_users.append(Team(first_name, second_name, address))


def main():
    user_1 = Team('Chris', 'Parker', 'London')
    user_2 = Team('Carl', 'Lane', 'Chelsea')

    all_users.extend([user_1, user_2])

    continue_program = True
    while continue_program:
        print("1. View all members")
        print("2. Add user")
        print("3. Quit")
        try:
            choice = int(input("Please pick one of the above options "))

            if choice == 1:
                Team.all_members()
            elif choice == 2:
                Team.add_member()
            elif choice == 3:
                continue_program = False
                print()
                print("Come back soon! ")
                print()
            else:
                print("Invalid choice, please enter a number between 1-3")
                main()
        except ValueError:
            print()
            print("Please try again, enter a number between 1 - 3")
        print()


if __name__ == "__main__":
    main()

如何根据用户输入向项添加项目

2 个答案: