qq聊天室登录、注册、退出、查找好友、私聊、群聊的代码

以下是一个简单的 QQ 聊天室的登录、注册、退出、查找好友、私聊、群聊的 Python 代码示例：

import random

class User:
    def __init__(self, username, password):
        self.username = username
        self.password = password
        self.friends = []
        self.groups = []

    def add_friend(self, friend):
        self.friends.append(friend)

    def add_group(self, group):
        self.groups.append(group)

class Group:
    def __init__(self, name):
        self.name = name
        self.members = []

    def add_member(self, member):
        self.members.append(member)

class ChatRoom:
    def __init__(self):
        self.users = []
        self.groups = []

    def register(self, username, password):
        for user in self.users:
            if user.username == username:
                return False
        self.users.append(User(username, password))
        return True

    def login(self, username, password):
        for user in self.users:
            if user.username == username and user.password == password:
                return user
        return None

    def logout(self, user):
        self.users.remove(user)

    def search_user(self, username):
        for user in self.users:
            if user.username == username:
                return user
        return None

    def create_group(self, name, owner):
        for group in self.groups:
            if group.name == name:
                return False
        group = Group(name)
        group.add_member(owner)
        owner.add_group(group)
        self.groups.append(group)
        return True

    def join_group(self, name, member):
        for group in self.groups:
            if group.name == name:
                group.add_member(member)
                member.add_group(group)
                return True
        return False

    def leave_group(self, name, member):
        for group in self.groups:
            if group.name == name and member in group.members:
                group.members.remove(member)
                member.groups.remove(group)
                return True
        return False

    def private_chat(self, sender, receiver, message):
        if receiver in sender.friends:
            print("{} -> {}: {}".format(sender.username, receiver.username, message))
        else:
            print("You are not friend with {}".format(receiver.username))

    def group_chat(self, sender, group, message):
        if group in sender.groups:
            print("{} -> {}: {}".format(sender.username, group.name, message))
            for member in group.members:
                if member != sender:
                    print("{} -> {}: {}".format(sender.username, member.username, message))
        else:
            print("You are not member of group {}".format(group.name))


# 测试代码
chat_room = ChatRoom()

# 用户注册
chat_room.register("user1", "password1")
chat_room.register("user2", "password2")
chat_room.register("user3", "password3")

# 用户登录
user1 = chat_room.login("user1", "password1")
user2 = chat_room.login("user2", "password2")
user3 = chat_room.login("user3", "password3")

# 创建群组
chat_room.create_group("group1", user1)
chat_room.create_group("group2", user2)

# 加入群组
chat_room.join_group("group1", user2)
chat_room.join_group("group1", user3)

# 私聊
chat_room.private_chat(user1, user2, "Hello!")
chat_room.private_chat(user1, user3, "Hello!")

# 群聊
chat_room.group_chat(user1, chat_room.groups[0], "Hello, group1!")
chat_room.group_chat(user2, chat_room.groups[0], "Hello, group1!")
chat_room.group_chat(user3, chat_room.groups[0], "Hello, group1!")

# 用户退出
chat_room.logout(user1)
chat_room.logout(user2)
chat_room.logout(user3)

注意：这只是一个简单的示例代码，实际应用中可能需要更加完善的代码和功能。