用python写一份代码，内容为“石头剪刀布”的游戏，要求用户注册功能，加个文件读写，把用户的信息和猜数次数，成功失败次数都记录下来，还能给个榜单，搞个准确率排行榜

好的，我可以帮你实现这个游戏，以下是代码:

import random

class Game:
    def __init__(self):
        self.user_data = {} # 创建用户数据字典
        self.load_data() # 加载已有数据
    
    def load_data(self):
        try:
            with open('user_data.txt', 'r') as f:
                lines = f.readlines()
                for line in lines:
                    user, wins, loses, draws, guesses = line.strip().split(',')
                    self.user_data[user] = {'wins': int(wins), 'loses': int(loses), 'draws': int(draws), 'guesses': int(guesses)}
        except:
            pass
    
    def save_data(self):
        with open('user_data.txt', 'w') as f:
            for user, data in self.user_data.items():
                f.write(f"{user},{data['wins']},{data['loses']},{data['draws']},{data['guesses']}\n")
    
    def register(self):
        while True:
            user = input('请输入用户名: ')
            if user in self.user_data:
                print('该用户已存在，请重新输入')
            else:
                self.user_data[user] = {'wins': 0, 'loses': 0, 'draws': 0, 'guesses': 0}
                print(f"用户 {user} 注册成功")
                break
    
    def play(self):
        while True:
            user = input('请输入用户名: ')
            if user not in self.user_data:
                print('该用户不存在，请注册后再进行游戏')
                continue
            
            guess = input('请输入你的选择(石头/剪刀/布): ')
            if guess not in ['石头', '剪刀', '布']:
                print('输入有误，请重新输入')
                continue
            
            computer_guess = random.choice(['石头', '剪刀', '布'])
            print(f"电脑出招: {computer_guess}")
            
            if guess == computer_guess:
                print('平局')
                self.user_data[user]['draws'] += 1
            elif (guess == '石头' and computer_guess == '剪刀') or (guess == '剪刀' and computer_guess == '布') or (guess == '布' and computer_guess == '石头'):
                print('你赢了')
                self.user_data[user]['wins'] += 1
            else:
                print('你输了')
                self.user_data[user]['loses'] += 1
            
            self.user_data[user]['guesses'] += 1
            self.save_data()
            
            play_again = input('是否继续游戏(y/n): ')
            if play_again.lower() == 'n':
                break
    
    def leaderboard(self):
        sorted_data = sorted(self.user_data.items(), key=lambda x: x[1]['wins']/(x[1]['wins']+x[1]['loses']), reverse=True)
        print('排行榜:')
        for i, (user, data) in enumerate(sorted_data):
            print(f"{i+1}. 用户名: {user}, 准确率: {data['wins']/(data['wins']+data['loses']):.2f}")
    

if __name__ == '__main__':
    game = Game()
    while True:
        choice = input('请选择功能(1.注册，2.游戏，3.排行榜，4.退出): ')
        if choice == '1':
            game.register()
        elif choice == '2':
            game.play()
        elif choice == '3':
            game.leaderboard()
        elif choice == '4':
            break
        else:
            print('输入有误，请重新输入')

这个游戏包含注册、猜拳、保存数据、排行榜等功能。用户数据保存在 `user_data.txt` 文件中，每个用户对应一行，格式为 `用户名,胜利次数,失败次数,平局次数,猜数次数`。排行榜按照准确率（胜利次数/总次数）从高到低排序。