猜猜Python中的数字程序-在输入我想玩的次数后，游戏不工作

import random

def guess_number_game():
    play_again = True
    while play_again:
        try:
            num_of_games = int(input("请输入想玩的次数："))
            for _ in range(num_of_games):
                secret_number = random.randint(1, 100)
                guess = None
                num_of_guesses = 0
                
                while guess != secret_number:
                    guess = int(input("请输入一个猜测的数字："))
                    num_of_guesses += 1
                    
                    if guess < secret_number:
                        print("猜小了！")
                    elif guess > secret_number:
                        print("猜大了！")
                    else:
                        print("恭喜你，猜对了！")
                        print("你猜了", num_of_guesses, "次")
                
                print("游戏结束")
            
            play_again = False
        except ValueError:
            print("请输入一个有效的整数次数！")

guess_number_game()