Python循环代码仅单次读取输入重复输出7次的问题排查

你的代码存在6处核心问题，直接导致预期逻辑失效：

• 输入逻辑位置错误：读取用户输入的input()语句全部写在了while循环外部，程序启动时只会执行1次输入读取，后续7轮循环全程复用第一次输入的分数值，不会重新触发输入请求，自然会重复打印同一轮结果直到胜场累计到7。
• 循环条件存在运算符优先级bug：while player_one != 7 or player_two != 7 is True会被Python按优先级解析为player_one !=7 or (player_two != (7 is True))，7 is True的结果永远是False，等价于判断player_one !=7 or player_two != False，完全不符合「任意一方未到7分就继续对局」的预期，正确循环终止条件应该是任意一方胜场达到7就停止循环，即循环运行条件为player_one <7 and player_two <7。
• 输入类型未转换：input()默认返回字符串类型，字符串按字典序比较大小，和整数比较逻辑完全不同，哪怕输入全是数字，也会出现"10" < "2"的逻辑错误，必须显式用int()转成整数再做分数对比。
• 平局分支存在冗余无效代码：score_one == score_two是比较运算不是赋值操作，写在分支里没有任何实际作用，属于无效代码。
• 变量名拼写错误：打印Player1获胜结果时写的player-two是减号连接的非法标识符，运行时会直接触发名称错误，正确变量名是下划线连接的player_two。
• 结果判断逻辑冗余错误：你把平局判断写成了嵌套在主循环内的while循环，完全没有必要。胜场判断、最终胜负输出完全可以移到主循环结束后统一执行，不需要在循环内反复break判断，嵌套的while循环也无法正确触发平局判定。

player_one = 0
player_two = 0

# 双方胜场均未达到7时持续对局
while player_one < 7 and player_two < 7:
    # 每轮对局开始时读取本轮输入，放在循环内部才能逐轮触发输入
    score_one = int(input("Player one, what is your score?"))
    score_two = int(input("Player two, what is your score?"))

    # 对比本轮分数累计胜场
    if score_one > score_two:
        print(f"Player 1 wins the round with {score_one} beating Player 2 with {score_two}")
        player_one += 1
    elif score_two > score_one:
        print(f"Player 2 wins the round with {score_two} beating Player 1 with {score_one}")
        player_two += 1
    else:
        print("This round has ended in a draw.")
        player_one += 1
        player_two += 1

# 对局结束后统一输出最终结果
if player_one == 7 and player_two == 7:
    print("DING DING it's a draw.")
elif player_one == 7:
    print(f"The game has ended with Player 1 winning by {player_one} to Player 2's {player_two}")
else:
    print(f"The game has ended with Player 2 winning by {player_two} to Player 1's {player_one}")

内容的提问来源于stack exchange，提问作者BaltoTheDog