Python中询问用户是否要另一数字的while循环无法停止如何解决

你的内层循环无法终止是缩进错误导致的：
你用来判断用户输入、修改Additional_Num变量的代码块，放在了while Additional_Num == True循环的外部，内层循环运行过程中永远不会修改终止条件变量的值，因此不管用户输入什么内容，循环都会一直重复执行。

除此之外代码还有两处明显逻辑错误：

1. 打印AI数值的语句错误输出了布尔变量Additional_Num，应该输出预先生成的AI_num
2. "Bye for now!"的打印放在了最外层循环内部，会导致每次询问是否重玩后都会先打印一次，不符合预期

import random 

play = True
print("Hello! Welcome to 13 in - to Win")
name = input("What is your name? ")

while play == True:
    AI_num = random.randint(1,19)
    Additional_Num = True
    PTotal = 0
  
    while Additional_Num == True:
        Player_Num = random.randint(1,10)
        PTotal = PTotal + Player_Num
        
        print(name,"Got A",Player_Num)
        print("Your Total is: ",PTotal)
        
        play_again = input("Would You Like Another Number? <Yes or No>")
        # 以下判断逻辑缩进移到内层循环内部
        if play_again == "Yes":
            Additional_Num = True
        else:   
            Additional_Num = False
            print("AI got ",AI_num)
            print(name,"Got total",PTotal)
  
    play_again = input("Would you like to play again? <Yes or No>")
  
    if play_again == "Yes":
        play = True
    else:   
        play = False

# 结束提示移到最外层循环外
print("Bye for now!")

• 输入判断兼容大小写：将用户输入转成全小写/全大写后再判断，兼容用户输入yes、YES、no、NO等不同写法
• 增加胜负判定逻辑：可以对比玩家总点数和AI点数、或者判断是否超过13点，输出胜负结果
• 增加输入合法性校验：如果用户输入的不是Yes/No，给出提示要求重新输入，避免逻辑错误

内容的提问来源于stack exchange，提问作者Surajjh