无法解决我的错误。 TypeError：'int'类型的对象没有len（）

Question

我正在制作一个模拟Roshambo（岩石，纸，剪刀）的游戏。 一切都很好，除非你赢了一场比赛，我得到一个错误。这是我的代码。

###import the random module 
import random 
import time 
##my function 
def RockPaperScissors(): 
    print("This is Roshambo Simulator 2016 copyright © Jared is Cool") 
    time.sleep(2.5) 
    print("Your score is on the left, and the computers is on the right.") 
    time.sleep(1.25) 
    score = [0,0] 
    print(score) 
    cpu = 1, 2, 3 
### game loop! you choose your weapon 
    while True: 
     while True: 
      choice = input("Rock(1), Paper(2), or Scissors(3)?") 
      if choice == "1": 
       whichOne = 1 
       break 
      elif choice == "2": 
       whichOne = 2 
       break 
      elif choice == "3": 
       whichOne = 3 
       break 

##who wins the roshambo 
     cpu = random.choice(cpu) 
     if whichOne == cpu: 
      print("stale!") 
      print(score) 
     elif (whichOne == 3 and cpu == 2) or (whichOne == 2 and cpu == 1) or (whichOne == 1 and cpu == 3): 
      print("win!") 
      score[0] = score[0] + 1 
      print(score) 
     else: 
      print("lose") 
      print(score) 
      score[1] = score[1] + 1 

RockPaperScissors() 

这是我不断收到的错误。

Traceback (most recent call last): 
    File "python", line 41, in <module> 
    File "python", line 28, in RockPaperScissors 
TypeError: object of type 'int' has no len() 

Answer 1

你的问题是在这条线：

cpu = random.choice(cpu) 

是第一次运行时，它的工作原理，因为cpu在你的代码的开始分配的元组。当循环再次出现时它会失败，因为你已经用单个值（一个整数）替换了元组。

我建议使用不同的变量一个值，所以行会是这样的：

cpu_choice = random.choice(cpu) 

你可以选择使用random.randint(1,3)挑选的价值，而不是与元组打扰的。

Answer 2

正如评论已经提到：

cpu = random.choice(cpu) here you replace your list of choices by the choice (an integer). Try cpu_choice = random.choice(cpu) and replace the following cpu -names.

但你也可以做一些更多的东西把它缩短：

玩家选择：

while True: 
    choice = input("Rock(1), Paper(2), or Scissors(3)?") 
    if choice in ["1", "2", "3"]: 
     whichOne = int(choice) 
     break 

电脑的选择：

cpu_choice = random.choice(cpu) 

if whichOne == cpu_choice: 
    print("stale!") 

elif (whichOne, cpu_choice) in [(3, 2), (2, 1), (1, 3)]: 
    print("win!") 
    score[0] = score[0] + 1 

else: 
    print("lose") 
    score[1] = score[1] + 1 

print(score) # Call it after the if, elif, else