Question

我已经看过很多if语句和while循环问题，但是没有发现任何与我的问题有关的问题。在学校，我们被挑战做一个猜谜游戏，但计算机不得不猜测我们的号码。老师给了我们答案，但我并不高兴，决定按照我的方式去做。在尝试这样做时，发生了错误。

我的错误是：

Guess2 = str(random.randint(Guess2, Number+1))
File "C:\Users\Diogo Melim\AppData\Local\Programs\Python\Python36\lib\random.py", 
line 220, in randint
    return self.randrange(a, b+1)
  File "C:\Users\Diogo Melim\AppData\Local\Programs\Python\Python36\lib\random.py", line 198, in randrange
raise ValueError("empty range for randrange() (%d,%d, %d)" % (istart, istop, width))
ValueError: empty range for randrange() (188315,32, -188283)

import random

def guessing_game():

  Number = int(input())
  Number2 = str(Number)
  Guess = int(random.randint(1, 1000000))
  Guess2 =  str(Guess)

  while Guess2 != Number2 :

      Number2
      print( "My guess is " + Guess2)

      if Guess2 > Number2:
          print ("Wrong, " + Guess2)
          Guess2 = int(Guess2)
          Guess2 = str(random.randint(Number-1, Guess2))
          print("I'll try again, it's less") 
      elif Guess2 < Number2:
          print ("Errei, " + Guess2)
          Guess2 = int(Guess2)
          Guess2 = str(random.randint(Guess2, Number+1))
          print("I'll try again, it's bigger")
      elif Guess2 == Number2 :
          print( "Got it, the value was: " + Guess2)
          break
  else :
      print( "Got it! The value was:  " + Number2)
      exit

guessing_game()

Answer 1

您的基本逻辑问题是比较字符串值而不是数值。你不能在一对字符串上合理地调用 randint 。

字符串逐个字符排序。例如，“2”大于“10”，因为它看起来没有超过第一个差异：“2”对比“1”。这会使您的猜测值超出范围，最终会使您的上下猜测边界反转。

代码中唯一需要字符串的地方就是获取输入。之后，只需使用整数值：

import random

def guessing_game():

  Number = int(input())
  Guess = int(random.randint(1, 1000000))

  while Guess != Number :

      print( "My guess is " + Guess)

      if Guess > Number:
          print ("Wrong, " + Guess)
          Guess = int(Guess)
          Guess = random.randint(Number-1, Guess)
          print("I'll try again, it's less") 
      elif Guess < Number:
          print ("Errei, " + Guess)
          Guess = int(Guess)
          Guess = random.randint(Guess, Number+1)
          print("I'll try again, it's bigger")
      elif Guess == Number :
          print( "Got it, the value was: " + Guess)
          break
  else :
      print( "Got it! The value was:  " + Number)
      exit

guessing_game()

Python猜测游戏，ValueError：randrange（）的空范围

1 个答案: