while循環迭代后變量未更新

Question

該程序應該將用戶的輸入與存儲在 'n' 變量中的隨機創建的整數進行比較。 此外，一旦實現，它應該返回用戶嘗試的次數。 出於某種原因，“嘗試”變量在每次迭代后都不會增加。 我想這個問題與我的 while 循環的位置有關。

import random
import time
import sys

def number_guess():
  n = random.randint(1,75)
  attempts = 0

  print(n)
  guess = int(input('Enter an integer from 1 to 75: '))
  
  if guess == n:
    print ('You Guessed It!')
    print ('You guessed the correct number in %s attempts!!!' % (attempts)) #This line always shows '0 attempts'
    time.sleep(5)
    sys.exit()
  else:
    while guess != n:
      if guess < 1 or guess > 75:
        print ('Remember, the integer should be from 1 to 75')
        attempts += 1
        number_guess()
      else:
        print ('You Missed It')
        attempts += 1
        number_guess()

number_guess()

如您所見，我對編程很陌生。 任何更正將不勝感激。 謝謝！

Answer 1

每次您猜錯時，問題是什么，您都會重新調用number_guess ，而這又會重置attempts 。 因此，您要解決的問題是，當您再次撥打電話時，將您的嘗試號碼發送給它。 如果您不輸入數字，它將默認為 0。

import random
import time
import sys

def number_guess(attempts=0):
  n = random.randint(1,75)

  print(n)
  guess = int(input('Enter an integer from 1 to 75: '))
  
  if guess == n:
    print ('You Guessed It!')
    print ('You guessed the correct number in %s attempts!!!' % (attempts)) #This line always shows '0 attempts'
    time.sleep(5)
    sys.exit()
  else:
    while guess != n:
      if guess < 1 or guess > 75:
        print ('Remember, the integer should be from 1 to 75')
        attempts += 1
        number_guess(attempts)
      else:
        print ('You Missed It')
        attempts += 1
        number_guess(attempts)

number_guess()

Answer 2

您不需要在自身內部不斷調用 number_guess() （遞歸）。 我移動了你的 while 循環以避免這種情況。 這是一個更好的方法：

import random
import time
import sys

def number_guess():
  n = random.randint(1,75)
  attempts = 0
  guess = 0 # can be any number other than a valid guess number

  print(n)

  while guess != n:
    guess = int(input('Enter an integer from 1 to 75: '))
    
    if guess == n:
      attempts += 1 # added this to add an attempt for correct answers too
      print ('You Guessed It!')
      print ('You guessed the correct number in %s attempts!!!' % (attempts)) #This line always shows '0 attempts'
      time.sleep(5)
      sys.exit()
    else:
      if guess < 1 or guess > 75:
        print ('Remember, the integer should be from 1 to 75')
        attempts += 1
      else:
        print ('You Missed It')
        attempts += 1

number_guess()