学习Python数字游戏

Question

我是Python新手。我正在尝试编写一个小游戏，要求最终用户从1到1000中选择一个数字，并将其保存在他们的头脑中（该数字未提供给程序）。程序应该能够在10次猜测中找到数字。就像我通常做的那样，我走错了路。我的程序大部分时间都在工作，但有时在10次猜测中找不到数字。这是我的密码：

# script to guess a user's number between 1 and 1000 within 10 guesses

# import random so we can use it to generate random numbers
from random import randint

# Variables
lowerBound = 1
upperBound = 1000
numGuesses = 1
myGuess = 500
failed = False

# Welcome Message
print("#####################################################################################################"
      "\n#                                                                                                   #"
      "\n#   Please think of a number between 1 and 1000.  I will attempt to guess the number in 10 tries.   #"
      "\n#                                                                                                   #"
      "\n#####################################################################################################")

while numGuesses <= 10:

    # if the lower and upper bounds match we've found the number
    if lowerBound == upperBound:
        print(f"\nYour number is {str(lowerBound)}.  It took me '{str(numGuesses)} guesses!")
        break

    print(f"\nIs the number {str(myGuess)}?  If correct, type CORRECT.  If low, type LOW.  If high, type HIGH.")
    # uncomment for var output
    # print(f"\nGuesses = {str(numGuesses)}\nLower bound = {str(lowerBound)}\nUpper bound = {str(upperBound)}")
    userFeedback = input("\nResponse: ").upper()

    if userFeedback == 'HIGH':
        print(f"\nGuess #{str(numGuesses)} was too high")
        if numGuesses == 10:
            failed = True
            break
        upperBound = myGuess - 1
        myGuess = randint(lowerBound, upperBound)
    elif userFeedback == 'LOW':
        print(f"\nGuess #{str(numGuesses)} was too low")
        if numGuesses == 10:
            failed = True
            break
        lowerBound = myGuess + 1
        myGuess = randint(lowerBound, upperBound)
    elif userFeedback == 'CORRECT':
        print(f"\nYour number is {str(myGuess)}!  It took me {str(numGuesses)} guesses!")
        break

    numGuesses += 1

if failed:
    print(f"\nMy final guess of {str(myGuess)} was not correct.  I wasn't able to guess your number in 10 tries.")

很明显（现在）我减少数字的方法行不通。我原本想问它是不是500，如果更低，问它是不是250。如果再次降低，询问是否为125，依此类推。如果更高，询问是否为750875，以此类推。这是正确的方法吗

我想这件事想得太久了，我相信我的头脑已经成熟了。谢谢

Answer 1

myGuess = int(math.ceil((myGuess) / 2))

这是不对的

如果您已将范围缩小到6和8之间，并且您正在猜测7，那么之前的代码将调用4，而这超出了您的搜索范围

if userFeedback == 'HIGH':
    print(f"\nGuess #{numGuesses} was too high")
    upperBound = myGuess - 1
elif userFeedback == 'LOW':
    print(f"\nGuess #{numGuesses} was too low")
    lowerBound = myGuess + 1
myGuess = int(lowerBound + ((upperBound - lowerBound) / 2))

Answer 2

我已经更新了我的代码，我想我已经做到了。谢谢你的提示

# script to guess a number between 1 and 1000 within 10 guesses

# Variables
lowerBound = 1
upperBound = 1000
numGuesses = 1
myGuess = 500

# Welcome Message
print("#####################################################################################################"
      "\n#                                                                                                   #"
      "\n#   Please think of a number between 1 and 1000.  I will attempt to guess the number in 10 tries.   #"
      "\n#                                                                                                   #"
      "\n#####################################################################################################")

while numGuesses <= 10:

    # uncomment next line for var output
    # print(f"\nGuesses = {numGuesses}\nLower bound = {lowerBound}\nUpper bound = {upperBound}")

    print(f"\nIs the number {myGuess}?  If correct, type CORRECT.  If low, type LOW.  If high, type HIGH.")
    userFeedback = input("\nResponse: ").upper()

    if userFeedback == 'HIGH':
        print(f"\nGuess #{numGuesses} was too high")
        upperBound = myGuess
        myGuess = (lowerBound + myGuess) // 2
    elif userFeedback == 'LOW':
        print(f"\nGuess #{numGuesses} was too low")
        lowerBound = myGuess
        myGuess = (upperBound + myGuess + 1) // 2
    elif userFeedback == 'CORRECT':
        print(f"\nYour number is {myGuess}!  It took me {numGuesses} guesses!")
        break

    numGuesses += 1