反向猜数游戏 Python

Question

所以，最近我一直在尝试编写一个反向猜数游戏，让计算机尝试猜测我想到的数字。我应该得到的输出如下所示：Enter the range: 6Think of a random number between 1 and 6 and press enter once done!Is it smaller than 4, 'y' or 'n'?yIs it smaller than 2, 'y' or 'n'?nIs it smaller than 3, 'y' or 'n'?yWonderful it took me 3 questions to find out that you had the number 2 in mind!到目前为止，这些是我的代码：import randommaxNum = int(input('Enter the range: '))input('Think of a random number between 1 and ' + str(maxNum) + ' and press enter once done!')lowBound = 1highBound = maxNumresponse = ''noOfGuesses = 0numberHasBeenGuessed = FalserandomNumber = random.randint(lowBound,highBound)while not numberHasBeenGuessed:    noOfGuesses += 1    response = input("Is it smaller than " + str(randomNumber) + ", 'y' or 'n'?")    if response == "n" or response == 'N':        lowBound = randomNumber + 1           randomNumber = random.randint(lowBound,highBound)    elif response == "y" or response == "Y":        highBound = randomNumber - 1        randomNumber = random.randint(lowBound,highBound)    else:        print ('Please only type y, Y, n or N as responses')        numberHasBeenGuessed = True        print('Wonderful it took me ' + str(noOfGuesses) + ' attempts to guess that you had the number ' + str(randomNumber) + ' in mind')主要算法正在工作，但不知怎的，当数字被“猜测”时它无法检测到它......有人知道为什么吗？我将非常感谢您的帮助:)

Answer 1

这是一个使用的版本try/except

import random

maxNum = int(input('Enter the range: '))

input('Think of a random number between 1 and ' + str(maxNum) + ' and press enter once done!')

lowBound = 1

highBound = maxNum

response = ''

noOfGuesses = 0

numberHasBeenGuessed = False

randomNumber = random.randint(lowBound,highBound)

while not numberHasBeenGuessed:

        noOfGuesses += 1

        response = input("Is it smaller than " + str(randomNumber) + ", 'y', 'n', or 'Thats it'?")

        if response == "n" or response == 'N':

            lowBound = randomNumber + 1

            

            try:

                randomNumber = random.randint(lowBound,highBound)

            except ValueError:

                numberHasBeenGuessed = True

        elif response == "y" or response == "Y":

            highBound = randomNumber - 1

            try:

                randomNumber = random.randint(lowBound,highBound)

            except ValueError:

                numberHasBeenGuessed = True

        else:

            print ('Please only type y, Y, n or N as responses')

        

           

print('Wonderful it took me ' + str(noOfGuesses) + ' attempts to guess that you had the number ' + str(randomNumber) + ' in mind')

当它遇到 a 时ValueError，它会认为它找到了您的号码。请确保没有其他情况可能导致此代码给出错误答案，因为我显然还没有对其进行彻底测试。

您还可以将这些try/except子句放在 a 中def以使其更加紧凑，因为它们是相同的代码片段，但我不确定您的项目是否允许这样做，所以我保留了它。

Answer 2

你在numberHasBeenGuessed = Truewhile 循环之外 - 这意味着在循环结束之前它不能被调用 - 所以它将永远卡住。

当它达到你的猜测时 - 假设我有数字 7。你的程序会询问“7 比 7 小还是大？” 显然这是没有意义的，7就是7。7 不小于也不大于 7：你的程序知道这一点并崩溃。所以你需要引入一个新的用户输入选项：

    import random

    

    maxNum = int(input('Enter the range: '))

    input('Think of a random number between 1 and ' + str(maxNum) + ' and press enter once done!')

    lowBound = 1

    highBound = maxNum

    response = ''

    noOfGuesses = 0

    numberHasBeenGuessed = False

    randomNumber = random.randint(lowBound,highBound)

    

    while not numberHasBeenGuessed:

        noOfGuesses += 1

        response = input("Is it smaller than " + str(randomNumber) + ", 'y', 'n', or 'Thats it'?")

        if response == "n" or response == 'N':

            lowBound = randomNumber + 1   

            randomNumber = random.randint(lowBound,highBound)

            print(randomNumber)

        elif response == "y" or response == "Y":

            highBound = randomNumber - 1

            randomNumber = random.randint(lowBound,highBound)

            print(randomNumber)

        elif response == "Thats it": #New input option 'Thats it'

            numberHasBeenGuessed = True #Stops the while loop

        else:

            print ('Please only type y, Y, n or N as responses')

               

    print('Wonderful it took me ' + str(noOfGuesses) + ' attempts to guess that you had the number ' + str(randomNumber) + ' in mind')

现在，当您的数字被猜到时，您可以输入“就是这样”，程序就会以您想要的输出结束。（当然，将输入和内容更改为您想要的）

最后的程序员提示：用主题标签评论你的代码，这样你就知道（以及其他人的帮助）每个部分的作用。