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: 6

Think of a random number between 1 and 6 and press enter once done!

Is it smaller than 4, 'y' or 'n'?y

Is it smaller than 2, 'y' or 'n'?n

Is it smaller than 3, 'y' or 'n'?y

Wonderful 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 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' 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/exceptimport 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', '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。