Question

# Generate a random number between 1 and 9 (including 1 and 9). Ask the user to guess the number, then tell them whether they guessed too low, too high, or exactly right. (Hint: remember to use the user input lessons from the very first exercise)

# Extras:

# Keep the game going until the user types “exit”
# Keep track of how many guesses the user has taken, and when the game ends, print this out.
import random
counter = True

tooHigh = "You've guess too high"
justRight = "You've guessed correctly!"
tooLow = "You've guessed too low"

def generatedNumber():
    genValue = random.randint(1,9)
    return genValue
def guessTheNumber():
    guessedNumber = input("Guess a number between 1 and 9: ")
    if guessedNumber in "0123456789":
        guessedNumber = int(guessedNumber)
        print(type(guessedNumber))
    else:
        guessedNumber = 0
    return guessedNumber

def makeFalse():
    counter = False

def guessesComparer(computerNumber, userNumber):
    if userNumber == 0:
        makeFalse()
    elif computerNumber == userNumber:
        print(justRight)
    elif computerNumber > userNumber:
        print(tooLow)
    elif computerNumber < userNumber:
        print(tooHigh)

def mainAction():
    computerNumber = generatedNumber()
    userNumber = guessTheNumber()
    guessesComparer(computerNumber, userNumber)

while (counter == True):
    mainAction()

我只是想知道如何获得嵌套函数来更改全局变量或者它是否可能？我想在用户输入＆＃34;退出＆＃34;时结束while循环，但我不知道如何切换＆＃34;计数器＆＃34;变量为false。我知道，如果我开始使用代码并以不同的方式执行此操作，则可以采用更简单的方法，但我只是想要变得足够好以多种方式执行此操作。

Answer 1

是的，如果在对该名称进行任何赋值之前声明global X，则可以为任何函数中的全局变量分配值，然后任何赋值X = Y而不是绑定函数local为全局赋值。

但最好从这些函数中创建一个对象，并将状态存储为实例变量而不是全局变量。

Python：嵌套函数可以更改全局变量吗？

1 个答案: