Question

我正在创建一个问答代码，我需要问题函数来返回resposta_usuario值，但这没有发生

问答游戏代码

perguntas = open('perguntas.txt','r')
respostas = open('respostas.txt','r')
respostas_linha = respostas.readlines()
c = 0
score = 0


def pergunta():
    #Mostra a pergunta guardada no perguntas.txt e retorna a resposta do usuário
    for linhas in perguntas:
        if linhas == '\n':
            resposta_usuario = input('Qual sua resposta?: ')
            return resposta_usuario     <------ THE PROBLEM IS HERE 
        else:
           print (linhas)


def verificar(resposta_usuario):
    if resposta_usuario == respostas_linha[c]:
        print('Resposta Correta')
        c=+c
        score = score + 10
        pergunta()
    else:
        print('Fim de jogo!')
        print('Tente novamente')



pergunta()
print(resposta_usuario)

我期望resposta_usuario值的输出，但实际输出是

NameError：名称'resposta_usuario'未定义

Answer 1

您在函数内部创建了变量，因此它的作用域仅在函数内部可用，函数外部的代码看不到它或nae引用它。您的函数返回值，但是您不存储返回值。因此，要么打印将打印返回值的函数调用

print(pergunta())

或将函数的返回值存储在函数外部作用域中的变量中

resposta_usuario = pergunta()
print(resposta_usuario)

Answer 2

您需要打印函数的返回值。 module.exports = { dotenv: resolveApp('.env'), appPath: resolveApp('.'), appBuild: resolveApp('build'), appPublic: resolveApp('public'), appHtml: resolveApp('public/mynewawesomeindexfile.html'), //Change only this line appIndexJs: resolveModule(resolveApp, 'src/index'), appPackageJson: resolveApp('package.json'), appSrc: resolveApp('src'), appTsConfig: resolveApp('tsconfig.json'), appJsConfig: resolveApp('jsconfig.json'), yarnLockFile: resolveApp('yarn.lock'), testsSetup: resolveModule(resolveApp, 'src/setupTests'), proxySetup: resolveApp('src/setupProxy.js'), appNodeModules: resolveApp('node_modules'), publicUrl: getPublicUrl(resolveApp('package.json')), servedPath: getServedPath(resolveApp('package.json')), };在您使用的范围内未定义：

resposta_usuario

函数未返回变量值

2 个答案: