Question

以下是有问题的功能：

def ATM():
    global mode
    pinNum = input('Please enter your 4 digit secret code: ')
    userBalance = float(dict2[pinNum])
    while mode == 0:
        if pinNum in dict1:
            greet = input('Hello {}, please enter 1 to check your balance, 2 to make a withdrawal, 3 to make a deposit, or 4 to end your session: '.format(dict1[pinNum]))
        if greet == '1':
            balance(userBalance)
        elif greet == '2':
            withdraw(userBalance)
        elif greet == '3':
            deposit(userBalance)
        elif greet == '4':
            mode = 1

def balance(userBalance):
    print('Your current balance is {}.'.format(userBalance))


def deposit(userBalance):
    amount = input('Please enter the amount you wish to be deposited: ')
    userBalance += float(amount)
    return userBalance


def withdraw(userBalance):
    amount = input('Please enter the amount you wish to withdraw" ')
    if userBalance - float(amount) < 0:
             print('You do not have sufficient funds.')
    else:
        userBalance -= float(amount)

当我在ATM（）中调用存款或取款功能时，我无法调整余额。我想我可能无法在存款和取款功能中正确返回数据。该程序模拟ATM供参考，dict1和dict2在函数外定义。任何帮助表示赞赏。

Answer 1

我认为这可以帮到你：

def ATM():
    global mode
    pinNum = input('Please enter your 4 digit secret code: ')
    userBalance = float(dict2[pinNum])
    actions = {
        '1': balance,
        '2': withdraw,
        '3': deposit
    }
    while mode == 0:
        if pinNum in dict1:
            greet = input('Hello {}, please enter 1 to check your balance, 2 to make a withdrawal, 3 to make a deposit, or 4 to end your session: '.format(dict1[pinNum]))
        if greet == '4':
            break
        else:
            userBalance = actions.get(greet)(userBalance) or userBalance

def balance(userBalance):
    print('Your current balance is {}.'.format(userBalance))


def deposit(userBalance):
    amount = input('Please enter the amount you wish to be deposited: ')
    userBalance += float(amount)
    return userBalance


def withdraw(userBalance):
    amount = input('Please enter the amount you wish to withdraw" ')
    if userBalance - float(amount) < 0:
             print('You do not have sufficient funds.')
    else:
        userBalance -= float(amount)
    return userBalance

在Python中将变量从一个函数修改为另一个函数

1 个答案: