Question

我写了下面的代码但是当我尝试运行它时，我得到一个文件“C：\ Users \ Moses \ Desktop \ test.py”，第4行定金（个体经营）： ^ IndentationError：预计会出现缩进块错误。我需要帮助。

class BankAccount(object):
def withdraw(self):
    pass
def deposit(self):
    pass

类SavingsAccount（BankAccount）：

def __init__(self,  balance=500.0):
self.balance = balance

def deposit(self, deposit_amount):
self.balance += deposit_amount
  return self.balance

  if deposit_amount < 0:
    raise RuntimeError('Invalid deposit amount.')

def withdraw(self, withdraw_amount):   
self.balance -= withdraw_amount
  return self.balance

  if self.balance < 500:
    raise RuntimeError('Cannot withdraw beyond the minimum account balance')
  return self.balance

  if withdraw_amount > self.balance:
    raise RuntimeError('Cannot withdraw beyond the current account balance')
  return self.balance

  if withdraw_amount < 0:
    raise RuntimeError('Invalid withdraw amount')

类CurrentAmount（BankAccount）： def init （self，balance = 0.0）： self.balance = balance

def deposit(self,deposit_amount)
self.balance += deposit_amount
  return self.balance

  if amount < 0:
    raise RuntimeError('Invalid deposit amount.')
  return self.balance


def withdraw(self, withdraw_amount):   
   self.balance -= withdraw_amount
  return self.balance

  if withdwa_amount < 0:
    raise RuntimeError('Invalid withdraw amount')
  return self.balance

  if withdwa_amount > self.balance:
    raise RuntimeError('Cannot withdraw beyond the current account balance')
  return self.balance

我需要对缩进错误提供一点帮助，知道它是什么以及如何解决它。我是python的新手

Answer 1

这是正确的缩进和逻辑上正确的代码。在获得对社区的支持之前，您必须阅读python编码指南。

class BankAccount(object):
    def withdraw(self, withdraw_amount):
        pass

    def deposit(self, deposit_amount):
        pass


class SavingsAccount(BankAccount):
    def __init__(self,  balance=500.0):
        self.balance = balance

    def deposit(self, deposit_amount):
        if deposit_amount < 0:
            raise RuntimeError('Invalid deposit amount.')
        self.balance += deposit_amount
        return self.balance

    def withdraw(self, withdraw_amount):
        if self.balance < 500:
            raise RuntimeError('Cannot withdraw beyond the minimum account balance')

        if withdraw_amount > self.balance:
            raise RuntimeError('Cannot withdraw beyond the current account balance')

        if withdraw_amount < 0:
            raise RuntimeError('Invalid withdraw amount.')

        self.balance -= withdraw_amount
        return self.balance


class CurrentAmount(BankAccount):
    def __init__(self,  balance=0.0):
        self.balance = balance

    def deposit(self,deposit_amount):
        if deposit_amount < 0:
            raise RuntimeError('Invalid deposit amount.')

        self.balance += deposit_amount
        return self.balance

    def withdraw(self, withdraw_amount):  
        if withdraw_amount < 0:
            raise RuntimeError('Invalid withdraw amount')

        if withdraw_amount > self.balance:
         raise RuntimeError('Cannot withdraw beyond the current account balance')

        self.balance -= withdraw_amount
        return self.balance

Answer 2

你的问题在于下面的函数定义;你不能只宣告你需要给他们某种身体的空函数。

class BankAccount(object):
    def withdraw(self):
        pass
    def deposit(self):
        pass

此外，如果您直接复制粘贴代码，那么您似乎没有使用足够的空格来缩进

即。如果我复制粘贴行

def deposit(self):

它之前只有2个空格

Answer 3

Python使用缩进来表示代码块。您必须在缩进级别中保持一致。选择标签或一定数量的空格，在任何地方使用。

您还必须至少有一个声明需要阻止的语句。如果必须，请使用pass语句不执行任何操作。

class BankAccount(object):
    def withdraw(self):
        pass        # Add this

    def deposit(self):
        pass        # Add this

    def other_function(self):
        if 42 != 42:
            raise EndOfTheWorldError("what")

Answer 4

需要进行许多更改。

如果您不想定义方法，可以使用pass
退货（自我）：通
在每个if条件之后，应该有冒号:

如果self.balance＆lt; 500：

Python解决缩进错误

4 个答案: