python名称错误：class"；银行帐户“；没有定义

我有一个python代码，收到以下错误：

Traceback (most recent call last):
File "C:/Users/SUVI/Desktop/SUVIwork/BankAccount.py", line 1, in <module>
class BankAccount:
File "C:/Users/SUVI/Desktop/SUVIwork/BankAccount.py", line 26, in     BankAccount
myAccount =BankAccount(00000, "XXXXXX")
NameError: name 'BankAccount' is not defined

在创建类的实例之前，我已经定义了该类。

---

为什么找不到我的班？我真的很感谢你的意见

您的代码有几个问题

首先您的缩进已关闭，请查看此以了解正确的缩进

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

    def  displayBalance(self):
        print " The account balance is:", self.balance

    def deposit(self, amount):
        self.balance = self.balance + amount
        print "You deposited", amount
        print " The new balance is :", self.balance

    def withdraw(self, amount):
        if self.balance >= amount:
            self.balance = self.balance - amount
            print "You withdrew", amount
            print " The new balance is:", self.balance

        else:
            print "You tried to withdraw", amount
            print " The account balance is:", self.balance
            print " Withdrawal denied. No enough funds."

秒：
您在存款中有输入错误

self.banlance = self.balance + amount

应该是

self.balance = self.balance + amount

第三
你有一个打字错误

nyAccount.withdraw(57.55)

应该是

myAccount.withdraw(57.55)

第四
您使用的功能名称样式不正确

displayball

应命名为

display\u balance

请参阅本手册中的官方命名约定

一点建议：
您似乎正在编辑器中编写代码。
也许您应该研究一些IDE，比如pycharm社区版。

---

这些工具可以帮助您处理诸如打字错误和缩进之类的小事故。

我在Windows8下使用了python2.7，tks！您是否正确复制和粘贴缩进？看起来不对劲。您这里还有一个输入错误：

self.banlance=self.balance+amount

请将nyAccount.draw（57.55）更改为MyAccount.draw（57.55）。。它没有给出任何错误。根据回溯

myAccount=BankAccount（00000，“XXXXXX”）

是

类BankAccount

定义的一部分，因此给出了错误。你应该适当地缩进你的程序

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

    def  displayBalance(self):
        print " The account balance is:", self.balance

    def deposit(self, amount):
        self.balance = self.balance + amount
        print "You deposited", amount
        print " The new balance is :", self.balance

    def withdraw(self, amount):
        if self.balance >= amount:
            self.balance = self.balance - amount
            print "You withdrew", amount
            print " The new balance is:", self.balance

        else:
            print "You tried to withdraw", amount
            print " The account balance is:", self.balance
            print " Withdrawal denied. No enough funds."