python银行系统

Python银行系统是一个用Python编写的软件系统，用于管理银行的各种业务和操作。它可以处理客户账户、存款、取款、转账、贷款、利息计算等功能。以下是一个简单的Python银行系统的示例：

class Bank:
    def __init__(self, name):
        self.name = name
        self.accounts = {}

    def create_account(self, account_number, initial_balance):
        if account_number in self.accounts:
            print("Account already exists.")
        else:
            self.accounts[account_number] = initial_balance
            print("Account created successfully.")

    def deposit(self, account_number, amount):
        if account_number in self.accounts:
            self.accounts[account_number] += amount
            print("Deposit successful.")
        else:
            print("Account does not exist.")

    def withdraw(self, account_number, amount):
        if account_number in self.accounts:
            if self.accounts[account_number] >= amount:
                self.accounts[account_number] -= amount
                print("Withdrawal successful.")
            else:
                print("Insufficient balance.")
        else:
            print("Account does not exist.")

    def transfer(self, from_account, to_account, amount):
        if from_account in self.accounts and to_account in self.accounts:
            if self.accounts[from_account] >= amount:
                self.accounts[from_account] -= amount
                self.accounts[to_account] += amount
                print("Transfer successful.")
            else:
                print("Insufficient balance.")
        else:
            print("One or both accounts do not exist.")

    def get_balance(self, account_number):
        if account_number in self.accounts:
            print("Account balance:", self.accounts[account_number])
        else:
            print("Account does not exist.")

# 创建银行对象
bank = Bank("ABC Bank")

# 创建账户
bank.create_account("1234567890", 1000)

# 存款
bank.deposit("1234567890", 500)

# 取款
bank.withdraw("1234567890", 200)

# 转账
bank.transfer("1234567890", "0987654321", 300)

# 查询余额
bank.get_balance("1234567890")
bank.get_balance("0987654321")

这个示例展示了一个简单的Python银行系统，包括创建账户、存款、取款、转账和查询余额等功能。你可以根据实际需求进行扩展和修改。