编写代码1、内容:综合应用Python程序设计知识，设计与实现一款简单的手机银行系统。具体功能要求可参考以下几点: (1)登录功能，使用学号和密码登录，密码连续输错三次则账号冻结; (2)具有账户查询功能:登记账户各项信息，包括:姓名、余额，近一个月的支出和收入，账户挂失; (3)具有存款功能:可按不同货币存款，例如人民币、美元、欧元等; (4)具有取款功能:可快速取1000、2000、3000和其他金额等;(5)具有转账汇款功能:银行账号转账、手机号转账，转账记录，转账限额设置等; (6)具有投资理财功能，如基金投资、购买理财产品、购买个人养 老金; (7)期待同学们设计与实现更多其他功能: (8)系统功能完整，程序运行稳定，打包成独立的exe 文件

以下是一个较为完整的手机银行系统的 Python 代码示例，包含登录、账户查询、存款、取款、转账汇款、投资理财等多个功能：

# 定义账户类
class Account:
    def __init__(self, id, password, name, balance, currency):
        self.id = id
        self.password = password
        self.name = name
        self.balance = balance
        self.currency = currency
        self.last_month_income = 0
        self.last_month_expense = 0
        self.is_lost = False
    
    # 存款
    def deposit(self, amount):
        self.balance += amount
        print('成功存款', amount, self.currency, '，当前余额为', self.balance, self.currency, '。')
    
    # 取款
    def withdraw(self, amount):
        if self.balance >= amount:
            self.balance -= amount
            print('成功取款', amount, self.currency, '，当前余额为', self.balance, self.currency, '。')
        else:
            print('余额不足，取款失败。')
    
    # 转账
    def transfer(self, account, amount):
        if self.balance >= amount:
            self.balance -= amount
            account.balance += amount
            print('成功向', account.name, '(', account.id, ') 转账', amount, self.currency, '，当前余额为', self.balance, self.currency, '。')
        else:
            print('余额不足，转账失败。')

# 定义投资产品类
class InvestmentProduct:
    def __init__(self, name, price, expected_return):
        self.name = name
        self.price = price
        self.expected_return = expected_return
    
    # 购买
    def buy(self, account):
        if account.balance >= self.price:
            account.balance -= self.price
            print('成功购买', self.name, '，当前余额为', account.balance, account.currency, '。')
        else:
            print('余额不足，购买失败。')
    
    # 预计收益
    def get_expected_return(self):
        return self.price * self.expected_return

# 定义银行类
class Bank:
    def __init__(self):
        self.accounts = []
        self.login_id = None
        self.login_password = None
        self.login_attempts = 0
    
    # 注册账户
    def register(self, id, password, name, balance, currency):
        self.accounts.append(Account(id, password, name, balance, currency))
        print('成功注册账户', id, '，当前账户数量为', len(self.accounts), '。')
    
    # 登录
    def login(self, id, password):
        for account in self.accounts:
            if account.id == id:
                if account.password == password:
                    if account.is_lost:
                        print('账户已挂失，无法登录。')
                        return
                    self.login_id = id
                    self.login_password = password
                    self.login_attempts = 0
                    print('成功登录账户', id, '。')
                    return
                else:
                    self.login_attempts += 1
                    if self.login_attempts >= 3:
                        print('密码错误次数超过3次，账户已被冻结。')
                        account.is_lost = True
                        return
                    else:
                        print('密码错误，还有', 3 - self.login_attempts, '次机会。')
                        return
        print('账户不存在。')
    
    # 账户查询
    def check_balance(self):
        for account in self.accounts:
            if account.id == self.login_id:
                print('账户信息如下：')
                print('姓名：', account.name)
                print('余额：', account.balance, account.currency)
                print('上个月收入：', account.last_month_income, account.currency)
                print('上个月支出：', account.last_month_expense, account.currency)
                print('账户状态：', '挂失' if account.is_lost else '正常')
                return
        print('未登录或账户不存在。')
    
    # 存款
    def deposit(self, amount, currency):
        for account in self.accounts:
            if account.id == self.login_id and account.currency == currency:
                account.deposit(amount)
                return
        print('未登录或账户不存在或货币类型不正确。')
    
    # 取款
    def withdraw(self, amount):
        for account in self.accounts:
            if account.id == self.login_id:
                account.withdraw(amount)
                return
        print('未登录或账户不存在。')
    
    # 转账
    def transfer(self, to_id, amount):
        for account in self.accounts:
            if account.id == self.login_id:
                for to_account in self.accounts:
                    if to_account.id == to_id:
                        account.transfer(to_account, amount)
                        return
                print('目标账户不存在。')
                return
        print('未登录或账户不存在。')
    
    # 购买投资产品
    def buy_investment_product(self, product_name):
        for account in self.accounts:
            if account.id == self.login_id:
                for product in investment_products:
                    if product.name == product_name:
                        product.buy(account)
                        return
                print('投资产品不存在。')
                return
        print('未登录或账户不存在。')
    
    # 查询投资产品预计收益
    def check_investment_product_return(self, product_name):
        for product in investment_products:
            if product.name == product_name:
                print('预计收益为', product.get_expected_return(), product.currency, '。')
                return
        print('投资产品不存在。')

# 定义投资产品列表
investment_products = [
    InvestmentProduct('基金A', 1000, 0.05),
    InvestmentProduct('基金B', 2000, 0.08),
    InvestmentProduct('理财产品A', 5000, 0.1),
    InvestmentProduct('个人养老金A', 10000, 0.15)
]

# 测试代码
bank = Bank()
bank.register('123456', '123456', '张三', 1000, '人民币')
bank.login('123456', '654321') # 密码错误
bank.login('123456', '123456') # 成功登录
bank.check_balance() # 显示账户信息
bank.deposit(1000, '人民币') # 存入1000元人民币
bank.deposit(100, '美元') # 存入100美元，货币类型不正确
bank.withdraw(500) # 取出500元人民币
bank.transfer('654321', 300) # 转账300元人民币给账户654321
bank.transfer('654321', 8000) # 余额不足，转账失败
bank.buy_investment_product('基金A') # 购买基金A
bank.check_investment_product_return('基金A') # 查询基金A预计收益
bank.check_investment_product_return('基金C') # 投资产品不存在
bank.check_balance() # 显示账户信息

以上代码示例只是一个简单的模拟，具体的实现可能还需要根据实际情况进行调整和扩展。同时，如果需要将程序打包成独立的 exe 文件，可以使用 PyInstaller 等工具实现。