Python基础项目实践之：面向对象方法实现模拟银行管理系统

Python课堂基础实践系列：

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Python基础项目实践之：面向对象方法模拟简单计算器

Python基础项目实践之：面向对象方法实现模拟银行管理系统

面向对象方法实现模拟银行管理系统
代码如下：

import prettytable as pt   # 表格形式显示
import timebank_log = []    # 初始化银行交易日志class Bank:'''银行类'''def __init__(self):"""初始化"""self.money = 0    # 封装和初始化金额self.bank_log = bank_logdef deposit(self):"""存款"""amount = float(input("请输入存款金额： "))self.money += amountself.write_log(amount, '转入')def withdrawl(self):"""取款"""amount = float(input("请输入取款金额： "))if amount > self.money:print("余额不足")else:self.money -= amountself.write_log(amount, "消费")def transaction_log(self):"""打印交易日志"""tb = pt.PrettyTable()tb.field_names = ['交易日期', '摘要', '金额', '币种', '余额']  # 设置表头for info in self.bank_log:# 判断转入还是消费，为金额前添加“+” 或“-”if info[1] == '转入':amout = "+{}".format(info[2])else:amout = "-{}".format(info[2])tb.add_row([info[0], info[1], amout, '人民币', info[3]])print(tb)def write_log(self, amount, handle):"""写入日志"""# 按照指定形式获取时间creat_time = time.strftime("%Y-%m-%d %H:%M:%S", time.localtime(time.time()))data = [creat_time, handle, amount, self.money]  # 组装列表self.bank_log.append(data)  # 写入日志信息def display():"""显示菜单栏"""menu = """====================银行账户资金交易管理====================0：退出1：存款2：取款3：打印交易详情=========================================================="""print(menu)if __name__ == '__main__':display()  # 显示菜单account = Bank()  # 创建对象while True:choice = int(input("请输入您的选择： "))if choice == 0:exit(0)print("退出系统")elif choice == 1:flag = Truewhile flag:# deposit_money = float(input('存款金额： '))account.deposit()flag = True if input("是否继续存款（yes/no）: ").lower() == "yes" else Falseelif choice == 2:flag = Truewhile flag:# wd_money = float(input("取款金额： "))account.withdrawl()flag = True if input("是否继续取款（yes/no）:").lower() == 'yes' else Falseelif choice == 3:account.transaction_log()else:print("请重新选择正确的序号")
import prettytable as pt   # 表格形式显示
import timebank_log = []    # 初始化银行交易日志class Bank:'''银行类'''def __init__(self):"""初始化"""self.money = 0    # 封装和初始化金额self.bank_log = bank_logdef deposit(self):"""存款"""amount = float(input("请输入存款金额： "))self.money += amountself.write_log(amount, '转入')def withdrawl(self):"""取款"""amount = float(input("请输入取款金额： "))if amount > self.money:print("余额不足")else:self.money -= amountself.write_log(amount, "消费")def transaction_log(self):"""打印交易日志"""tb = pt.PrettyTable()tb.field_names = ['交易日期', '摘要', '金额', '币种', '余额']  # 设置表头for info in self.bank_log:# 判断转入还是消费，为金额前添加“+” 或“-”if info[1] == '转入':amout = "+{}".format(info[2])else:amout = "-{}".format(info[2])tb.add_row([info[0], info[1], amout, '人民币', info[3]])print(tb)def write_log(self, amount, handle):"""写入日志"""# 按照指定形式获取时间creat_time = time.strftime("%Y-%m-%d %H:%M:%S", time.localtime(time.time()))data = [creat_time, handle, amount, self.money]  # 组装列表self.bank_log.append(data)  # 写入日志信息def display():"""显示菜单栏"""menu = """====================银行账户资金交易管理====================0：退出1：存款2：取款3：打印交易详情=========================================================="""print(menu)if __name__ == '__main__':display()  # 显示菜单account = Bank()  # 创建对象while True:choice = int(input("请输入您的选择： "))if choice == 0:exit(0)print("退出系统")elif choice == 1:flag = Truewhile flag:# deposit_money = float(input('存款金额： '))account.deposit()flag = True if input("是否继续存款（yes/no）: ").lower() == "yes" else Falseelif choice == 2:flag = Truewhile flag:# wd_money = float(input("取款金额： "))account.withdrawl()flag = True if input("是否继续取款（yes/no）:").lower() == 'yes' else Falseelif choice == 3:account.transaction_log()else:print("请重新选择正确的序号")
import prettytable as pt   # 表格形式显示
import timebank_log = []    # 初始化银行交易日志class Bank:'''银行类'''def __init__(self):"""初始化"""self.money = 0    # 封装和初始化金额self.bank_log = bank_logdef deposit(self):"""存款"""amount = float(input("请输入存款金额： "))self.money += amountself.write_log(amount, '转入')def withdrawl(self):"""取款"""amount = float(input("请输入取款金额： "))if amount > self.money:print("余额不足")else:self.money -= amountself.write_log(amount, "消费")def transaction_log(self):"""打印交易日志"""tb = pt.PrettyTable()tb.field_names = ['交易日期', '摘要', '金额', '币种', '余额']  # 设置表头for info in self.bank_log:# 判断转入还是消费，为金额前添加“+” 或“-”if info[1] == '转入':amout = "+{}".format(info[2])else:amout = "-{}".format(info[2])tb.add_row([info[0], info[1], amout, '人民币', info[3]])print(tb)def write_log(self, amount, handle):"""写入日志"""# 按照指定形式获取时间creat_time = time.strftime("%Y-%m-%d %H:%M:%S", time.localtime(time.time()))data = [creat_time, handle, amount, self.money]  # 组装列表self.bank_log.append(data)  # 写入日志信息def display():"""显示菜单栏"""menu = """====================银行账户资金交易管理====================0：退出1：存款2：取款3：打印交易详情=========================================================="""print(menu)if __name__ == '__main__':display()  # 显示菜单account = Bank()  # 创建对象while True:choice = int(input("请输入您的选择： "))if choice == 0:exit(0)print("退出系统")elif choice == 1:flag = Truewhile flag:# deposit_money = float(input('存款金额： '))account.deposit()flag = True if input("是否继续存款（yes/no）: ").lower() == "yes" else Falseelif choice == 2:flag = Truewhile flag:# wd_money = float(input("取款金额： "))account.withdrawl()flag = True if input("是否继续取款（yes/no）:").lower() == 'yes' else Falseelif choice == 3:account.transaction_log()else:print("请重新选择正确的序号")