python信用卡操作

import datetime

user_dict = dict()  # 用来存储用户的账号


# 注册系统：
def registered():
    try:
        print('welcome to register  ATM system')
        registered_user = input('请输入您的账号:')
        registered_pwd = int(input('请输入您密码:'))
        user_dict['user'] = registered_user
        user_dict['pwd'] = registered_pwd
        print('你的账号【{}】已注册成功，欢迎您登陆'.format(registered_user))
    except Exception as e:
        print(e)


# 登陆系统：login
def login():
    try:
        print('welcome to login  ATM system')
        login_user = input('请输入您的账号:')
        login_pwd = int(input('请输入您密码:'))
        if login_user == user_dict['user'] and login_pwd == user_dict['pwd']:
            print('welcome to my ATM system:{}'.format(login_user))
            user_money = int(input('请输入您的金额:'))
            user_dict['money'] = user_money
        elif login_user != user_dict['user'] or login_pwd != user_dict['pwd']:
            print('你的登陆账号或密码有误，请检查后重新登陆')
        return user_dict['user'], user_dict['money']
    except Exception as e:
        print(e)


def show_menu(login_user, user_money):
    while True:
        try:
            print('1.账户信息')
            print('2.取款')
            print('3.还款')
            print('4.转账')
            print('5.账单')
            print('6.退出')
            user_choice = int(input('请输入您的选择:'))
            if user_choice == 1:
                print('账户:{} 金额:{}'.format(login_user, user_money))
                time1 = datetime.datetime.today()
                time1 = time1.strftime("%Y/%m/%d %H:%M:%S")
            elif user_choice == 2:
                out_money = int(input('请输入您要提现的金额:'))
                time2 = datetime.datetime.today()
                time2 = time2.strftime("%Y/%m/%d %H:%M:%S")
                if out_money > user_money:
                    print('对不起，余额不足')
                else:
                    user_money = user_money - out_money
                    print('提现{}成功,余额{}'.format(out_money, user_money))
            elif user_choice == 3:
                in_money = int(input('请输入您要还款的额度:'))
                user_money = user_money + in_money
                time3 = datetime.datetime.today()
                time3 = time3.strftime("%Y/%m/%d %H:%M:%S")
                print('还款:{} 余额{}'.format(in_money, user_money))
            elif user_choice == 4:
                Transfer_user = input('请输入您要转账的用户名:')
                Transfer_money = int(input('请输入您要转账的金额:'))
                user_money = user_money - Transfer_money
                time4 = datetime.datetime.today()
                time4 = time4.strftime("%Y/%m/%d %H:%M:%S")
                print('{}转账成功，转账金额{}，您的余额为{}'.format(Transfer_user, Transfer_money, user_money))
            elif user_choice == 5:
                print('您的账单信息如下:')
                print('您的余额是:{},time{}'.format(user_money, time1))
                print('您的提现额是:{},time{}'.format(out_money, time2))
                print('您的还款额是:{},time{}'.format(in_money, time3))
                print('您的转账额是:{},time{}'.format(Transfer_money, time4))
            elif user_choice == 6:
                print('欢迎下次光临本系统')
                exit()
        except Exception as e:
            print(e)


if __name__ == '__main__':
    registered()
    user_dict['login_user'], user_dict['money'] = login()
    show_menu(user_dict['login_user'], user_dict['money'])

原文链接:https://www.cnblogs.com/victorstudy/p/11098476.html
如有疑问请与原作者联系

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