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：logindef 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‘])

原文地址：https://www.cnblogs.com/victorstudy/p/11098476.html