ATM+购物车

ATM+购物车

conf 存放配置文件的文件夹

__ init __.py

settings.py

import os
BASE_PATH = os.path.dirname(os.path.dirname(__file__))
DB_PATH = os.path.join(BASE_PATH, 'db')


'''
日志配置
'''

# 定义三种日志输出格式 开始
standard_format = '[%(asctime)s][%(threadName)s:%(thread)d][task_id:%(name)s][%(filename)s:%(lineno)d]' \
                  '[%(levelname)s][%(message)s]'  # 其中name为getlogger指定的名字

simple_format = '[%(levelname)s][%(asctime)s][%(filename)s:%(lineno)d]%(message)s'

id_simple_format = '[%(levelname)s][%(asctime)s] %(message)s'

# 定义日志输出格式 结束
logfile_dir = os.path.join(BASE_PATH, 'log')  # log文件的目录

logfile_name = 'atm_shop_log.log'  # log文件名

# 如果不存在定义的日志目录就创建一个
if not os.path.isdir(logfile_dir):
    os.mkdir(logfile_dir)

# log文件的全路径
logfile_path = os.path.join(logfile_dir, logfile_name)

# log配置字典
LOGGING_DIC = {
    'version': 1,
    'disable_existing_loggers': False,
    'formatters': {
        'standard': {
            'format': standard_format
        },
        'simple': {
            'format': simple_format
        },
    },
    'filters': {},
    'handlers': {
        # 打印到终端的日志
        'console': {
            'level': 'DEBUG',
            'class': 'logging.StreamHandler',  # 打印到屏幕
            'formatter': 'simple'
        },
        # 打印到文件的日志,收集info及以上的日志
        'default': {
            'level': 'DEBUG',
            'class': 'logging.handlers.RotatingFileHandler',  # 保存到文件
            'formatter': 'standard',
            'filename': logfile_path,  # 日志文件
            'maxBytes': 1024 * 1024 * 5,  # 日志大小5M
            'backupCount': 5,
            'encoding': 'utf-8',  # 日志文件的编码，再也不用担心中文log乱码了
        },
    },
    'loggers': {
        # logging.getLogger(__name__)拿到的logger配置
        '': {
            'handlers': ['default', 'console'],  # 这里把上面定义的两个handler都加上，即log数据既写入文件又打印到屏幕
            'level': 'DEBUG',
            'propagate': True,  # 向上（更高level的logger）传递
        },
    },
}

core 存放核心代码的文件夹

__ init __ .py

src.py

from db import db_handler
from lib import common
import re
from interface import user_interface
from interface import bank_interface
from interface import shop_interface

user_info = {
    'user': None
}


# 注册功能
def register():
    while True:
        username = input('请输入用户名：').strip()
        if username == 'q':
            break
        if not re.search(u'^[_a-zA-Z0-9\u4e00-\u9fa5]+$', username):
            print('用户名中只能包含汉字，字母，数字，下划线！')
            continue
        if db_handler.check_data(username):
            print('该用户已经存在！')
            continue
        password = input('请输入密码：').strip()
        if password == 'q' or password == '':
            break
        re_password = input('请再次输入密码：').strip()
        if re_password == 'q' or re_password == '':
            break
        if password == re_password:
            msg = user_interface.register_interface(username, password)
            print(msg)
            break
        else:
            print('两次密码输入不一致')


# 登录功能
def login():
    while True:
        if user_info['user']:
            print('您已经登录，请先注销！')
            break
        username = input('请输入用户名：').strip()

        if username == 'q':
            break
        if db_handler.check_data(username):
            password = input('请输入密码：').strip()
            if password == 'q':
                break
            flag, msg = user_interface.login_interface(username, common.get_md5(password))
            if flag:
                print(msg)
                user_info['user'] = username
                break
            else:
                print(msg)
                continue
        else:
            print('该用户不存在！')
            continue


# 查看余额功能
@common.wrapper
def check_bal():
    msg = user_interface.check_bal_interface(user_info['user'])
    print(f'当前余额为{msg}!')


# 转账功能
@common.wrapper
def transfer():
    while True:
        to_user = input('请输入要转账的对象：').strip()
        if to_user == 'q':
            break
        if not db_handler.check_data(to_user):
            print('该用户不存在！')
            continue
        if to_user == user_info['user']:
            print('还想转给自己！')
            continue
        money = input('请输入要转账的金额：').strip()
        if money == 'q':
            break
        if not money.isdigit():
            print('请输入整数金额！')
            continue
        flag, msg = bank_interface.transfer_interface(user_info['user'], to_user, money)
        if flag:
            print(msg)
            break
        else:
            print(msg)
            break


# 提现功能
@common.wrapper
def withdraw():
    while True:
        money = input('请输入要提现的金额：').strip()
        if money == 'q':
            break
        if not money.isdigit():
            print('输入整数金额！')
            continue
        flag, msg = bank_interface.withdraw_interface(user_info['user'], money)
        if flag:
            print(msg)
            break
        else:
            print(msg)
            break


# 还款功能
@common.wrapper
def repay():
    while True:
        money = input('请输入要还款的金额：').strip()
        if money == 'q':
            break
        if not money.isdigit():
            print('请输入整数金额！')
            continue
        msg = bank_interface.repay_interface(user_info['user'], money)
        print(msg)
        break


# 查看购物车
@common.wrapper
def check_shop_cart():
    flag, msg = shop_interface.check_shop_cart(user_info['user'])
    if flag:
        print(msg)
    else:
        print(msg)


# 购物功能
@common.wrapper
def shopping():
    cost = 0
    shop_cart = {}
    while True:
        shop_info = [
            ['tank牌香水', 1200],
            ['tank写真集', 1],
            ['怡宝', 4],
            ['百岁山', 6],
            ['劳斯莱斯', 2400000],
        ]
        for shop_num, name_and_price in enumerate(shop_info):
            print(
                f'商品编号：{shop_num}',
                f'商品名称：{name_and_price[0]}',
                f'商品价格： {name_and_price[1]}',
            )
        choice = input('请选择商品编号：').strip()
        if choice == 'q':
            break
        if choice.isdigit() and int(choice) < len(shop_info):
            current_bal = user_interface.check_bal_interface(user_info['user'])
            shop_name, shop_price = shop_info[int(choice)]
            if current_bal >= shop_price:
                if shop_name in shop_cart:
                    shop_cart[shop_name] += 1
                else:
                    shop_cart[shop_name] = 1
                cost += shop_price
                choice1 = input('q退出，任意键继续购物').strip()
                if choice1 == 'q':
                    commit = input('是否结账："Y"or"N":').strip()
                    if commit == 'Y':
                        flag, msg = shop_interface.pay_interface(user_info['user'], cost)
                        if flag:
                            print(msg)
                            break
                        else:
                            print(msg)
                            msg1 = shop_interface.add_shop_cart(user_info['user'], shop_cart)
                            print(msg1)
                            break
                    elif commit == "N":
                        msg = shop_interface.add_shop_cart(user_info['user'], shop_cart)
                        print(msg)
                        break
                    else:
                        print('请输入合法的指令！')
                        continue
            else:
                print('您的余额太少还是去充值吧！')
                break
        else:
            print('请输入合法额指令！')
            continue


# 查看流水
@common.wrapper
def check_flow():
    flag, msg = user_interface.check_flow_interface(user_info['user'])
    if flag:
        for line in msg:
            print(line)
    else:
        print(msg)


# 注销
@common.wrapper
def cancel():
    msg = user_interface.cancel_interface()
    print(msg)


# 功能函数字典
func_dict = {
    '1': register,
    '2': login,
    '3': check_bal,
    '4': transfer,
    '5': withdraw,
    '6': repay,
    '7': check_shop_cart,
    '8': shopping,
    '9': check_flow,
    '10': cancel,

}


# 执行程序
def run():
    while True:
        print('''
        *******功能主界面*****
        1.注册
        2.登录
        3.查看余额
        4.转账
        5.提现
        6.还款
        7.查看购物车
        8.购物功能
        9.查看流水
        10.注销
        ps：任意输入界面输入'q'返回至主界面
        主界面位置输入'Q'退出程序
        ''')
        choice = input('请输入要选择的功能对应的编号：').strip()
        if choice == 'Q':
            break
        if choice.isdigit() and 0 < int(choice) < len(func_dict) + 1:
            choice = str(choice)
            func_dict[choice]()
        else:
            print('请输入有效的指令！')

db 存放数据的文件夹，相当于数据库

__ init __.py

db_handler.py

from conf import settings
import os
import json


# 查看数据
def check_data(user):
    user_path = os.path.join(settings.DB_PATH, f'{user}.json')
    if os.path.exists(user_path):
        with open(user_path, 'r', encoding='utf-8') as f:
            user_dict = json.load(f)
            f.flush()
            return user_dict
    else:
        return False


# 保存数据
def save_data(user_dict):
    user_path = os.path.join(settings.DB_PATH, f'{user_dict["user"]}.json')
    with open(user_path, 'w', encoding='utf-8')as f:
        json.dump(user_dict, f, ensure_ascii=False)
        f.flush()

interface 存放接口的文件夹

__ init __.py

bank_interface.py

from db import db_handler
from lib import common

bank_logger = common.get_logger('bank')


# 转账接口
def transfer_interface(my_user, to_user, money):
    my_user_dict = db_handler.check_data(my_user)
    to_user_dict = db_handler.check_data(to_user)
    if my_user_dict['balance'] >= int(money):
        my_user_dict['balance'] -= int(money)
        to_user_dict['balance'] += int(money)
        flow_str1 = f'{my_user}给{to_user}转了{money}元！'
        flow_str2 = f'{to_user}接收了{my_user}{money}元！'
        my_user_dict['flow'].append(flow_str1)
        to_user_dict['flow'].append(flow_str2)
        db_handler.save_data(my_user_dict)
        db_handler.save_data(to_user_dict)
        bank_logger.info(f'{my_user}进行了转账操作！')
        return True, '转账成功！'

    else:
        return False, '余额不足无法转账！'


# 提现接口
def withdraw_interface(user, money):
    user_dict = db_handler.check_data(user)
    if user_dict['balance'] >= int(money):
        user_dict['balance'] -= int(money) * 1.05
        flow_str = f'{user}提现{money}元，手续费{int(money) * 0.05}'
        user_dict['flow'].append(flow_str)
        db_handler.save_data(user_dict)
        bank_logger.info(f'{user}进行了提现操作！')
        return True, f'{user}提现{money}元成功！，手续费{int(money) * 0.05}'
    else:
        return False, '余额不足，提现失败'


# 还款接口
def repay_interface(user, money):
    user_dict = db_handler.check_data(user)
    user_dict['balance'] += int(money)
    flow_str = f'{user}还款{money}元成功！'
    user_dict['flow'].append(flow_str)
    db_handler.save_data(user_dict)
    bank_logger.info(f'{user}进行了还款操作！')
    return f'{user}还款{money}元成功！'

shop_interface.py

from db import db_handler
from lib import common

shop_logger = common.get_logger('shop')


# 支付接口
def pay_interface(user, cost):
    user_dict = db_handler.check_data(user)
    if user_dict['balance'] >= int(cost):
        user_dict['balance'] -= int(cost)
        flow_str = f'{user}购买商品成功！花费{cost}元！'
        user_dict['flow'].append(flow_str)
        db_handler.save_data(user_dict)
        shop_logger.info(f'{user}购买了商品！')
        return True, '购买成功！'
    else:
        return False, '余额不足，购买失败！'


# 查看购物车接口
def check_shop_cart(user):
    user_dict = db_handler.check_data(user)
    if user_dict['shop_cart']:
        return True, user_dict['shop_cart']
    else:
        return False, '目前购物车为空！'


# 添加购物车接口
def add_shop_cart(user, shop_cart):
    user_dict = db_handler.check_data(user)
    user_dict['shop_cart'].update(shop_cart)
    db_handler.save_data(user_dict)
    return '已自动帮您添加到购物车，方便你下次选购！'

user_interfcae.py

from db import db_handler
from lib import common

user_logger = common.get_logger('user')


# 注册接口
def register_interface(user, pwd):
    user_dict = {
        'user': user,
        'pwd': common.get_md5(pwd),
        'balance': 20000,
        'flow': [],
        'shop_cart': {},
        'lock': False,
    }
    db_handler.save_data(user_dict)
    user_logger.info(f'{user}注册成功!')
    return f'{user}注册成功！'


# 登录接口
def login_interface(user, pwd):
    user_dict = db_handler.check_data(user)
    if user_dict['pwd'] == pwd:
        user_logger.info(f'{user}登录成功!')
        return True, f'{user}登录成功！'

    else:
        return False, f'密码不正确！'


# 查看余额接口
def check_bal_interface(user):
    user_dict = db_handler.check_data(user)
    return user_dict['balance']


# 查看流水接口
def check_flow_interface(user):
    user_dict = db_handler.check_data(user)
    if user_dict['flow']:
        return True, user_dict['flow']
    else:
        return False, '还没有流水'


# 注销接口
def cancel_interface():
    from core import src
    src.user_info['user'] = None
    user_logger.info(f'注销成功!')
    return '注销成功！'

lib 存放公共方法的文件夹

__ init __

common.py

import hashlib
import logging.config
from conf import settings


# 密码加密
def get_md5(pwd):
    obj_md5 = hashlib.md5()
    obj_md5.update(pwd.encode('utf-8'))
    sal = '超喜欢你！'
    obj_md5.update(sal.encode('utf-8'))
    res = obj_md5.hexdigest()
    return res


# 登录认证的装饰器
def wrapper(func):
    from core import src
    def inner(*args, **kwargs):
        if src.user_info['user']:
            res = func(*args, **kwargs)
            return res
        else:
            print('请先进行登录操作！')
            src.login()
    return inner


# 日志功能
def get_logger(user_type):
    logging.config.dictConfig(settings.LOGGING_DIC)
    logger = logging.getLogger(user_type)
    return logger

log 存放日志的文件夹

readme.txt 项目说明书

   1.注册
        2.登录
        3.查看余额
        4.提现
        5.还款
        6.转账
        7.查看购物车
        8.购物功能
        9.查看流水
        10.注销

start.py 启动文件

import os
import sys
from core import src

# 配置环境变量
sys.path.append(
    os.path.dirname(__file__)
)

if __name__ == '__main__':
    src.run()