项目 - 购物车

程序员文章站 2022-06-21 15:32:49

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程序要求

程序要求

用户注册功能
用户登录功能
用户余额查询
转账,还款
查询历史记录
购物
购物车结账

conf 目录

import os
import logging.config

##########
# 功能字典#
##########
FUNC_MSG = {
    '0': '注销',
    '1': '登录',
    '2': '注册',
    '3': '查看余额',
    '4': '转账',
    '5': '还款',
    '6': '取款',
    '7': '查看流水',
    '8': '购物',
    '9': '购物车',
    'q': '退出'
}

##################
# db/log文件夹路径#
##################
ATM_PATH = os.path.dirname(os.path.dirname(__file__))
DB_PATH = os.path.join(ATM_PATH, 'db')
LOG_PATH = os.path.join(ATM_PATH, 'log')
GOODS_INFO_PATH = os.path.join(DB_PATH, 'goods_info.xlsx')

##############
# logging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；lineno为调用日志输出函数的语句所在的代码行
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.dirname(os.path.dirname(os.path.abspath(__file__)))  # log文件的目录，需要自定义文件路径 # atm
logfile_dir = os.path.join(logfile_dir, 'log')  # C:\Users\oldboy\Desktop\atm\log

logfile_name = 'log.log'  # log文件名，需要自定义路径名

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

# log文件的全路径
logfile_path = os.path.join(logfile_dir, logfile_name)  # C:\Users\oldboy\Desktop\atm\log\log.log
# 定义日志路径 结束

# log配置字典
LOGGING_DIC = {
    'version': 1,
    'disable_existing_loggers': False,
    'formatters': {
        'standard': {
            'format': standard_format
        },
        'simple': {
            'format': simple_format
        },
    },
    'filters': {},  # filter可以不定义
    'handlers': {
        # 打印到终端的日志
        'console': {
            'level': 'INFO',
            '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': 'INFO',
            '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。如果''设置为固定值logger1，则下次导入必须设置成logging.getLogger('logger1')
        '': {
            # 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
            'handlers': ['default', 'console'],
            'level': 'DEBUG',
            'propagate': False,  # 向上（更高level的logger）传递
        },
    },
}

core 目录

##########
# src.py #
##########

from lib import common
from interface import user, bank, store

logger = common.load_logging_config('user')

user_auth = {'username': None}

username = user_auth['username']


@common.login_auth
def logout():
    username = None
    user_auth['username'] = None
    print(f"{username}已经注销")
    logger.info(f"{username}已经注销")


def login():
    print('欢迎来到登陆功能')
    global username

    count = 0
    while count < 3:
        login_username, pwd = common.input_username_pwd()

        flag, msg, level = user.login_interface(login_username, pwd)
        print(msg)
        if flag:
            user_auth['username'] = login_username
            username = login_username
            logger.info(f'{username}登录成功')
            break

        # 判断是否需要锁定
        if level in [2, 3]:
            user.locked_interface(login_username)
            print('你的账户已经被锁定了')
            break

        count += 1


def register():
    print('欢迎来到注册功能')

    count = 0
    while count < 3:
        username, pwd = common.input_username_pwd()

        flag, msg = user.register_interface(username, pwd)
        # 判断是否注册成功
        print(msg)
        if flag:
            logger.info(f'{username}注册成功')
            break

        count += 1


@common.login_auth
def check_extra():
    print('欢迎来到查看余额功能')

    extra = bank.check_extra_interface(username)

    print(f'你的余额为{extra}')
    logger.info(f'{username}查看余额,余额为{extra}')

    return extra


@common.login_auth
def transfer():
    print('欢迎来到转账功能')

    from_username = username
    to_username = input('请输入你需要转账的用户>>>')
    flag = common.check_user(to_username)
    if flag:
        money = int(input('请输入你需要转账的金额'))
        flag, msg = bank.transfer_interface(from_username, to_username, money)
        print(msg)
        if flag:
            logger.info(f'{from_username}向{to_username}转了{money}')
            print(f'{from_username}向{to_username}转了{money}')
    else:
        print('用户不存在')


@common.login_auth
def repay():
    print('欢迎来到还款功能')

    flag, msg = bank.repay_interface(username)
    print(msg)
    logger.info(f'{username}{msg}')


@common.login_auth
def withdraw():
    print('欢迎来到取款功能')

    money = int(input('取现多少钱>>>').strip())

    flag, msg = bank.withdraw_interface(username, money)
    print(msg)
    if flag:
        logger.info(f'{username}{msg}')
        return


@common.login_auth
def history():
    print('欢迎来到银行流水查看功能')

    s = bank.history_interface(username)
    print(f'流水为:\n{s}')
    logger.info(f'{username}查看了流水')


@common.login_auth
def shopping():
    print('欢迎来到购物功能')

    msg = store.shopping_interface()
    print(f'{username}{msg}')
    logger.info(f'{username}{msg}')


@common.login_auth
def shopping_car():
    print('欢迎来到购车车功能')

    shopping_car_dict = store.shopping_car_dict

    flag, msg = store.shopping_car_interface(shopping_car_dict, username)
    print(msg)
    if flag:
        logger.info(f'{username}土豪{msg}')


def run():
    FUNC_DICT = {
        '0': logout,
        '1': login,
        '2': register,
        '3': check_extra,
        '4': transfer,
        '5': repay,
        '6': withdraw,
        '7': history,
        '8': shopping,
        '9': shopping_car,
    }
    from conf.settings import FUNC_MSG
    """运行函数，进行功能选择"""

    while True:
        for k, v in FUNC_MSG.items():
            print(f'{k}：{v}')
        func_choice = input('请选择你需要的功能，按q退出').strip()

        # 退出判断
        if func_choice == 'q':
            break

        # 获取功能
        func = FUNC_DICT.get(func_choice)

        if not func:
            print('傻逼，功能不存在')
            continue

        func()


if __name__ == '__main__':
    run()

db目录

#################
# db_handler.py #
#################

interface 目录

###########
# bank.py #
###########
import os
from conf import settings
from db import db_handler


def check_extra_interface(username):
    """检查余额接口"""
    data = db_handler.read_json(username)
    return data['extra']


def transfer_interface(from_username, to_username, money):
    from_username_data = db_handler.read_json(from_username)
    to_username_data = db_handler.read_json(to_username)

    if from_username_data['extra'] > money:
        to_username_data['extra'] += money
        from_username_data['extra'] -= money

        db_handler.save_json(from_username, from_username_data)
        db_handler.save_json(to_username, to_username_data)

        return True, '转账成功'

    return False, '转账失败'


def repay_interface(username):
    username_data = db_handler.read_json(username)
    extra = username_data['extra']

    if extra >= 15000:
        return True, '无需还款'
    else:
        username_data['extra'] = 15000
        db_handler.save_json(username, username_data)
        return True, f'还款{(15000-extra)*1.005}成功'



def withdraw_interface(username, money):
    username_data = db_handler.read_json(username)
    if username_data['extra'] > money:
        username_data['extra'] -= money
        db_handler.save_json(username, username_data)
        return True, f'取现{money}成功'

    return False, f'余额不足'


def history_interface(username):
    filename = os.path.join(settings.LOG_PATH, 'log.log')
    with open(filename, 'r', encoding='utf8') as fr:
        s = ''
        for i in fr:
            if i.split('[')[-1].startswith(username):
                s += i
    return s

############
# store.py #
############

from db import db_handler
from conf import settings
from lib import common

shopping_car_dict = dict()


def read_goods_interface():
    df = db_handler.read_excel(settings.GOODS_INFO_PATH)

    return df


df = read_goods_interface()


def shopping_interface():
    while True:
        print(df)
        common.goods_visualize(df)
        # 打印商品信息
        goods = df.columns
        goods_choice = input('请选择你需要的商品,输入q退出>>>').strip()

        if goods_choice == 'q':
            break

        if goods_choice in goods:
            count_choice = input('请输入你需要购买的商品数量,输入q退出>>>').strip()

            if count_choice == 'q':
                break

            count_choice = int(count_choice)

            if int(df.loc['amount', goods_choice]) < count_choice:
                print('傻逼,库存不足')
                continue
            else:
                goods_price = int(df.loc['price', goods_choice])
                if shopping_car_dict.get(goods_choice):
                    shopping_car_dict[goods_choice] += (count_choice * goods_price)
                else:
                    shopping_car_dict[goods_choice] = (count_choice * goods_price)
                print(f'已经把{goods_choice}*{count_choice}加入购物车')
                df.loc['amount', goods_choice] -= count_choice
        else:
            print('傻逼,中文看不懂,英文也看不懂')

    return f'已加入购物车{shopping_car_dict}'


def shopping_car_interface(shopping_car_dict, username):
    goods_price = sum(shopping_car_dict.values())
    username_data = db_handler.read_json(username)

    if username_data['extra'] >= goods_price:
        username_data['extra'] -= goods_price
        username_data.update(shopping_car_dict)
        db_handler.save_json(username, username_data)
        new_shopping_car_dict = shopping_car_dict.copy()
        shopping_car_dict.clear()

        # 保存为excel文件
        db_handler.save_excel(df, settings.GOODS_INFO_PATH)
        return True, f'购物成功{new_shopping_car_dict}'
    else:
        shopping_car_dict.clear()

        return False, '穷逼也购物'


if __name__ == '__main__':
    read_goods_interface()

###########
# user.py #
###########

from lib import common
from db import db_handler


def register_interface(username, pwd):
    """注册接口"""
    flag = common.check_user(username)
    if flag:
        return False, '用户已经存在'
    else:
        content = {'username': username, 'pwd': pwd, 'extra': 15000, 'locked': 0}
        db_handler.save_json(username, content)
        return True, '用户注册成功'


def login_interface(username, pwd):
    # 判断用户是否存在
    flag = common.check_user(username)
    if not flag:
        return False, '用户不存在', 1

    # 判断用户是否锁定
    data = db_handler.read_json(username)
    if data['locked']:
        return False, '用户已经锁定，去解锁', 2

    # 判断密码
    if pwd == data['pwd']:
        return True, '登陆成功', 0

    return False, '密码错误', 3


def locked_interface(username):
    """输入密码错误就锁"""
    data = db_handler.read_json(username)
    data['locked'] = 1
    db_handler.save_json(username, data)

lib 目录

#############
# common.py #
#############

import os
import hashlib
import logging
import logging.config
from conf import settings
from interface import store


def login_auth(func):
    from core import src
    def wrapper(*args, **kwargs):
        # 判断是否登陆
        if not src.user_auth.get('username'):
            src.login()
            res = func(*args, **kwargs)
            return res

        res = func(*args, **kwargs)
        return res

    return wrapper


def load_logging_config(name):
    logging.config.dictConfig(settings.LOGGING_DIC)
    logger = logging.getLogger(name)

    return logger


def check_user(username):
    """注册接口"""
    username_filename = os.path.join(settings.DB_PATH, f'{username}.json')
    if os.path.exists(username_filename):
        return True


def input_username_pwd():
    username = input('请输入你的用户名>>>').strip()
    pwd = input('请输入你的密码>>>').strip()

    # 密码加密
    m = hashlib.md5()
    m.update(pwd.encode('utf8'))
    pwd = m.hexdigest()

    return username, pwd


def goods_visualize(df):
    """想写就写"""
    import matplotlib.pyplot as plt
    from matplotlib.font_manager import FontProperties
    font = FontProperties(fname='D:\STXIHEI.TTF')

    goods_columns = df.columns.to_list()

    goods_price = df.loc['price', :].to_list()
    price_index = list(range(len(goods_price)))

    goods_amount = df.loc['amount', :].to_list()
    amount_index = list(range(len(goods_amount)))

    fig = plt.figure()

    ax1 = fig.add_subplot(121)
    ax1.bar(price_index, goods_price,color='yellow')
    ax1.set_title('价格表', fontproperties=font)
    plt.xticks(amount_index, goods_columns, fontproperties=font, rotation=45)
    for i in amount_index:
        plt.text(amount_index[i],goods_price[i],s=goods_price[i])

    ax2 = fig.add_subplot(122)
    ax2.bar(amount_index, goods_amount,color='green')
    ax2.set_title('数量表', fontproperties=font)
    plt.xticks(amount_index,goods_columns,fontproperties=font,rotation=45)
    for i in amount_index:
        plt.text(amount_index[i],goods_amount[i],s=goods_amount[i])

    plt.suptitle('商品信息表', fontproperties=font, fontsize=15, weight='bold')
    plt.show()


if __name__ == '__main__':
    # res = check_user('nick')
    # print(res)
    goods_visualize()

log目录

程序运行的目录

run主文件

##########
# run.py #
##########

from core import src
if __name__ == '__main__':
    src.run()

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项目 - 购物车

程序要求

conf 目录

core 目录

db目录

interface 目录

lib 目录

log目录

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