流程图：
需求：
ATM：模拟实现一个ATM 购物商城程序 额度 15000或自定义 实现购物商城，买东西加入 购物车，调用信用卡接口结账 可以提现，手续费5% 支持多账户登录 支持账户间转账 记录每月日常消费流水 提供还款接口 ATM记录操作日志 提供管理接口，包括添加账户、用户额度，冻结账户等。。。 用户认证用装饰器 程序目录结构
代码语言：javascript复制../module2-ATM
├── ATM流程图.png #流畅图
├── bin #atm执行程序目录
│ ├── ATM_start.py
│ └── __init__.py
├── db #数据库目录
│ ├── __init__.py
│ ├── shopping_car #购物车文件
│ ├── shopping_data #信用卡信息文件
│ └── user_data #管理后台用户密码
├── __init__.py
├── log #日志目录
│ ├── __init__.py
│ └── record.log
├── main #主要目录，相关模块功能都在这里
│ ├── admin.py #管理后台模块
│ ├── core.py #调用各个模块的主模块
│ ├── credictcard.py #信用卡模块
│ ├── __init__.py
│ ├── log.py #日志模块
│ └── shopping_mall.py #商城模块
└── READMEbin目录
atm_start.py执行程序
代码语言：javascript复制#coding:utf-8
#Author:支文伟
'''执行ATM程序'''
import os,sys
core_path = os.path.dirname(os.path.dirname(os.path.abspath(__file__))) '/main'
sys.path.append(core_path) #把该路径加到环境变量
from core import *
if __name__ == '__main__':
core()db目录
代码语言：javascript复制{"66661111": {"locked": "False", "password": 666666, "totalbill": 998, "credictcard": 66661111, "deflimit": 15000, "personinfo": "zhiww", "limitcash": 6502, "limit": 14002}, "66668888": {"credictcard": 66668888, "password": 123456, "totalbill": 0, "locked": "False", "deflimit": 15000, "personinfo": "alex", "limitcash": 7500, "limit": 15000}}[["shoes", "998"]]oppoR9s 2500
ipad 5000
book 350
bike 1999
clothes 1600
shoes 998{"admin": "123"}log目录
代码语言：javascript复制2017-09-02 22:17:56,156 --- 购物---oppoR9s---价格---2500
2017-09-02 22:17:59,843 --- 购物---ipad---价格---5000
2017-09-02 22:19:27,083 --- 购物---oppoR9s---价格---2500
2017-09-02 22:19:27,667 --- 购物---ipad---价格---5000
2017-09-02 22:20:41,450 --- 购物---oppoR9s---价格---2500
2017-09-02 22:20:42,227 --- 购物---ipad---价格---5000
2017-09-02 22:21:03,874 --- 购物---oppoR9s---价格---2500
2017-09-02 22:21:04,307 --- 购物---ipad---价格---5000
2017-09-02 22:21:15,297 --- 购物---oppoR9s---价格---2500
2017-09-02 22:21:15,707 --- 购物---ipad---价格---5000
2017-09-02 22:21:43,529 --- 购物---oppoR9s---价格---2500
2017-09-02 22:21:43,778 --- 购物---ipad---价格---5000
2017-09-02 22:21:44,138 --- 购物---oppoR9s---价格---2500
2017-09-02 22:23:12,962 --- 购物---oppoR9s---价格---2500
2017-09-02 22:23:40,754 --- 购物---oppoR9s---价格---2500
2017-09-02 22:24:31,233 --- 购物---oppoR9s---价格---2500
2017-09-02 22:24:52,283 --- 购物---oppoR9s---价格---2500
2017-09-02 22:36:49,801 --- 购物---oppoR9s---价格---2500
2017-09-02 22:36:50,240 --- 购物---ipad---价格---5000
2017-09-02 22:37:14,768 --- 购物---oppoR9s---价格---2500
2017-09-02 22:37:15,385 --- 购物---ipad---价格---5000
2017-09-02 22:38:20,097 --- 购物---oppoR9s---价格---2500
2017-09-02 22:38:20,586 --- 购物---ipad---价格---5000
2017-09-02 22:39:09,520 --- 购物---oppoR9s---价格---2500
2017-09-02 22:39:09,841 --- 购物---ipad---价格---5000
2017-09-02 22:39:10,584 --- 购物---oppoR9s---价格---2500
2017-09-02 22:39:45,185 --- 购物---oppoR9s---价格---2500
2017-09-02 22:39:46,233 --- 购物---ipad---价格---5000
2017-09-02 22:39:59,344 --- 购物---bike---价格---1999
2017-09-02 22:40:16,728 --- 购物---oppoR9s---价格---2500
2017-09-02 22:41:28,536 --- 购物---oppoR9s---价格---2500
2017-09-02 22:44:09,529 --- 购物---oppoR9s---价格---2500
2017-09-02 22:44:10,210 --- 购物---ipad---价格---5000
2017-09-02 22:45:01,121 --- 购物---oppoR9s---价格---2500
2017-09-02 22:45:41,448 --- 购物---oppoR9s---价格---2500
2017-09-02 22:50:57,263 --- 购物---oppoR9s---价格---2500
2017-09-02 22:51:27,760 --- 购物---oppoR9s---价格---2500
2017-09-02 22:54:17,922 --- 购物---oppoR9s---价格---2500
2017-09-02 22:54:54,464 --- 购物---oppoR9s---价格---2500
2017-09-02 22:54:55,879 --- 购物---ipad---价格---5000
2017-09-02 22:54:57,209 --- 购物---book---价格---350
2017-09-02 22:55:36,530 --- 购物---shoes---价格---998
2017-09-02 22:55:37,552 --- 购物---book---价格---350
2017-09-02 22:55:38,208 --- 购物---bike---价格---1999
2017-09-02 22:55:38,680 --- 购物---oppoR9s---价格---2500
2017-09-06 14:37:00,639 --- 购物---oppoR9s---价格---2500
2017-09-06 14:37:01,162 --- 购物---book---价格---350
2017-09-06 14:37:01,570 --- 购物---clothes---价格---1600
2017-09-07 10:16:24,277 --- 12345678--信用卡商城结账--4450
2017-09-07 10:18:59,989 --- 12345678--信用卡商城结账--4450¥
2017-09-10 15:00:49,031 --- 购物---oppoR9s---价格---2500
2017-09-10 15:00:49,031 --- 购物---oppoR9s---价格---2500
2017-09-10 15:00:50,222 --- 购物---ipad---价格---5000
2017-09-10 15:00:50,222 --- 购物---ipad---价格---5000
2017-09-10 15:04:51,710 --- 购物---ipad---价格---5000
2017-09-10 15:04:51,710 --- 购物---ipad---价格---5000
2017-09-10 15:04:53,343 --- 购物---oppoR9s---价格---2500
2017-09-10 15:04:53,343 --- 购物---oppoR9s---价格---2500
2017-09-10 15:05:53,751 --- 购物---ipad---价格---5000
2017-09-10 15:05:53,751 --- 购物---ipad---价格---5000
2017-09-10 15:05:54,527 --- 购物---book---价格---350
2017-09-10 15:05:54,527 --- 购物---book---价格---350
2017-09-10 15:06:27,303 --- 购物---book---价格---350
2017-09-10 15:06:27,303 --- 购物---book---价格---350
2017-09-11 10:16:57,211 --- 购物---oppoR9s---价格---2500
2017-09-11 10:16:57,211 --- 购物---oppoR9s---价格---2500
2017-09-11 10:16:57,930 --- 购物---ipad---价格---5000
2017-09-11 10:16:57,930 --- 购物---ipad---价格---5000
2017-09-11 10:17:28,513 --- 购物---oppoR9s---价格---2500
2017-09-11 10:17:28,513 --- 购物---oppoR9s---价格---2500
2017-09-11 10:17:32,387 --- 购物---oppoR9s---价格---2500
2017-09-11 10:17:32,387 --- 购物---oppoR9s---价格---2500
2017-09-11 10:17:34,916 --- 购物---book---价格---350
2017-09-11 10:17:34,916 --- 购物---book---价格---350
2017-09-11 10:44:51,037 --- 购物---oppoR9s---价格---2500
2017-09-11 10:44:51,037 --- 购物---oppoR9s---价格---2500
2017-09-11 10:44:52,299 --- 购物---ipad---价格---5000
2017-09-11 10:44:52,299 --- 购物---ipad---价格---5000
2017-09-11 11:55:00,038 --- 购物---shoes---价格---998
2017-09-11 11:55:00,038 --- 购物---shoes---价格---998
2017-09-11 11:55:30,671 --- 66661111--信用卡商城结账--998¥
2017-09-11 11:55:30,671 --- 66661111--信用卡商城结账--998¥main目录
代码语言：javascript复制#coding:utf-8
#Author:zhiwenwei
import os,json
base_dir = os.path.dirname(os.path.dirname(os.path.abspath(__file__)))
'''数据库文件的绝对路径'''
creditcard_data = base_dir '/db/creditcard_data'
user_dir = base_dir '/db/user_data'
'''管理员用户认证装饰器'''
def auth_admin(func):
def wrapper(*args,**kwargs):
while True:
check = input("是否确认认证用户？y确认q退出认证")
if check == "y":
print("管理员用户认证".center(60,'-'))
username = input("请输入管理员账户：").strip()
passwd = input("请输入管理员密码：").strip()
with open(user_dir, 'r', encoding='utf-8') as f:
_user_data = json.loads(f.read())
if username in _user_data.keys() and int(passwd) == int(_user_data[username]):
print("用户%s认证成功"%(username))
else:
print("用户名或密码有误")
continue
else:
print("已退出管理用户认证")
break
func(*args,**kwargs)
return wrapper
'''申请信用卡'''
@auth_admin
def apply():
while True:
print("申请信用卡".center(40,'-'))
with open(creditcard_data,'r ',encoding='utf-8') as f:
_credictcard_data = json.loads(f.read())
credictcard_id = input("请输入你要申请的信用卡号(八位数字)：")
if credictcard_id.isdigit() and len(credictcard_id) == 8:
if credictcard_id not in _credictcard_data.keys():
apply_user = input("请输入信用卡申请人：").strip()
apply_passwd = input("请输入信用卡密码(六位数)：").strip()
if len(apply_user) > 0:
if apply_passwd.isdigit() and len(apply_passwd) == 6:
_credictcard_data[credictcard_id] = {"limitcash": 7500, "password":int(apply_passwd), "personinfo": apply_user,"locked": "False",
"deflimit": 15000, "credictcard": int(credictcard_id), "limit": 15000, "totalbill": 0}
dict = json.dumps(_credictcard_data)
f.seek(0)
f.truncate(0)
f.write(dict)
f.flush()
print("申请信用卡成功！n卡号：%st持卡人：%sn额度：15000t取现额度：7500"%(credictcard_id,apply_user))
break
else:
print("输入密码有误！")
continue
else:
print("申请人不能为空")
else:
print("改信用卡已存在")
continue
else:
print("输入信用卡有误!")
'''修改信用卡密码'''
@auth_admin
def alter_pw():
while True:
print("修改信用卡密码".center(40,'-'))
with open(creditcard_data,'r ',encoding='-utf8') as f:
_creditcard_data = json.loads(f.read())
creditcard_id = input("请输入你要修改的信用卡：").strip()
if creditcard_id.isdigit() and len(creditcard_id) ==8:
if creditcard_id in _creditcard_data.keys():
passwd = _creditcard_data[creditcard_id]["password"]
_passwd = input("请输入信用卡原密码：").strip()
if int(_passwd) == passwd:
passwd_new = input("请输入你要设置的信用卡密码：").strip()
_creditcard_data[creditcard_id]["password"] = int(passwd_new)
dict = json.dumps(_creditcard_data)
f.seek(0)
f.truncate(0)
f.write(dict)
f.flush()
print("密码修改成功！")
break
else:
print("你输入的原密码有误！")
else:
print("你输入的信用卡不存在")
else:
print("你输入的信用卡有误")
'''添加管理员账户'''
@auth_admin
def alter_admin():
while True:
print("添加管理员账户".center(50,'-'))
username = input("请设置管理员账户名：").strip()
passwd = input("请设置账户密码：").strip()
with open(user_dir,'r ',encoding='utf-8') as f:
user_data = json.loads(f.read())
if username not in user_data.keys():
if len(username) >= 0 and len(passwd) >= 0:
user_data[username] = passwd
user_data = json.dumps(user_data)
f.seek(0)
f.truncate(0)
f.write(user_data)
f.flush()
print("成功添加[%s]管理员"%(username))
break
else:
print("账户或密码不能为空")
else:
print("该管理账户名[%s]已存在！请换一个用户名！"%(username))
continue#coding:utf-8
#Author:zhiwenwei
import os,sys
# base_dir = os.path.dirname(os.path.dirname(os.path.abspath(__file__)))
# core_path = base_dir 'main'
# sys.path.insert(0,core_path)
from admin import *
from credictcard import *
from shopping_mall import *
'''主页面列表'''
def core_list():
list = [" ATM ",
"购物商城",
"后台管理",
"退出程序"]
index = 0
for i in list:
print(index 1,i)
index =1
'''ATM页面列表'''
def atm_list():
list = ["信用卡信息",
"信用卡转账",
"信用卡取现",
"信用卡还款",
]
index = 0
for i in list:
print(index 1,i)
index = 1
'''后台管理列表'''
def admin_list():
list = [" 申请信用卡 ",
"添加管理员账户",
"修改信用卡密码"
]
index = 0
for i in list:
print(index 1,i)
index = 1
'''购物商城列表'''
def shopping_list():
list = ["购物商城",
"购物结算",
"清空购物车",
"查看购物车"
]
index = 0
for i in list:
print(index 1,i)
index = 1
'''主函数'''
def core():
print("欢迎来到购物商城ATM系统".center(30,'-'))
while True:
core_list()
choice = input("请选择ID：").strip()
if choice == "q":
print("已退出，欢迎下次使用！".center(40,'-'))
exit()
if choice.isdigit():
choice = int(choice)
if 1 <= choice <= 4:
while True:
if choice == 1:
print("欢迎来到信用中心".center(40,'-'))
atm_list()
atm_choice = input("请选择ATM操作id：").strip()
if atm_choice == "q":break
if atm_choice == "exit":exit("已退出程序，欢迎下次使用！")
if atm_choice.isdigit():
atm_choice = int(atm_choice)
if 1 <= atm_choice <= 4:
while True:
if atm_choice == 1:
creditcard_info()
break
elif atm_choice == 2:
transfer()
break
elif atm_choice == 3:
takecash()
break
elif atm_choice == 4:
repayment()
break
else:
print("请输入正确的id")
elif choice ==2:
print("欢迎来到购物商城".center(40,'-'))
shopping_list()
shop_choice = input("请选择id：").strip()
if shop_choice == "q":break
if shop_choice == "exit":exit("已退出程序，欢迎下次使用！")
if shop_choice.isdigit():
shop_choice = int(shop_choice)
if 1 <= shop_choice <= 4:
while True:
if shop_choice == 1:
mall()
break
elif shop_choice == 2:
shopping_pay()
break
elif shop_choice == 3:
del_shoppingcar()
break
elif shop_choice == 4:
search_shopppingcar()
break
else:
print("请输入正确的id")
else:
print("请输入正确的id")
elif choice == 3:
print("欢迎来到管理后台中心".center(50,'-'))
admin_list()
admin_choice = input("请选择id(q返回exit退出)").strip()
if admin_choice == "q":break
if admin_choice == "exit":exit("已退出程序，欢迎下次使用！")
if admin_choice.isdigit():
admin_choice = int(admin_choice)
if 1 <= admin_choice <= 3:
while True:
if admin_choice == 1:
apply()
break
elif admin_choice == 2:
alter_admin()
break
elif admin_choice == 3:
alter_pw()
break
else:
print("请输入正确的id")
elif choice == 4:
exit("已退出程序，欢迎下次使用！")
else:
print("请输入正确的id")
else:
print("你输入有误！")#coding:utf-8
#Author:支文伟
"""信用卡中心"""
import os
import json
import sys
from log import get_logger #导入日志模块
'''获取数据文件的绝对路径'''
base_dir = os.path.dirname(os.path.dirname(os.path.abspath(__file__))) #获取当前目录的上级目录绝对路径
creditcard_path = base_dir '/db/creditcard_data'
user_path = base_dir '/db/user_data'
recordlog_path = base_dir '/log/record.log'
logger = get_logger() #日志实例化对象
'''个人信用卡信息'''
def creditcard_info():
while True:
with open(creditcard_path,'r',encoding='utf8') as f:
creditcard_data = json.loads(f.read())
choice = input("请输入你要查询的信用卡卡号(8位数字)(退出输入q)：").strip()
if choice in creditcard_data.keys():
print("我的信用卡信息：".center(50,'-'))
print("持卡人：[ %s ]n卡号：[ %s ]n额度：[ %s ]n可用额度：[ %s ]n提现额度：[ %s ]"
% (creditcard_data[choice]["personinfo"],choice,creditcard_data[choice]["deflimit"],
creditcard_data[choice]["limit"],creditcard_data[choice]["limitcash"]))
elif choice == "q":
break
else:
print("你输入的信用卡不存在！")
'''信用卡转账'''
def transfer():
while True:
print("信用卡转账".center(50, '-'))
with open(creditcard_path,'r ',encoding='utf8') as f:
creditcard_data = json.loads(f.read())
choice = input("请输入你的信用卡账号('q'返回):").strip()
if choice == 'q':
break
if choice in creditcard_data.keys():
now_limit = creditcard_data[choice]["limit"]
transfer_card = input("请输入你要转账的账户：").strip()
if transfer_card.isdigit() and transfer_card in creditcard_data.keys() and len(transfer_card) == 8:
transfer_money = input("请输入转账金额：").strip()
if transfer_money.isdigit():
transfer_money = int(transfer_money)
creditcard_passwd = input("请输入信用卡密码:").strip()
creditcard_passwd = int(creditcard_passwd)
if creditcard_passwd == creditcard_data[choice]["password"]:
if transfer_money <= int(now_limit):
creditcard_data[choice]["limit"] -= transfer_money
creditcard_data[choice]["limitcash"] -= transfer_money
creditcard_data[transfer_card]["limit"] = transfer_money
creditcard_data[transfer_card]["limitcash"] = transfer_money
print("转账成功".center(50,'-'))
print("转账金额：[ %s ]n信用卡可用额度：[ %s ]" % (transfer_money,creditcard_data[choice]["limit"]))
'''转账信息记录到日志'''
transfer_info = ["信用卡转账",str(choice),str(transfer_money)]
transfer_info = '---'.join(transfer_info)
logger.debug(transfer_info)
f.seek(0)
#f.truncate(0)
creditcard_data_dumps = json.dumps(creditcard_data)
f.write(creditcard_data_dumps)
else:
print("转账额度不能大于信用额度")
else:
print("输入密码有误")
else:
print("请输入数字格式的金额！")
else:
print("你输入的账户不存在")
else:
print("你输入的信用卡账号不存在！")
'''信用卡取现'''
def takecash():
while True:
print("信用卡取现".center(50,'-'))
with open(creditcard_path,'r ',encoding='utf-8') as f:
creditcard_data = json.loads(f.read())
creditcard = input("请输入你的信用卡账号(q返回)：").strip()
if creditcard == 'q':break
if creditcard in creditcard_data.keys():
limit = creditcard_data[creditcard]["limit"]
limitcash = creditcard_data[creditcard]["limitcash"]
totalbill = creditcard_data[creditcard]["totalbill"]
print("信用卡额度：[ %d ]n信用卡账单：[ %d ]n单信用卡可取现额度：[ %d ]" %(limit,totalbill,limitcash,))
cash = input("请输入你要取现的额度,手续费%5：").strip()
if cash.isdigit() and 0 < int(cash) <= limitcash:
passwd = input("请输入信用卡:%s的密码：" %(creditcard)).strip()
if int(passwd) == creditcard_data[creditcard]["password"]:
cash = int(cash)
fee = cash * 0.05 # 手续费
total_cash = cash fee
totalbill = cash
creditcard_data[creditcard]["limitcash"] -= total_cash
creditcard_data[creditcard]["limit"] -= total_cash
creditcard_data[creditcard]["totalbill"] = totalbill
print("成功取现：[%d]n收取手续费:[%d]" %(cash,fee))
'''取现信息记录到日志'''
takecash_info = ["信用卡取现",creditcard,str(cash)]
takecash_info = '---'.join(takecash_info)
logger.debug(takecash_info)
'''永久保存数据库'''
f.seek(0)
creditcard_data = json.dumps(creditcard_data)
f.write(creditcard_data)
f.flush()
else:
print("信用卡密码有误！")
else:
print("你输入额度含有非数字或超过可取现额度")
else:
print("你输入的信用卡账号不存在")
'''信用卡还款'''
def repayment():
while True:
print("信用卡还款".center(50,'-'))
creditcard = input("请输入信用卡账号：").strip()
with open(creditcard_path,'r ',encoding='utf8') as f:
creditcard_data = json.loads(f.read())
print(creditcard_data)
if creditcard in creditcard_data.keys():
totalbill = creditcard_data[creditcard]["totalbill"]
print("你的信用卡[%s]总账单:[%d]"%(creditcard,totalbill))
repayments = input("请输入你要还款的额度：").strip()
if repayments.isdigit() and 0 < int(repayments) <= totalbill:
passwd = input("请输入信用卡:[%s]的密码："%(creditcard)).strip()
if int(passwd) == creditcard_data[creditcard]["password"]:
repayments = int(repayments)
creditcard_data[creditcard]["totalbill"] -= repayments
creditcard_data[creditcard]["limit"] = repayments
creditcard_data[creditcard]["limitcash"] = repayments
totalbill -= repayments
'''记录还款信息到日志'''
repayment_info = ["信用卡还款",creditcard,str(repayments)]
repayment_info = '---'.join(repayment_info)
logger.debug(repayment_info)
'''写到文件'''
f.seek(0)
creditcard_data = json.dumps(creditcard_data)
f.write(creditcard_data)
f.flush()
print("成功还款：[%d]n剩下总账单：[%d]"%(repayments,totalbill))
else:
print("你输入的密码有误")
else:
print("你输入的额度非数字或超过还款额度！")
else:
print("你输入的信用卡账号不存在！")#coding:utf-8
#Author:Mr Zhi
import logging,os
BASE_DIR = os.path.dirname(os.path.dirname(os.path.abspath(__file__))) #获取上级目录的绝对路径
log_dir = BASE_DIR '/log/record.log'
def get_logger():
fh = logging.FileHandler(log_dir,encoding='utf-8') #创建一个文件流并设置编码utf8
logger = logging.getLogger() #获得一个logger对象，默认是root
logger.setLevel(logging.DEBUG) #设置最低等级debug
fm = logging.Formatter("%(asctime)s --- %(message)s") #设置日志格式
logger.addHandler(fh) #把文件流添加进来，流向写入到文件
fh.setFormatter(fm) #把文件流添加写入格式
return logger#coding:utf-8
#Author:支文伟
import os,json
from log import get_logger
logger = get_logger() #日志模块实例化对象
base_dir = os.path.dirname(os.path.dirname(os.path.abspath(__file__)))
'''数据库文件的绝对路径'''
shopping_data = base_dir '/db/shopping_data'
shopping_car = base_dir '/db/shopping_car'
creditcard_data = base_dir '/db/creditcard_data'
'''购物商城'''
def mall():
product_list = []
product_list2 = []
with open(shopping_data,'r',encoding='utf8') as f:
for i in f:
product_list.append(i.strip("n").split(' ')) #拆分为列表并添加到product_list
def product_info():
for index,item in enumerate(product_list):
print(index 1,item[0],item[1])
while True:
print("欢迎来到购物商城".center(30, '-'))
product_info()
choice_id = input("请输入商品编号（q返回）：").strip()
if choice_id.isdigit():
choice_id = int(choice_id)
if 0 <= choice_id <= len(product_list):
product_item = product_list[choice_id-1] #获取选择的商店
print("商品 %s 加入购物车，价格 %s " % (product_item[0],product_item[1]))
product_list2.append(product_item)
'''购物信息记录到日志模块'''
shopping_info = ["购物",str(product_item[0]),"价格",product_item[1]]
shopping_info = "---".join(shopping_info)
logger.debug(shopping_info)
else:
print("没有对应的商品编号，请重新输入！")
elif choice_id == "q":
with open(shopping_car,'r ',encoding='utf-8') as f:
list = json.loads(f.read())
list.extend(product_list2)
f.seek(0)
list = json.dumps(list)
f.write(list)
f.flush()
break
else:
print("没有对应的商品编号，请重新输入！")
'''清空购物车'''
def del_shoppingcar():
while True:
choice = input("是否清空购物车？('y'确认'q'退出)：").strip()
if choice == 'q':break
if choice == 'y':
with open(shopping_car,"r ",encoding='utf-8') as f:
res = json.loads(f.read())
print(type(res))
if res != []:
f.seek(0)
f.truncate(0) #截断后面所有的字符也就是清空
list = json.dumps([])
f.write(list)
f.flush()
print("购物车已经清空！")
break
else:
print("你还没有消费，购物车为空！")
else:
print("你输入指令有误！")
break
'''购物结算'''
def shopping_pay():
while True:
print("购物结算".center(50,'-'))
with open(shopping_car,'r ',encoding='utf-8') as f:
data = json.loads(f.read())
if data != []:
print("t商品t价格")
for index,item in enumerate(data):
print(index 1,item[0],item[1])
money = sum([int(i[1]) for i in data])
else:
print("你还没消费，快去花钱吧！")
break
choice = input("商品总额：%s (y)确认支付,(q)返回：" %(money))
if choice == 'q':break
if choice == 'y':
creditcard_id = input("请输入结算的信用卡账号：").strip()
with open(creditcard_data,'r ',encoding='utf-8') as f2:
_creditcard_data = json.loads(f2.read())
if creditcard_id in _creditcard_data.keys():
passwd = input("请输入信用卡 %s 支付密码：" % (_creditcard_data[creditcard_id]["credictcard"])).strip()
if int(passwd) == _creditcard_data[creditcard_id]["password"]:
limit = _creditcard_data[creditcard_id]["limit"]
limitcash = _creditcard_data[creditcard_id]["limitcash"]
if _creditcard_data[creditcard_id]["limit"] >= money:
_creditcard_data[creditcard_id]["limit"] -= money
_creditcard_data[creditcard_id]["limitcash"] -= money
_creditcard_data[creditcard_id]["totalbill"] = money #账单
'''写入日志'''
shopping_info = [creditcard_id,"信用卡商城结账",str(money) "¥"]
shopping_info = '--'.join(shopping_info)
logger.debug(shopping_info)
'''写入数据'''
dict = json.dumps(_creditcard_data)
f2.seek(0)
f2.truncate(0)
f2.write(dict)
print("支付成功：%s¥"%(money))
break
else:
print("当前信用卡额度%s不足支付！"%(limit))
else:
print("密码有误，请重新输入！")
else:
print("你输入的信用卡不存在！")
'''查看购物车'''
def search_shopppingcar():
print("购物车".center(60,'-'))
with open(shopping_car,'r',encoding='utf-8') as f:
shopping_car_info = json.loads(f.read())
if shopping_car_info != []:
print("t商品t价格")
for i in shopping_car_info:
print(i)
else:
print("购物车为空，请去商城看看！！！")
