python 信用卡系统+购物商城见解
通过完成信用卡系统+购物商城 使自己在利用 字典和列表方面有了较大的提升，感悟很深，
下面将我对此次作业所展示的重点列表如下：
#!/usr/bin/env python3.5 # -*-coding:utf8-*- import pickle,os,datetime,sys BASE_DIR = os.path.dirname(os.path.dirname(os.path.abspath(__file__))) sys.path.append(BASE_DIR) # 加载用户信息 if os.path.exists(r'%s/config/user_acc.txt'% BASE_DIR): f = open("%s/config/user_acc.txt" % BASE_DIR, "rb") data = pickle.loads(f.read()) f.close() else: data = [] # 加载ATM操作日志信息 if os.path.exists(r'%s/config/user_log.txt'% BASE_DIR): fl = open("%s/config/user_log.txt" % BASE_DIR, "rb") data_log = pickle.loads(fl.read()) fl.close() else: data_log = [] # ATM 操作日志增加函数 def User_Action(cz_usercard,cz_flage,usercard,user_action,money=0): global data_log data_log_add = {} data_log_add["cz_usercard"] = cz_usercard data_log_add["cz_flage"] = cz_flage data_log_add["cz_action"] = user_action data_log_add["cz_adduser"] = usercard data_log_add["cz_time"] = datetime.datetime.now() data_log_add["cz_money"] = money data_log.append(data_log_add) fl = open("%s/config/user_log.txt" % BASE_DIR, "wb") pickle.dump(data_log, fl) fl.close() # 增加用户 def User_Add(cz_usercard,cz_flage,usercard,password,total_money,Repayment_Date,flage): global data data_list = [] for user_data in data: data_list.append(user_data["usercard"]) if usercard not in data_list: # 增加用户 user_dic ={} user_dic["usercard"] = usercard user_dic["password"] = password user_dic["new_money"] = total_money user_dic["total_money"] = total_money user_dic["Repayment_Date"] = Repayment_Date user_dic["flage"] = flage user_dic["state"] = "on" data.append(user_dic) f = open("%s/config/user_acc.txt" % BASE_DIR, "wb") pickle.dump(data, f) f.close() User_Action(cz_usercard,cz_flage,usercard,"增加用户") print("增加卡号[%s],成功！"%(usercard)) else: print("增加信用卡卡号失败，原因：[“已存在”]") # 解冻信用卡 def User_thaw(usercard,cz_usercard,cz_flage): global data # 判断是否为管理员账号 if cz_flage =="1": for x_name in data: if x_name["usercard"] == usercard: x_name["state"] = "on" f = open("%s/config/user_acc.txt" % BASE_DIR, "wb") pickle.dump(data, f) f.close() # 写日志 User_Action(cz_usercard,cz_flage,usercard,"解冻用户") print("解冻用户[%s],成功！"%(usercard)) # 用户冻结 def User_Frozen(usercard,cz_usercard,cz_flage): global data # 判断是否为管理员账号 if cz_flage =="1": for x_name in data: if x_name["usercard"] == usercard: x_name["state"] = "off" f = open("%s/config/user_acc.txt" % BASE_DIR, "wb") pickle.dump(data, f) f.close() # 写日志 User_Action(cz_usercard,cz_flage,usercard,"冻结用户") print("冻结用户[%s],成功！"%(usercard)) # 用户删除 def User_del(usercard,cz_usercard,cz_flage): global data # 判断是否为管理员账号 if cz_flage =="1": for index,x_name in enumerate(data): if x_name["usercard"] == usercard: del data[index] f = open("%s/config/user_acc.txt" % BASE_DIR, "wb") pickle.dump(data, f) f.close() # 写日志 User_Action(cz_usercard,cz_flage,usercard,"删除用户") print("删除用户[%s],成功！"%(usercard)) #用户查询 def Select_User(): for x_name in data: if x_name["flage"] =="1": user_type ="管理员" else: user_type= "信用卡用户" print("-"*100) print("用户类型:[%s],卡号:[%s],信用授予额度:[%s]元,信用卡当前余额:[%s]元,账单日:[%s]号" %(user_type,x_name["usercard"],x_name["total_money"],x_name["new_money"],x_name["Repayment_Date"])) # 信用卡额度调整 def card_limit(usercard,money,cz_usercard,cz_flage): global data for x_name in data: if x_name["usercard"] == usercard: if x_name["total_money"] + money >= 0: x_name["total_money"] += money x_name["new_money"] += money User_Action(cz_usercard,cz_flage,usercard,"调整信用卡额度",money) print("调整信用卡[%s],额度成功！"%(usercard)) else: print("信用卡可用额度不能为负数！") f = open("%s/config/user_acc.txt" % BASE_DIR, "wb") pickle.dump(data, f) f.close()
#!/usr/bin/env python3.5 # -*-coding:utf8-*- import os,pickle,sys,datetime BASE_DIR = os.path.dirname(os.path.dirname(os.path.abspath(__file__))) sys.path.append(BASE_DIR) from contrl.management import User_Action #加载ATM用户数据库 if os.path.exists(r'%s/config/user_acc.txt'% BASE_DIR): f = open("%s/config/user_acc.txt" % BASE_DIR, "rb") data_user = pickle.loads(f.read()) f.close() # 加载ATM操作日志信息 if os.path.exists(r'%s/config/user_log.txt'% BASE_DIR): fl = open("%s/config/user_log.txt" % BASE_DIR, "rb") data_log = pickle.loads(fl.read()) fl.close() # 消费明细 if os.path.exists(r'%s/config/user_list.txt'% BASE_DIR): f_list = open("%s/config/user_list.txt" % BASE_DIR, "rb") data_list = pickle.loads(f_list.read()) f_list.close() else: data_list = [] # 消费明细增加 def sale_add(usercard,usermoney_input,action,state,bills,remarks,Counter=0,interest=0): global data_user today =datetime.date.today() for x_data in data_user: if x_data["usercard"] == usercard: date = x_data["Repayment_Date"] # 计算账单日 Statement_Date = today.replace(day=date) if today > Statement_Date: Statement_Date = Statement_Date + datetime.timedelta(days=+30) # 如果今天消费的日期 大于系统计算出来的账单日，则此笔消费的出账单为下个月 data_list_dic = {} data_list_dic["usercard"] = usercard data_list_dic["date"] = datetime.datetime.now() data_list_dic["money"] = usermoney_input data_list_dic["action"] = action # 1、信用卡取现 2、转账 3、消费 4、还款 data_list_dic["state"] = state # 1、已欠款 2、已还清 data_list_dic["bills"] = bills # 1、已出账单 2、未出账单 data_list_dic["Counter"] = Counter # 手续费 data_list_dic["interest"] = interest # 利息 data_list_dic["Statement_Date"] = Statement_Date # 出账单日 data_list_dic["remarks"] = remarks data_list.append(data_list_dic) f_list = open("%s/config/user_list.txt" % BASE_DIR, "wb") pickle.dump(data_list,f_list) f_list.close() # 查询余额函数 def select_balance(usercard,flage): # 定义全局变量 global data_user if flage =="2": for x_name in data_user: # 匹配用户信息 if x_name["usercard"] == usercard: if x_name["new_money"] - x_name["total_money"] >=0: print(""" 您当前可用余额为:%s元,当前信用卡授权额度为%s元，出账单日为每月%s号,当前没有欠款，谢谢！ """%(x_name["new_money"],x_name["total_money"],x_name["Repayment_Date"])) else: print(""" 您当前可用余额为:%s元,当前信用卡授权额度为%s元，出账单日为每月%s号，当前总欠款%s元，请按时还款！ """%(x_name["new_money"],x_name["total_money"],x_name["Repayment_Date"],(x_name["total_money"]-x_name["new_money"]) )) else: print("请求参数出错，请检查后在试！") # 查询ATM操作日志 def select_log(): print("ATM操作日志：") for index,x_log in enumerate(data_log): x_date = x_log["cz_time"] cz_user = x_log["cz_usercard"] x_action = x_log["cz_action"] x_money = x_log["cz_money"] x_user = x_log["cz_adduser"] print("-" *200) print("序号:[%s]|操作日期:[%s]|操作用户:[%s]｜动作:[%s]|涉及金额:%s元|对象用户:[%s]" %(index+1,x_date,cz_user,x_action,x_money,x_user)) # ATM 取现： def Take_Money(usercard,usermoney_input,flage): global data_user,data_list for x_name in data_user: if x_name["usercard"] == usercard: # 判断可用额度是否满足取现的金额 if x_name["new_money"] - usermoney_input >= 0: Counter = usermoney_input*0.05 # 取现手续费 x_name["new_money"] -= (usermoney_input + Counter) # 写日志 User_Action(usercard,flage,usercard,"信用卡取款",usermoney_input) # 写消费明细 if x_name["new_money"] >= x_name["total_money"]: sale_add(usercard,usermoney_input,"1","2","2","取现",Counter) else: sale_add(usercard,usermoney_input,"1","1","2","取现",Counter) print("取现[%s],成功！"%(usermoney_input)) else: print("您当前取现额度超过你信用卡的可用额度，不能取现！") f = open("%s/config/user_acc.txt" % BASE_DIR, "wb") pickle.dump(data_user, f) f.close() # 信用卡还款 def Card_Payment(usercard,money,flage="3"): global data_user,data_list for x_name in data_user: if x_name["usercard"] == usercard: x_name["new_money"] += money if flage != "3": print("还款入账成功") sale_add(usercard,money,"4","2","2","还款入账") # 提前全额还款处理 if x_name["new_money"] >= x_name["total_money"]: for list_name in data_list: if list_name ["usercard"] == usercard: if list_name ["state"] != "2": list_name ["state"] = "2" f_list = open("%s/config/user_list.txt" % BASE_DIR, "wb") pickle.dump(data_list,f_list) f_list.close() # 提前部分还款处理 else: for list_name in data_list: if list_name ["usercard"] == usercard: if list_name ["state"] != "2": if list_name["money"] < money: money -= list_name["money"] list_name["state"] = "2" f_list = open("%s/config/user_list.txt" % BASE_DIR, "wb") pickle.dump(data_list,f_list) f_list.close() # 写还款日志 User_Action(usercard,flage,usercard,"信用卡还款",money) f = open("%s/config/user_acc.txt" % BASE_DIR, "wb") pickle.dump(data_user, f) f.close() # 账户转账 def Transfer(usercard,flage,usercard_input,usermoney_input): global data_user for input_name in data_user: if input_name["usercard"] == usercard: input_name["new_money"] -= usermoney_input # 写消费明细 if input_name["new_money"] >= input_name["total_money"]: sale_add(usercard,usermoney_input,"2","2","2","转账") else: sale_add(usercard,usermoney_input,"2","1","2","转账") # 写日志 User_Action(usercard,flage,usercard_input,"信用卡转账",usermoney_input) # 调用转账还款入账函数 Card_Payment(usercard_input,usermoney_input) print("转账成功！") f = open("%s/config/user_acc.txt" % BASE_DIR, "wb") pickle.dump(data_user, f) f.close() # 账单明细查询 def select_bill(usercard,bill_date): global data_list # 已出账单明细 have_bill = [] # 未出账单明细 No_bills = [] # 未出账单还款入账 repayment = [] # 未出账单已还清 Already = [] for index,x_name in enumerate(data_list): if x_name["usercard"] == usercard: # 欠款未出账单消费明细 if x_name["state"] == "1" and x_name["bills"] == "2": No_bills.append(data_list[index]) # 欠款已出账单消费明细 elif x_name["state"] == "1" and x_name["bills"] == "1": have_bill.append(data_list[index]) # 转账还款入账明细 elif x_name["bills"] == "2" and x_name["action"] == "4": repayment.append(data_list[index]) # 已还清未出账单明细 elif x_name["bills"] == "2" and x_name["state"] == "2": Already.append(data_list[index]) if len(have_bill) != 0: print("以下消费为已出账单未还清明细：") for index,have_bill_list in enumerate(have_bill): x_date = have_bill_list["date"] x_action = have_bill_list["remarks"] x_money = have_bill_list["money"] x_Counter = have_bill_list["Counter"] x_Statement_Date = have_bill_list["Statement_Date"] x_state = "未还清" x_interest = have_bill_list["interest"] print("-" *150) print("序号:[%s]|日期:[%s]|类型:[%s]｜金额:[%s]元|手续费:%s元|状态:[%s]|此笔交易出账单日[%s]|累计利息为:%s元" %(index+1,x_date,x_action,x_money,x_Counter,x_state,x_Statement_Date,x_interest)) if len(No_bills) != 0: print("以下消费为未出账单未还清明细：") for index,No_bills_list in enumerate(No_bills): x_date = No_bills_list["date"] x_action = No_bills_list["remarks"] x_money = No_bills_list["money"] x_Counter =No_bills_list["Counter"] x_Statement_Date = No_bills_list["Statement_Date"] x_state = "未还清" print("-" *100) print("序号:[%s]|日期:[%s]|类型:[%s]｜金额:[%s]元|手续费:%s元|状态:[%s]|此笔交易出账单日[%s]" %(index+1,x_date,x_action,x_money,x_Counter,x_state,x_Statement_Date)) if len(repayment) != 0: print("以下为未出账单还款明细：") for index,repayment_list in enumerate(repayment): x_date = repayment_list["date"] x_action = repayment_list["remarks"] x_money = repayment_list["money"] x_Counter = repayment_list["Counter"] x_state = "还款入账" print("-" *100) print("序号:[%s]|日期:[%s]|类型:[%s]｜金额:[%s]元|手续费:%s元|状态:[%s]" %(index+1,x_date,x_action,x_money,x_Counter,x_state)) if len(Already) != 0: print("以下为未出账单已还款或无需还款消费明细：") for index,Already_repayment_list in enumerate(Already): x_date = Already_repayment_list["date"] x_action = Already_repayment_list["remarks"] x_money = Already_repayment_list["money"] x_Counter = Already_repayment_list["Counter"] x_state = "正常" print("-" *100) print("序号:[%s]|日期:[%s]|类型:[%s]｜金额:[%s]元|手续费:%s元|状态:[%s]" %(index+1,x_date,x_action,x_money,x_Counter,x_state))
在处理利息计算方面，这是我想到的方法：
#!/usr/bin/env python3.5 # -*-coding:utf8-*- import datetime,pickle,os,sys BASE_DIR = os.path.dirname(os.path.dirname(os.path.abspath(__file__))) sys.path.append(BASE_DIR) # 加载利息计算日志文件 if os.path.exists(r'%s/config/calculation_log.txt'% BASE_DIR): f_calculation = open("%s/config/calculation_log.txt" % BASE_DIR, "rb") data_calculation = pickle.loads(f_calculation.read()) # 利息初始化文件 # print(data_calculation) f_calculation.close() else: data_calculation = [] # 加载用户信息 if os.path.exists(r'%s/config/user_acc.txt'% BASE_DIR): f = open("%s/config/user_acc.txt" % BASE_DIR, "rb") data = pickle.loads(f.read()) f.close() else: data = [] # 加载消费明细 if os.path.exists(r'%s/config/user_list.txt'% BASE_DIR): f_list = open("%s/config/user_list.txt" % BASE_DIR, "rb") data_list = pickle.loads(f_list.read()) f_list.close() else: data_list = [] # 初始化利息计算文件列表 def calculation_computer(): global data, data_calculation, data_list # 获取今天时间 today = datetime.date.today() # 取昨天的时间 yesterday = datetime.date.today()+datetime.timedelta(days=-1) for user_data in data: if user_data["flage"] == "2": # 获取 账单日 x_data_date = user_data["Repayment_Date"] # 生成账单日期 x_data_time = today.replace(day=x_data_date) # 如果文件内容不为空 if len(data_calculation) != 0: for y_data in data_calculation: # 如果信用卡卡号在文件字典里存在关键字 if user_data["usercard"] in y_data.keys(): for x in y_data[user_data["usercard"]]: # 如果该字典里存在今天新加的记录则跳出 if x["date"] == today: break # 如果字典里的日期与昨天有误差则进行增加 elif yesterday > y_data[user_data["usercard"]][-1]["date"]: date = y_data[user_data["usercard"]][-1]["date"] + datetime.timedelta(days=1) y_data[user_data["usercard"]].append({"date":date,"money":0,"computer":"1"}) continue else: y_data[user_data["usercard"]].append({"date":today,"money":0,"computer":"1"}) break # 如果全部循环后找不到key 则新增 else: # 重复数据判断 list_data = [] for y_data in data_calculation: for k in y_data: list_data.append(k) # 如果要添加的数据在利息初始化文件中不存大 if user_data["usercard"] not in list_data: if today > x_data_time: new_dic = {user_data["usercard"]:[{"date":x_data_time,"money":0,"computer":"1"}]} data_calculation.append(new_dic) elif today < x_data_time: new_dic = {user_data["usercard"]:[{"date":today,"money":0,"computer":"1"}]} data_calculation.append(new_dic) # 将所有利息数据写入文件中 fl = open("%s/config/calculation_log.txt" % BASE_DIR, "wb") pickle.dump(data_calculation, fl) fl.close() # 如果文件内容为空 else: # 时间按账单日开始记录 if today > x_data_time: new_dic = {user_data["usercard"]:[{"date":x_data_time,"money":0,"computer":"1"}]} data_calculation.append(new_dic) elif today < x_data_time: new_dic = {user_data["usercard"]:[{"date":today,"money":0,"computer":"1"}]} data_calculation.append(new_dic) fl = open("%s/config/calculation_log.txt" % BASE_DIR, "wb") pickle.dump(data_calculation, fl) fl.close() calculation_computer() # 出账单及利息计算 def computer(): global data, data_calculation, data_list # 调用利息初始化文件 calculation_computer() # 获取今天时间 today = datetime.date.today() for x_data in data: if x_data["flage"] == "2": x_usercard = x_data["usercard"] # 获取计算信用卡卡号 # 获取账单还款到期日，每月10号 due_date = today.replace(day=10) # 如果到期还款日小于账单日，当前利息计算日 ＝ 当月计算利息日－30天 xx_time = due_date + datetime.timedelta(days=-30) # 加载消费明细账单 for z_data in data_list: # 定位当前用户所有没有出账单的明细,如果今天大于或等于该笔消费出账单日 if z_data["usercard"] == x_usercard and z_data["bills"] == "2" and today >= z_data["Statement_Date"]: # 则更改当前该笔消费为已出账单 z_data["bills"] = "1" f_list_computer = open("%s/config/user_list.txt" % BASE_DIR, "wb") pickle.dump(data_list, f_list_computer) f_list_computer.close() # 调用利息计算初始化文件 for xy_data in data_calculation: # 定位到当前用户下所有记账日 if x_usercard in xy_data.keys(): for date in xy_data[x_usercard]: if date["computer"] == "1": # 定位到当前用户下所有出账单的未还清的消费记录 # 初始化记账日所有利息 counter = 0 for z1_data in data_list: # 如果记账日没有清算 if z1_data["usercard"] == x_usercard and z1_data["bills"] == "1": # 如果记账日大于最后还款日大于账单日 if date["date"] > due_date > z1_data["Statement_Date"] and z1_data["state"] == "1": z1_data["interest"] += (z1_data["money"]+z1_data["Counter"])*0.0005 counter += (z1_data["money"]+z1_data["Counter"])*0.0005 # 如果记账日小于出账单日或小于最后还款日 elif date["date"] > xx_time > z1_data["Statement_Date"] and z1_data["state"] == "1": z1_data["interest"] += (z1_data["money"]+z1_data["Counter"])*0.0005 counter += (z1_data["money"]+z1_data["Counter"])*0.0005 x_data["new_money"] -= counter # 更新当前用户的余额 f_list_computer = open("%s/config/user_list.txt" % BASE_DIR, "wb") pickle.dump(data_list,f_list_computer) f_list_computer.close() date["computer"] = "2" continue break fl = open("%s/config/calculation_log.txt" % BASE_DIR, "wb") pickle.dump(data_calculation, fl) fl.close() fx = open("%s/config/user_acc.txt" % BASE_DIR, "wb") pickle.dump(data, fx) fx.close()
