Python实现信用卡系统(支持购物、转账、存取钱)

import osBASE_DIR = os.path.dirname(os.path.dirname(__file__)) #配置文件的上层目录DB_DIR=os.path.join(BASE_DIR,'db')    #数据文件夹ADMIN=os.path.join(DB_DIR,'admin')ALL_USERS=os.path.join(DB_DIR,'allusrs')A=os.path.join(BASE_DIR,'db','s')LOG=os.path.join(BASE_DIR,'log')TRANSACTION={  'repay':{'action':'plus','interest':0}, #还款  'withdraw':{'action':'minus','interest':0.05},#取现  'transfer':{'action':'minus','interest':0.05},#转账  'consume':{'action':'minus','interest':0},#消费  'saving':{'action':'plus','interest':0} #存款}

class buy:  goods=[      {"name": "电脑", "price": 1999},      {"name": "鼠标", "price": 10},      {"name": "游艇", "price": 20},      {"name": "美女", "price": 998},    ]  def __init__(self,money,consumption,shopping_cart,):    self.money=money    self.consumption=consumption    self.shopping_cart=shopping_cart  def gouwu(self): #购物模块    print('您的当前余额为：%d' %self.money)    num=int(input('请输入商品序号：'))    num-=1    if self.goods[num]["name"] in self.shopping_cart.keys():        #goods[num]["name"]取商品名      self.shopping_cart[self.goods[num]["name"]]['n']+=1         #商品数量+1    else:      self.shopping_cart[self.goods[num]["name"]]={"price":self.goods[num]["price"],'n':1,} # 创建购物车字典  {keys{"price"：价格,数量：1}}    self.money-=self.shopping_cart[self.goods[num]["name"]]["price"]*self.shopping_cart[self.goods[num]["name"]]['n']    #单价*数量    self.consumption+=self.shopping_cart[self.goods[num]["name"]]["price"]*self.shopping_cart[self.goods[num]["name"]]['n']  def yichu(self): #移除购物车模块    c=int(input(' 请输入0/1选择是否移除购物车商品, 移除请输入1:'))    if c==1:      e=int(input(' 请输入要移除的商品序号:'))      d=self.goods[e-1]      if d in self.shopping_cart.keys():       #判断要移除的商品是否在购物车内        self.shopping_cart.remove(d)     #移除商品        self.money=self.money+self.goods[self.goods.index(d)]["price"]       #余额增加        self.consumption=self.consumption-self.goods[self.goods.index(d)]["price"] #消费总额减少      else:        print('商品不存在')  def chongzhi(self): #充值模块    pay=int(input('请输入充值金额'))    self.money=self.money+pay    print('您的当前余额为：%d' % self.money)  #显示当前余额  def main(self):    print('商品清单：')    for m,n in enumerate(self.goods,1):      print(m)      for v in n.values():        print(v)      print('=============')    #消费总额清零    self.consumption=0    buy=True #定义默认一直购物    while buy:      price=0 #定义初始价格      b=1 #定义默认不退出购物或充值状态      if self.money>=price:    #消费模块；金钱大于货物价格时，才能开始购物        while self.money>=price:    #计价模块，有钱就可以一直购物          self.gouwu()    #移除购物车商品模块          self.yichu()          if self.money>=0:            print('您的当前余额为：%d' %self.money)     #显示当前余额            b=int(input(' 请输入0/1选择是否继续购物, 购物请输入1:'))            if b==0:    #              break  #退出计价模块        if b==0:      #如果不购物          break     #不购物退出整个购物程序    #充值模块      else:        while self.money<price:     #金钱不足，可多次充钱，直到能买得起货物          a=int(input(' 您的余额不足，请输入0/1选择是否充值，充值请输入1:'))          if a==1:            self.chongzhi()          else:            break      #退出充值模块          if a==0:            break      #不充值退出程序    #打印购物车商品名、商品价格、消费总额、余额    print('您的消费清单为：')    for m,n in self.shopping_cart.items():      print(m,n['price'],n['n'])          #打印消费清单      print('=============')    print('您的当前余额为：%d,您的消费总额为：%d' % (self.money,self.consumption) )      #打印消费总额    return self.consumption

class Atm:  credit=15000 #信用卡额度  def __init__(self,balance,debt,remaining_debt,interest,saving,id):    self.id=id       #信用卡id    self.balance=balance   #信用卡可用金额    self.debt=debt      #总欠款    self.remaining_debt=remaining_debt #剩余欠款    self.interest=interest   #手续费    self.saving=saving   #存款    self.now_time=time.strftime("%Y-%m-%d %H:%M:%S")    self.now_data=time.strftime("%Y-%m")    self.struct_time=time.gmtime(time.time())    if self.struct_time.tm_mday>22:      self.now_data=self.struct_time.tm_year+'-'+str(int(self.struct_time.tm_mon)+1)  def account_info(self):#打印账户信息    return '账户id%s 信用卡额度%s;信用卡可用金额%s;剩余欠款%s;'%(self.id,self.credit,self.balance,self.remaining_debt,)  def ret_account_info(self):    return [self.id,self.credit,self.balance,self.debt,self.remaining_debt,self.interest]  def repay(self,amount):#还款    self.handel_money('repay',amount)  def withdraw(self,amount): #取现    self.handel_money('withdraw',amount)  def transfer(self,amount): #转账    self.handel_money('transfer',amount)  def consume(self,amount): #消费    self.handel_money('consume',amount)  def saves(self,amount):    self.handel_money('saving',amount)  def transaction(self,a,amount):    dic={      '1':self.repay,      '2':self.withdraw,      '3':self.transfer,      '4':self.consume,      '5':self.saves    }    print("debug: a:",type(a),"amount:",type(amount))    print(a)    print(dic[a])    print(dic["5"])    dic[a](amount)    print("end debug")  def handel_money(self,transaction,amount): #交易类型，    amount=int(amount)    interest=amount*settings.TRANSACTION[transaction]['interest'] #手续费计算    if settings.TRANSACTION[transaction]['action']=='plus':      if amount<=self.remaining_debt:        self.remaining_debt-=amount        self.balance+=amount      else:        self.balance+=self.remaining_debt        self.remaining_debt=0        self.saving+=amount-self.remaining_debt    else:      if self.saving<amount:        self.saving=0        a=amount-self.saving        self.balance-=a+interest-self.saving        # self.debt+=amount+interest        self.remaining_debt+=a+interest    a='time:%s id:%s transaction: %s amount:%s interest %s /n'%(self.now_time,self.id,transaction,amount,interest)    print(a)    mulu=os.path.join(settings.ALL_USERS,self.id)    path_name_liushui=os.path.join(mulu,str(self.id)+'name_liushui',str(self.now_data))    with open(path_name_liushui,'a')as f:     #记录流水信息      f.write(a)    s=[self.balance,self.debt,self.remaining_debt,self.interest,self.saving,]   #更新基本信息    path_name_base=os.path.join(mulu,str(self.id)+'name_base')    pickle.dump(s,open(path_name_base,'wb'))

#!/usr/bin/env python# -*- coding: utf-8 -*-import sys,osimport hashlibimport pickleimport timeimport socketserversys.path.append(os.path.dirname(os.path.dirname(__file__)))from config import settingsfrom lib import modulesfrom lib.modules import *class Myserver(socketserver.BaseRequestHandler):  def md5(self,pwd):    '''    对密码进行加密    :param pwd: 密码    :return:    '''    hash=hashlib.md5(bytes('xx7',encoding='utf-8'))    hash.update(bytes(pwd,encoding='utf-8'))    return hash.hexdigest()  def login(self,usrname,pwd,x):    '''    登陆    :param usrname: 用户名    :param pwd: 密码    :return:是否登陆成功    '''    conn=self.request    if x=='1':      path_name_pwd=os.path.join(settings.ADMIN,usrname)    else:      mulu=os.path.join(settings.ALL_USERS,usrname)      path_name_pwd=os.path.join(mulu,usrname+'name_pwd')    s=pickle.load(open(path_name_pwd,'rb'))    if usrname in s:       if s[usrname]==self.md5(pwd):    #和加密后的密码进行比较        return True       else:        return False    else:      return False  def regist(self,usrname,pwd,x):    '''    注册    :param usrname: 用户名    :param pwd: 密码    :return:是否注册成功    '''    conn=self.request    if x=='1':      mulu=os.path.join(settings.ADMIN,usrname)    else:      mulu=os.path.join(settings.ALL_USERS,usrname)    if os.path.exists(mulu):       return False    else:      os.mkdir(mulu)      s={}      s[usrname]=self.md5(pwd)      path_name_pwd=os.path.join(mulu,usrname+'name_pwd')      pickle.dump(s,open(path_name_pwd,'wb'))      path_name_base=os.path.join(mulu,usrname+'name_base')      pickle.dump([15000,{},0,0,0],open(path_name_base,'wb'))      path_name_liushui=os.path.join(mulu,usrname+'name_liushui')      os.mkdir(path_name_liushui)      return True  def user_identity_authentication(self,usrname,pwd,ret,x):    '''    判断注册和登陆，并展示用户的详细目录信息，支持cd和ls命令    :return:    '''    conn=self.request    if ret=='1':      r=self.login(usrname,pwd,x)      if r:        conn.sendall(bytes('y',encoding='utf-8'))      else:        conn.sendall(bytes('n',encoding='utf-8'))    elif ret=='2':      # print(usrname,pwd)      if x=='1':        r=self.regist(usrname,pwd,x)      else:  #用户注册        s=[0,1]        pickle.dump(s,open(settings.A,'wb'))        while True:          ret=pickle.load(open(settings.A,'rb'))          if ret[0]==0:            time.sleep(30)            continue          elif ret[0]==1 or ret[0]==2:            break #默认值已更改，银行管理员已操作        if ret[0]==1: #如果管理员同意          r=self.regist(usrname,pwd,x)        else:          r=0        s=[0,0]        pickle.dump(s,open(settings.A,'wb'))      if r:        conn.sendall(bytes('y',encoding='utf-8'))      else:        conn.sendall(bytes('n',encoding='utf-8'))  def interactive(self,usrname): #进行交互    conn=self.request    while True:      c=conn.recv(1024) #接收用户交互选项      r=str(c,encoding='utf-8')      mulu=os.path.join(settings.ALL_USERS,usrname)      path_name_base=os.path.join(mulu,usrname+'name_base')      s=pickle.load(open(path_name_base,'rb'))      #打印账户信息      obj=modules.Atm(s[0],s[1],s[2],s[3],s[4],usrname) #Atm对象      a=obj.account_info() #接收账户信息      conn.sendall(bytes(a,encoding='utf-8'))      b=obj.ret_account_info()      if r== '4':        buy_obj=modules.buy(b[2],0,{})        amount=buy_obj.main()      elif r=='q':        break      else:        s=conn.recv(1024)        amount=str(s,encoding='utf-8')      obj.transaction(r,amount)    pass  def handle(self):    conn=self.request    x=conn.recv(1024)    x=str(x,encoding='utf-8')    conn.sendall(bytes('收到用户类别',encoding='utf-8'))    while True:      if x=='1' or x=='2':        b=conn.recv(1024)        ret=str(b,encoding='utf-8')        conn.sendall(bytes('b ok',encoding='utf-8'))        c=conn.recv(1024)        r=str(c,encoding='utf-8')        usrname,pwd=r.split(',')        print(usrname,pwd)        self.user_identity_authentication(usrname,pwd,ret,x) #登陆或注册验证        if x=='2':#普通用户身份验证成功后          self.interactive(usrname)          pass        break      elif x=='q':        breakif __name__=='__main__':  sever=socketserver.ThreadingTCPServer(('127.0.0.1',9999),Myserver)  sever.serve_forever()

#!/usr/bin/env python# -*- coding: utf-8 -*-'''本程序作为用户或银行管理员的入口，其中c=1代表银行管理员，c=2代表普通用户'''import pickleimport sysimport timeimport osimport socketsys.path.append(os.path.dirname(os.path.dirname(__file__)))from config import settingsfrom lib import *from lib.modules import *def login(usrname,pwd):  '''  登陆  :param usrname:用户名  :param pwd:密码  :return:是否登陆成功  '''  obj.sendall(bytes(usrname+','+pwd,encoding='utf-8'))  ret=obj.recv(1024)  r=str(ret,encoding='utf-8')  if r=='y':    return 1  else:    return 0def regist(usrname,pwd,x):  '''  注册  :param usrname:用户名  :param pwd:密码  :return:是否注册成功  '''  obj.sendall(bytes(usrname+','+pwd,encoding='utf-8'))  ret=obj.recv(1024)  r=str(ret,encoding='utf-8')  if r=='y':    return 1  else:    return 0def user_identity_authentication(usrname,pwd,x):  '''  选择登陆或注册，展示用户的详细目录信息，支持cd和ls命令  :return:  '''  a=input('请选择1.登陆 2.注册')  obj.sendall(bytes(a,encoding='utf-8'))  obj.recv(1024)  if a=='1':    ret=login(usrname,pwd)    if ret:      print('登陆成功')      return 1    else:      print('用户名或密码错误')      return 0  elif a=='2':    ret=regist(usrname,pwd,x)    if ret:      print('注册成功')      return 1    else:      print('用户名已存在或银行管理员拒绝')      return 0def main(x):  usrname=input('请输入用户名')  pwd=input('请输入密码')  if user_identity_authentication(usrname,pwd,x): #如果验证身份成功    if x=='1':  #处理用户注册信息      while True:        s=pickle.load(open(settings.A,'rb'))        if s[1]==0:          time.sleep(30)          continue        elif s[1]==1:          while True:            a=input('用户请求注册，输入1同意，2拒绝')            if a=='1':              s=[1,0]              pickle.dump(s,open(settings.A,'wb'))              break            elif a=='2':              s=[2,0]              pickle.dump(s,open(settings.A,'wb'))              break            else:              print('输入有误')          break    else: #普通用户登陆后      interactive() #进行交互def interactive():  while True:    a=input('请选择 1.还款 2.取现 3.转账 4.消费 5.存钱 q退出')    obj.sendall(bytes(a,encoding='utf-8'))    r=obj.recv(1024) #接收账户信息    ret=str(r,encoding='utf-8')    print(ret)    if a !='4'and a !='q':      b=input('请输入金额')      obj.sendall(bytes(b,encoding='utf-8'))    elif a=='q':      breakobj=socket.socket() #创建客户端socket对象obj.connect(('127.0.0.1',9999))while True:  x=input('请选择1.银行管理员 2.用户 q、退出')  obj.sendall(bytes(x,encoding='utf-8'))  obj.recv(1024)  #确认收到用户类别  if x=='1' or x=='2':    main(x)    break  elif x=='q':    break  else:    print('输入有误请重新输入')obj.close()

#!/usr/bin/env python# -*- coding:utf-8 -*-import os,sysimport json,pickleimport timesys.path.append(os.path.dirname(os.path.dirname(__file__)))from config import settingsdef main():  card_list = os.listdir(settings.ALL_USERS)  for card in card_list:    basic_info = pickle.load(open(os.path.join(settings.ALL_USERS, card, card+'name_base')))    struct_time = time.localtime()    # 循环账单列表，为每月的欠款计息。并写入到当月账单中    for item in basic_info['debt']:      interest = item['total_debt'] * 0.0005      if basic_info[4] >= interest:        basic_info[4] -= interest      else:        temp = interest - basic_info[4]        basic_info[4]=0        basic_info[0] -= temp        pickle.dump(            basic_info,            open(os.path.join(settings.ALL_USERS, card, card+'name_base'),'w')       )    # 如果当前等于10号(9号之前)    #  当前余额为负值，则将值添加到账单列表中，开始计息，同时，本月可用额度恢复。    date = time.strftime("%Y-%m-%d")    if struct_time.tm_mday == 11 and basic_info[2]>0:      dic = {'date': date,          "total_debt": basic_info[2],          "balance_debt": basic_info[2],          }      basic_info[1].append(dic)      # 恢复可用额度      basic_info[0] = 15000    pickle.dump(      basic_info,      open(os.path.join(settings.ALL_USERS, card, card+'name_base'),'w')       )def run():  main()