先定义类：
银行卡类
class Card:
def __init__(self,cid,pwd):
self.cid = cid
self.pwd = pwd
self.money = 0
self.islock = False
管理员类class Admin:
def __init__(self,name = 'admin',password = '123456'):
self.name = name
self.password = password
def welcome(self):
print('欢迎使用xx银行系统')
#设置登录
def login(self):
name = input('请输入您的用户名:')
password = input('请输入您的密码:')
if name == self.name and password == self.password:
return True
else:
return False
#设置菜单界面
def menu(self):
print('建户【0】 销户【1】 查看余额【2】 存款【3】 取款【4】')
print('转账【5】 锁卡【6】 解锁【7】 用户信息【8】 退出【9】')
用户类import os
import pickle
class User:
def __init__(self,name,uid,card):
self.name = name
self.uid = uid
self.card = card
def __str__(self):
return '姓名:{} 身份证号:{} 银行卡:{}'.format(self.name,self.uid,self.card.cid)
#保存用户信息到文件中
@staticmethod
def save_info(userinfo):
#拼接要存放信息的目录
pathname = os.path.join(os.getcwd(),'user_info.db')
with open(pathname,'wb') as fp:
pickle.dump(userinfo,fp)
@staticmethod
def load_info():
pathname = os.path.join(os.getcwd(),'user_info.db')
if os.path.exists(pathname):
with open(pathname,'rb') as fp:
ret = pickle.load(fp)
return ret
else:
return {}
银行系统功能类from help import Helper
from user import User
from card import Card
class Operate:
def __init__(self,userinfo={}):
self.userinfo = userinfo
#设置银行系统的各种功能
def new_user(self):
name = input('请输入您的名字:')
uid = input('请输入您的身份证号:')
pwd = input('请输入您的银行卡密码:')
#生成银行卡号
cid = Helper.generate_card_cid()
#加密银行卡密码
pwd = Helper.encry_pwd(pwd)
#创建银行卡和用户对象
card = Card(cid,pwd)
user = User(name,uid,card)
self.userinfo[cid] = user
#保存用户信息
User.save_info(self.userinfo)
print('开户成功!')
def del_uesr(self):
while True:
cid = input('请输入您的银行卡号:')
if cid:
user = self.userinfo[cid]
count = 0
while True:
pwd = input('请输入您的银行卡密码:')
if Helper.check_pwd(pwd,user.card.pwd):
del self.userinfo[cid]
User.save_info(self.userinfo)
break
else:
print('密码错误，请重新输入')
count += 1
if count >= 3:
print('密码错误次数上限')
else:
print('银行卡号不存在，请重新输入')
def query_money(self):
cid = input('请输入您的银行卡号:')
user = self.userinfo[cid]
print('金额:{}'.format(user.card.money))
def save_money(self):
cid = input('请输入您的银行卡号:')
user = self.userinfo[cid]
count = 0
if user.card.islock:
print('您的银行卡已冻结')
return
while True:
pwd = input('请输入您的银行卡密码:')
if Helper.check_pwd(pwd,user.card.pwd):
money = int(input('请输入您要存入的金额:'))
user.card.money += money
User.save_info(self.userinfo)
print('存款成功')
break
else:
print('密码错误，请重新输入')
count += 1
if count >= 3:
print('密码错误次数已达上限')
def get_money(self):
cid = input('请输入您的银行卡号:')
user = self.userinfo[cid]
count = 0
if user.card.islock:
print('你的银行卡已冻结')
return
while True:
pwd = input('请输入您的银行卡密码:')
if Helper.check_pwd(pwd,user.card.pwd):
money = int(input('请输入您要获取的金额:'))
if user.card.money >= money:
user.card.money -= money
User.save_info(self.userinfo)
print('取款成功')
break
else:
print('余额不足')
else:
print('密码错误,请重新输入')
count += 1
if count >= 3:
print('密码错误已达上限,银行卡已锁定')
user.card.islock = True
#转账
def give_money(self):
cid = input('请输入您的银行卡号:')
user = self.userinfo[cid]
count = 0
if user.card.islock:
print('您的银行卡已冻结')
return
count = 0
while True:
pwd = input('请输入您的银行卡密码:')
if Helper.check_pwd(pwd,user.card.pwd):
cid1 = input('请输入您要转账的银行卡号:')
user1 = self.userinfo[cid1]
money = int(input('请输入您要转账的金额:'))
user.card.money -= money
user1.card.money += money
User.save_info(self.userinfo)
print('转账成功')
break
else:
print('密码错误，请重新输入')
count += 1
if count >= 3:
print('密码错误次数已达上限，银行卡已锁定')
user.card.islock = True
def lockcard(self):
pass
def nolock(self):
cid = input('请输入您要解锁的银行卡号:')
uid = input('请出示您的身份证:')
user = self.userinfo[cid]
if user.uid == uid:
user.card.islock = False
else:
print('身份证错误')
def show(self):
for i in self.userinfo:
print(self.userinfo[i])
再建立一个help模块用于对卡号密码的创建import hashlib
from random import randint
class Helper:
@staticmethod
#生成银行卡号
def generate_card_cid(length=8):
cid = ''
for i in range(length):
cid += str(randint(0,9))
return cid
#加密用户密码信息
@staticmethod
def encry_pwd(pwd):
m = hashlib.md5()
m.update(pwd.encode('utf-8'))
return m.hexdigest()
#核对用户信息
@staticmethod
def check_pwd(pwd,pwd_hash):
m = hashlib.md5()
m.update(pwd.encode('utf-8'))
return m.hexdigest() == pwd_hash
银行系统运行代码from admin import Admin
from operate import Operate
from user import User
from card import Card
#创建管理员对象
admin = Admin()
admin.welcome()
count = 0
while True:
ret = admin.login()
#加载用户信息
userinfo = User.load_info()
operate = Operate(userinfo)
if ret:
print('登录成功')
while True:
admin.menu()
num = int(input('请输入您要进行的操作:'))
isbreak = False
if num == 0:
operate.new_user()
if num == 1:
operate.del_uesr()
if num == 2:
operate.query_money()
if num == 3:
operate.save_money()
if num == 4:
operate.get_money()
if num == 5:
operate.give_money()
if num == 6:
operate.lockcard()
if num == 7:
operate.nolock()
if num == 8:
operate.show()
if num == 9:
isbreak = True
break
if isbreak == True:
break
else:
print('密码错误，请重新输入')
count += 1
if count >= 3:
print('密码错误上限')本文章为转载内容，我们尊重原作者对文章享有的著作权。如有内容错误或侵权问题，欢迎原作者联系我们进行内容更正或删除文章。
