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这篇CFSDN的博客文章python 实现网上商城,转账,存取款等功能的信用卡系统由作者收集整理,如果你对这篇文章有兴趣,记得点赞哟.
1、要求 。
2、思路 。
1.购物类buy 。
接收 信用卡类 的信用卡可用可用余额, 。
返回消费金额 。
2.信用卡(ATM)类 。
接收上次操作后,信用卡可用余额,总欠款,剩余欠款,存款 。
其中: 1.每种交易类型不单独处理金钱,也不单独记录流水账,每种交易类型调用处理金钱的函数(传入交易类型,交易金额) 。
2.处理金钱的函数,调用配置文件中关于每种交易类型的加减钱和利率 。
返回本次操作后信用卡可用余额,总欠款,剩余欠款,存款 。
3.客户端 。
银行管理员注册登陆 。
普通用户注册登陆 。
发送需求:注册、登陆、交易类型、交易金额 。
4.服务器端 。
调用购物类,创建购物对象(购物接口) 。
调用信用卡(ATM)类,处理还款,转账等操作,对利息按月记录,写入文件 。
5.定时任务 。
定时执行程序,以计算利息.
3、代码 。
3.1配置文件 。
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import
os
BASE_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
}
|
3.2公共类 。
3.2.1购物类 。
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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
|
3.2.2 信用卡ATM类 。
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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'
))
|
3.3服务器端:
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#!/usr/bin/env python
# -*- coding: utf-8 -*-
import
sys,os
import
hashlib
import
pickle
import
time
import
socketserver
sys.path.append(os.path.dirname(os.path.dirname(__file__)))
from
config
import
settings
from
lib
import
modules
from
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'
:
break
if
__name__
=
=
'__main__'
:
sever
=
socketserver.ThreadingTCPServer((
'127.0.0.1'
,
9999
),Myserver)
sever.serve_forever()
|
3.4 用户端 。
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|
#!/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
pickle
import
sys
import
time
import
os
import
socket
sys.path.append(os.path.dirname(os.path.dirname(__file__)))
from
config
import
settings
from
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
0
def
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
0
def
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
0
def
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'
:
break
obj
=
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()
|
3.5定时任务 。
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2
3
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|
#!/usr/bin/env python
# -*- coding:utf-8 -*-
import
os,sys
import
json,pickle
import
time
sys.path.append(os.path.dirname(os.path.dirname(__file__)))
from
config
import
settings
def
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()
|
以上就是用python开发网上商城信用卡系统,需要的同学可以参考下.
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