1、程序执行代码:
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#Author by Andy
#_*_ coding:utf-8 _*_
import os,sys,time
Base_dir = os.path.dirname(os.path.dirname(os.path.abspath(__file__)))
sys.path.append(Base_dir)
str = "欢迎使用银行信用卡自助服务系统!\n"
for i in str :
sys.stdout.write(i)
sys.stdout.flush()
time.sleep( 0.3 )
while True :
print ( "1、管理人员入口。" )
time.sleep( 0.3 )
print ( "2、用户登录入口。" )
print ( "3、退出请按q!" )
choice = input ( ":" )
from core import main
Exit_flag = True
while Exit_flag:
user_choice = main.menu(choice)
if user_choice = = '1' :
main.get_user_credit()
elif user_choice = = '2' :
main.repayment()
elif user_choice = = '3' :
main.enchashment()
elif user_choice = = '4' :
main.change_pwd()
elif user_choice = = '5' :
main.transfer()
elif user_choice = = '6' :
main.billing_query()
elif user_choice = = '7' :
print ( "该功能正在建设中,更多精彩,敬请期待!" )
elif user_choice = = 'a' :
main.change_user_credit()
elif user_choice = = 'b' :
main.add_user()
elif user_choice = = 'c' :
main.del_user()
elif user_choice = = 'd' :
main.change_pwd()
elif user_choice = = 'q' or user_choice = = 'Q' :
print ( "欢迎再次使用,再见!" )
Exit_flag = False
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2、程序功能函数:
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#Author by Andy#_*_ coding:utf-8 _*
import json,sys,os,time,shutil
Base_dir = os.path.dirname(os.path.dirname(os.path.abspath(__file__)))
sys.path.append(Base_dir)
#定义认证装饰器
def auth(func):
def wrapper( * args, * * kwargs):
# print("请输入卡号和密码进行验证!")
f = open (Base_dir + '\data\\user_db.txt' , 'r' )
Log_file = open (Base_dir + '\logs\log.txt' , 'a+' , encoding = 'utf-8' )
Bill_log_file = open (Base_dir + '\logs\\bill_log.txt' , 'a+' , encoding = 'utf-8' )
func_name = func.__name__
Time_formate = '%Y-%m-%d %X'
start_time = time.strftime(Time_formate, time.localtime())
user_data = json.load(f)
count = 0
while count < 3 :
global user_id
global user_pwd
user_id = input ( '请输入您的卡号:' )
user_pwd = input ( '请输入您的密码:' )
if user_id in user_data:
if user_pwd = = user_data[user_id][ 'Password' ]:
Log_file.write(start_time + ' 卡号 %s 认证成功!\n' % user_id)
Log_file.flush()
time.sleep( 1 )
Log_file.close
keywords = func( * args, * * kwargs)
if func_name = = 'repayment' or func_name = = 'transfer' or func_name = = 'enchashment' :
Bill_log_file.write(start_time + ' 卡号 ' + user_id + ' 发起 ' + func_name + ' 业务,金额为: %s \n' % keywords)
Bill_log_file.flush()
time.sleep( 1 )
Bill_log_file.close
return keywords
else :
return keywords
else :
print ( '卡号或密码错误!请重新输入!' )
Log_file.write(start_time + ' 卡号 %s 认证失败!\n' % user_id)
Log_file.flush()
time.sleep( 1 )
Log_file.close
count + = 1
else :
print ( "卡号不存在,请确认!" )
if count = = 3 :
print ( "对不起,您已输错3三次,卡号已锁定!" )
Log_file.write(start_time + ' 卡号 %s 因连续三次验证失败而被锁定!\n' % user_id)
time.sleep( 1 )
Log_file.close
return wrapper
#定义菜单函数,根据不同用户显示不通菜单。
def menu(choice):
if choice = = '2' :
print ( "请选择服务类别:\n"
"1、查询信用额度。\n"
"2、信用卡还款。\n"
"3、信用卡提现。\n"
"4、修改口令。\n"
"5、信用卡转账。\n"
"6、信用卡账单查询。\n"
"7、轻松购物。\n"
"8、退出请按q!\n" )
service_items = input ( '-->' )
elif choice = = '1' :
print ( "请选择服务类别:\n"
"a、修改用户信用额度。\n"
"b、新增信用卡用户。\n"
"c、删除信用卡用户。\n"
"d、修改用户口令。\n"
"e、退出请按q!\n" )
service_items = input ( '-->' )
else :
print ( "感谢使用,祝生活愉快!" )
exit()
return service_items
# 定义备份用户数据文件函数
def back_up_file():
Time_formate = '%Y-%m-%d'
Sys_time = time.strftime(Time_formate, time.localtime())
shutil.copy(Base_dir + "\data\\user_db.txt" , Base_dir + "\data\\user_db--" + Sys_time + ".bak.txt" )
#定义获取用户数据信息函数
def get_user_data():
with open (Base_dir + "\data\\user_db.txt" , 'r+' ,encoding = 'utf-8' ) as f:
user_data = json.load(f)
return user_data
#定义用户数据变量
user_data = get_user_data()
#定义查询信用额度函数
@auth
def get_user_credit():
user_credit = user_data[user_id][ 'Credit' ]
print ( "您目前的信用额度为:%s元\n"
% (user_credit))
time.sleep( 2 )
return user_credit
#定义信用卡还款函数
@auth
def repayment():
user_data = get_user_data()
user_credit = int (user_data[user_id][ 'Credit' ])
user_balance = int (user_data[user_id][ 'Balance' ])
user_bill = user_credit - user_balance
print ( "您目前需要还款金额为:%s元.\n" % user_bill)
Exit_flag = True
while Exit_flag:
repayment_value = input ( "请输入还款金额:" )
if repayment_value.isdigit():
repayment_value = int (repayment_value)
user_data[user_id][ 'Balance' ] = user_data[user_id][ 'Balance' ] + repayment_value
f = open (Base_dir + "\data\\user_db.txt" , 'r+' , encoding = 'utf-8' )
json.dump(user_data, f)
f.close()
print ( "恭喜,还款成功!" )
print ( "您目前需要还款金额为:%s元.\n" % (user_data[user_id][ 'Credit' ] - user_data[user_id][ 'Balance' ]))
time.sleep( 1 )
Exit_flag = False
return repayment_value
else :
print ( "请输入正确的金额!" )
#定义信用卡提现函数
@auth
def enchashment():
user_credit = user_data[user_id][ 'Credit' ]
print ( "你可用的取现额度为:%s" % user_credit)
Exit_flag = True
while Exit_flag:
enchashment_value = input ( "请输入您要取现的金额:" )
if enchashment_value.isdigit():
enchashment_value = int (enchashment_value)
if enchashment_value % 100 = = 0 :
if enchashment_value < = user_credit:
user_data[user_id][ 'Balance' ] = user_credit - enchashment_value
f = open (Base_dir + "\data\\user_db.txt" , 'r+' , encoding = 'utf-8' )
json.dump(user_data, f)
f.close()
print ( "取现成功,您目前的可用额度为:%s" % user_data[user_id][ 'Balance' ])
time.sleep( 1 )
Exit_flag = False
return enchashment_value
else :
print ( "您的取现额度必须小于或等于您的信用额度!" )
else :
print ( "取现金额必须为100的整数倍!" )
else :
print ( "输入有误,取现金额必须为数字,且为100的整数倍" )
@auth
#定义信用卡转账函数
def transfer():
user_balance = user_data[user_id][ 'Balance' ]
print ( "您目前的可用额度为:%s" % user_balance)
Exit_flag = True
while Exit_flag:
transfer_user_id = input ( "请输入对方帐号:" )
transfer_value = input ( "请输入转账金额:" )
if transfer_user_id in user_data.keys():
while Exit_flag:
if transfer_value.isdigit():
while Exit_flag:
transfer_value = int (transfer_value)
user_passwd = input ( "请输入口令以验证身份:" )
if user_passwd = = user_data[user_id][ 'Password' ]:
user_balance = user_balance - transfer_value
user_data[transfer_user_id][ 'Balance' ] = int (user_data[transfer_user_id][ 'Balance' ]) + transfer_value
f = open (Base_dir + "\data\\user_db.txt" , 'r+' , encoding = 'utf-8' )
json.dump(user_data, f)
f.close()
print ( "转账成功,您目前的可用额度为:%s" % user_balance)
time.sleep( 1 )
Exit_flag = False
return transfer_value
else :
print ( "密码错误,请重新输入!" )
else :
print ( "转账金额,必须为数字,请确认!" )
else :
print ( "帐号不存在,请确认!" )
# @auth
#定义信用卡账单查询函数
@auth
def billing_query():
print ( "我们目前仅提供查询所有账单功能!" )
print ( "您的账单为:\n" )
Bill_log_file = open (Base_dir + '\logs\\bill_log.txt' , 'r' , encoding = 'utf-8' )
for lines in Bill_log_file:
if user_id in lines:
print (lines.strip())
print ()
time.sleep( 1 )
#定义修改信用卡额度函数
def change_user_credit():
print ( "您正在修改用户的信用额度!" )
Exit_flag = True
while Exit_flag:
target_user_id = input ( "请输入您要修改的用户卡号:\n" )
if target_user_id in user_data.keys():
while Exit_flag:
new_credit = input ( "请输入新的信用额度:\n" )
if new_credit.isdigit():
new_credit = int (new_credit)
user_data[target_user_id][ 'Credit' ] = new_credit
print ( "卡号 %s 的新信用额度为:%s " % (target_user_id,new_credit))
choice = input ( "确认请输入1或者按任意键取消:\n" )
if choice = = '1' :
f = open (Base_dir + "\data\\user_db.txt" , 'r+' , encoding = 'utf-8' )
json.dump(user_data, f)
f.close()
print ( "信用额度修改成功,新额度已生效!" )
print ( "卡号 %s 的新信用额度为:%s " % (target_user_id, user_data[target_user_id][ 'Credit' ]))
time.sleep( 1 )
Exit_flag = False
else :
print ( "用户的信用额度未发生改变!" )
else :
print ( "信用额度必须为数字!请确认!" )
else :
print ( "卡号不存在,请确认!" )
#定义修改口令函数
@auth
def change_pwd():
print ( "注意:正在修改用户密码!" )
Exit_flag = True
while Exit_flag:
old_pwd = input ( "请输入当前密码:" )
if old_pwd = = get_user_data()[user_id][ "Password" ]:
new_pwd = input ( "请输入新密码:" )
new_ack = input ( "请再次输入新密码:" )
if new_pwd = = new_ack:
user_data = get_user_data()
user_data[user_id][ "Password" ] = new_pwd
f = open (Base_dir + "\data\\user_db.txt" , 'r+' , encoding = 'utf-8' )
json.dump(user_data, f)
f.close()
print ( "恭喜,密码修改成功!" )
time.sleep( 1 )
Exit_flag = False
else :
print ( "两次密码不一致,请确认!" )
else :
print ( "您输入的密码不正确,请在确认!" )
#定义新增信用卡函数
def add_user():
Exit_flag = True
while Exit_flag:
user_id = input ( "user_id:" )
Balance = input ( "Balance:" )
Credit = input ( "Credit:" )
if Balance.isdigit() and Credit.isdigit():
Balance = int (Balance)
Credit = int (Credit)
else :
print ( "余额和信用额度必须是数字!" )
continue
Name = input ( "Name:" )
Password = input ( "Password:" )
print ( "新增信用卡用户信息为:\n"
"User_id:%s\n"
"Balance:%s\n"
"Credit:%s\n"
"Name:%s\n"
"Password:%s\n"
% (user_id, Balance, Credit, Name, Password))
choice = input ( "提交请按1,取消请按2,退出请按q:" )
if choice = = '1' :
back_up_file()
user_data = get_user_data()
user_data[user_id] = { "Balance" : Balance, "Credit" : Credit, "Name" : Name, "Password" : Password}
f = open (Base_dir + "\data\\user_db.txt" , 'w+' , encoding = 'utf-8' )
json.dump(user_data, f)
f.close()
print ( "新增用户成功!" )
time.sleep( 1 )
Exit_flag = False
elif choice = = '2' :
continue
elif choice = = 'q' or choice = = 'Q' :
time.sleep( 1 )
Exit_flag = False
else :
print ( 'Invaliable Options!' )
#定义删除信用卡函数
def del_user():
Exit_flag = True
while Exit_flag:
user_id = input ( "请输入要删除的信用卡的卡号:" )
if user_id = = 'q' or user_id = = 'Q' :
print ( '欢迎再次使用,再见!' )
time.sleep( 1 )
Exit_flag = False
else :
user_data = get_user_data()
print ( "新增信用卡用户信息为:\n"
"User_id:%s\n"
"Balance:%s\n"
"Credit:%s\n"
"Name:%s\n"
% (user_id, user_data[user_id][ 'Balance' ], user_data[user_id][ 'Credit' ], user_data[user_id][ 'Name' ]))
choice = input ( "提交请按1,取消请按2,退出请按q:" )
if choice = = '1' :
back_up_file()
user_data.pop(user_id)
f = open (Base_dir + "\data\\user_db.txt" , 'w+' ,encoding = 'utf-8' )
json.dump(user_data, f)
f.close()
print ( "删除用户成功!" )
time.sleep( 1 )
Exit_flag = False
elif choice = = '2' :
continue
elif choice = = 'q' or choice = = 'Q' :
print ( '欢迎再次使用,再见!' )
time.sleep( 1 )
Exit_flag = False
else :
print ( 'Invaliable Options!' )
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3、用户数据文件:
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{ "003" : { "Name" : "wangwu" , "Password" : "qazwsx" , "Credit" : 16000 , "Balance" : 8000 }, "004" : { "Name" : "zhaoliu" , "Password" : "edcrfv" , "Credit" : 18000 , "Balance" : 6000 }, "002" : { "Name" : "lisi" , "Password" : "123456" , "Credit" : 14000 , "Balance" : 10000 }, "009" : { "Password" : "qwerty" , "Name" : "hanmeimei" , "Credit" : 15000 , "Balance" : 15000 }, "005" : { "Name" : "fengqi" , "Password" : "1234qwer" , "Credit" : 15000 , "Balance" : 10700 }, "010" : { "Name" : "lilei" , "Password" : "qaswed" , "Credit" : 50000 , "Balance" : 50000 }, "008" : { "Name" : "zhengshi" , "Password" : "123456" , "Credit" : 12345 , "Balance" : 12345 }, "006" : { "Name" : "zhouba" , "Password" : "123456" , "Credit" : 20000 , "Balance" : 8300 }, "001" : { "Name" : "zhangsan" , "Password" : "abcd1234" , "Credit" : 12000 , "Balance" : 12000 }, "007" : { "Name" : "wujiu" , "Password" : "123456" , "Credit" : 20000 , "Balance" : 11243 }}
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4、相关日志内容:
登录日志:
2016-12-20 22:12:18 卡号 005 认证成功!
2016-12-20 22:14:20 卡号 005 认证成功!
2016-12-20 22:17:26 卡号 006 认证成功!
2016-12-20 22:18:06 卡号 005 认证成功!
2016-12-20 22:18:06 卡号 006 认证成功!
2016-12-20 22:21:10 卡号 005 认证失败!
2016-12-20 22:21:10 卡号 006 认证成功!
2016-12-20 22:23:17 卡号 006 认证成功!
2016-12-20 22:25:33 卡号 006 认证成功!
2016-12-20 22:26:14 卡号 006 认证成功!
2016-12-20 22:32:15 卡号 006 认证成功!
2016-12-20 22:44:57 卡号 005 认证成功!
2016-12-20 22:45:50 卡号 006 认证成功!
2016-12-20 22:47:10 卡号 006 认证成功!
2016-12-20 22:48:27 卡号 006 认证成功!
2016-12-20 22:49:30 卡号 006 认证成功!
2016-12-20 22:52:13 卡号 006 认证成功!
2016-12-20 22:53:44 卡号 006 认证成功!
交易日志:
2016-12-20 21:25:35 卡号 006 发起 repayment 业务,金额为: 100
2016-12-20 21:27:01 卡号 005 发起 repayment 业务,金额为: 100
2016-12-20 22:14:20 卡号 005 发起 repayment 业务,金额为: 100
2016-12-20 22:17:26 卡号 006 发起 transfer 业务,金额为: 300
以上所述是小编给大家介绍的使用Python3 编写简单信用卡管理程序,希望对大家有所帮助,如果大家有任何疑问请给我留言,小编会及时回复大家的。在此也非常感谢大家对服务器之家网站的支持!
原文链接:http://www.cnblogs.com/pythonstudy/archive/2016/12/20/6204752.html