day04_final

作业需求：

模拟实现一个ATM + 购物商城程序

1. 额度 15000或自定义
2. 实现购物商城，买东西加入 购物车，调用信用卡接口结账
3. 可以提现，手续费5%
4. 每月22号出账单，每月10号为还款日，过期未还，按欠款总额 万分之5 每日计息
5. 支持多账户登录
6. 支持账户间转账
7. 记录每月日常消费流水
8. 提供还款接口
9. ATM记录操作日志 
10. 提供管理接口，包括添加账户、用户额度，冻结账户等。。。
11. 用户认证用装饰器

1、额度15000或自定义功能。

# Author: ray.zhang

import sys

while True:
    user = str(input("\033[1;32;40mPlease input your name:\033[0m"))
    f = open('user_list', 'r+')
    for line in f.readlines():
        n = str(line.split()[0])
        p = str(line.split()[1])
        if user == n:
            while True:
                password = str(input("\033[1;32;40mPlease input your password:\033[0m"))
                if password != p:
                    print
                    "\033[1;31;40mThe password is incorrect\033[0m"
                    continue
                else:
                    print
                    "\033[1;32;40myes let you in.\033[0m"
                    global money
                    money_total = 15000
                    print("\033[1;33;40mYou total money is: \033[0m", money_total)
                    exit()
        else:
            print
            "\033[1;31;40mThe user is not vaild, please re-input:\033[0m"
            continue

2、支持多账户登录

# Author: ray.zhang

dict = {
    'user1':{'pass':123,'count':0},
    'user2':{'pass':456,'count':0},
    'user3':{'pass':789,'count':0}
}


name = input ("plz input your name: ")
print (dict[name]['pass'])

if name not in dict:
    print ("Sorry,you input error.")
    exit()
elif name in dict :
    print ("Ok,you input success.")

    while dict[name]['count'] < 3:

        pas = int(input("plz input your passwd: "))

        if pas == dict[name]['pass']:
            print ("Congratulation to you.")
            dict[name]['count'] = 3
        else:
            dict[name]['count'] += 1

3、实现用户认证装饰器

# Author: ray.zhang

import time

user_dict={'user':None}
def auth(func):
    def wrapper():
        print(user_dict['user'])
        #user = user_dict['user']
        #print(user_dict['user'])
        if user_dict['user']:
            starttime = time.time()
            func()
            stoptime = time.time()
            print("Run time is %s" % (stoptime - starttime))
        if not user_dict['user']:
            user = input("plz input your user:").strip()
            passwd = int(input("plz input your passwd:").strip())
            with open('info','r',encoding='utf-8') as f:
                date=eval(f.read())
                starttime = time.time()
                if user in date and passwd == date[user]:
                # if user == "erav" and passwd == 123:
                    print("you input success...")
                    func()
                    stoptime = time.time()
                    print("Run time is %s" %(stoptime - starttime))
                    user_dict['user'] = user
                else:
                    print("you input error...")
    return wrapper

@auth                   #这个就相当于 timmer=auth(timmer)
def timmer():
    time.sleep(2)
    print("welcome to shopping")



timmer()