一个简单的ATM程序

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目前实现的功能不多，目前具有的功能，用户的登录，转账，提现，查看余额。并用装饰器检测在各个接口用户是否有登录。

好了，上代码。

这是各个文件

==========>atm.py
#Auther: He Jianhan
import os,sys
routes = os.path.dirname(os.path.dirname(os.path.abspath(__file__)))
sys.path.append(routes)

from core import main
#调入主运行文件并执行
main.run(routes)


==========>main.py
import os,sys,json
from core import operation

sign_in = {"name":None,"stata":False,"information":None}
#name;用于存储用户姓名
#stata：存储登录信息
#inforamtion :存储用户文件信息

def into_sign_in(routes,name):
    #将储存用户信息的文件代入遇到sign_in
    with open(routes + r"\user\%s" % (name), "r") as f:
        username = json.load(f)
    sign_in["name"] = name
    sign_in["stata"] = True
    sign_in["information"] = username

def run(routes):
    #让用户输入登录信息
    #登录成功执行选项操作模块
    loop = True
    while loop:
        name = input("Your ID:")
        password = input("Your password:")
        if os.path.exists(routes+r"\user\%s"%(name)):
            with open(routes+r"\user\%s"%(name),"r") as f:
                username = json.load(f)
            if password == username["password"]:
                into_sign_in(routes, name)
                print("welcom \033[31;1m%s\033[0m !!!"%(name))
                operation.operations(sign_in)
                loop = False
            else:
                print("密码错误")
        elif name == "q":
            loop = False
        else:
            print("找不到该用户")


==========>operation.py

from core import paragraph

def operations(sign_in):
    #显示选项操作信息
    #根据选择调取相应函数
    operation_loop = True
    while operation_loop:
        print("你想要做哪些操作:"
              "\n0 显示余额"
              "\n1 转账"
              "\n2 提现"
              "\n3 退出")
        operation_dict = {"0":"look",
                          "1":"repay",
                          "2":"take",
                          "3":"exit"}
        choice_operation = input("选择你要的操作")
        if choice_operation in operation_dict:
            operation_dict_itmes = operation_dict[choice_operation]
            if operation_dict_itmes == "look":
                print("你的余额剩下\033[31;1m%s\033[0m"%(sign_in["information"]["money"]))
            elif operation_dict_itmes == "take":
                while True:
                    money = input("你要提现多少金额")
                    if money.isdigit():
                        money = float(money)
                        paragraph.paragraphs(sign_in,operation_dict_itmes,money)
                    elif money == "q":
                        break
                    else:
                        print("错误!!!!!请输入整数")
            elif operation_dict_itmes == "repay":
                while True:
                    name = input("你转账给谁")
                    if os.path.exists(routes+r"\user\%s"%(name)):
                        while True:
                            money = input("你要转多少金额")
                            if money.isdigit():
                                money = int(money)
                                go = paragraph.paragraphs(sign_in, operation_dict_itmes, money)
                                if go:
                                    paragraph.paragraphs(name, "Receivables", money)
                            elif money == "q":
                                break
                            else:
                                print("请输入整数")
                        break
                    elif name == "q":
                        break
                    else:
                        print("没有该用户")
            elif operation_dict_itmes == "exit":
                operation_loop = False
        else:
            print("没有这个操作")


==========>paragraph.py

import os,json
routes = os.path.dirname(os.path.dirname(os.path.abspath(__file__)))

paragraph_dict = {"repay":{"plus_reduce":"reduce","interest":"0"},
                  "take":{"plus_reduce":"reduce","interest":"0.05"},
                  "Receivables":{"plus_reduce":"plus","interest":"0"}}
#根据相应的类型决定加减金额，还有利息

def load(name,result_plus_reduce):
    #根据用户文件信息打开相关文件进行覆盖存储
    name["money"] = result_plus_reduce
    with open(routes+r"\user\%s"%(name["name"]),"w") as loadss:
        json.dump(name,loadss)

def prov_login(paragraphs):
    #装饰器，用于验证用户是否登录，防止未登录就进行金额加减操作
    def proving(*args,**kwargs):
        if type(args[0]) == dict:
            if args[0]["stata"]:
                paragraphs(*args)
                return True
            else:
                print("账号没有登录")
                return
        else:
            paragraphs(*args)
    return proving

@prov_login
def paragraphs(sign_in,operation_dict_itmes,money):
    #进行金额的加减操作
    if paragraph_dict[operation_dict_itmes]["plus_reduce"] == "plus":
        with open(routes + r"\user\%s" % (sign_in), "r") as dumpss:
            dumpsss = json.load(dumpss)
        result_plus_reduce = float(dumpsss["money"]) + money
        result_plus_reduce = round(result_plus_reduce,2)
        load(dumpsss, result_plus_reduce)
    elif paragraph_dict[operation_dict_itmes]["plus_reduce"] == "reduce":
        result_plus_reduce = float(sign_in["information"]["money"]) - money - \
                             float(paragraph_dict[operation_dict_itmes]["interest"])*money
        result_plus_reduce = round(result_plus_reduce, 2)
        if result_plus_reduce < 0 :
            print("你的\033[31;1m金额\033[0m不足")
        else:
            load(sign_in["information"], result_plus_reduce)
            print("你%s了\033[31;1m%s\033[0m"%(operation_dict_itmes,int(money)))

一个简单的ATM程序

标签：return   main   image   ges   pre   操作   none   mon   dig   

原文地址：http://www.cnblogs.com/han44/p/7401388.html