购物车

#-*- encoding:utf8 -*-
default_encoding="utf-8"
userlist={}
shoplist={}
tradelist={}
trade_log=[]
import sys
reload(sys)
sys.setdefaultencoding('utf8')
for line in open("user"):
    name_file=line.split(":")[0]
    pass_file=line.split(":")[1]
    yue_file=line.split(":")[2].split("\n")[0]
    userlist[name_file] = {"name_file":name_file,"pass_file":pass_file,"yue_file":yue_file}

for line in open("shop2"):
    line=line.decode("utf-8")
    shop_name=line.split(":")[0].decode("utf-8")
    shop_number=line.split(":")[1]
    shop_cost=line.split(":")[2].split("\n")[0]
    shoplist[shop_name] = {"shop_name":shop_name,"shop_number":shop_number,"shop_cost":shop_cost}

for line in open("tradelog"):
    trade_name=line.split(":")[0]
    tradelist[trade_name] = {"trade_name":trade_name}

name=raw_input("请输入用户名:")
if name not in userlist.keys():
    print "用户名不存在"
count=0
while count < 3:
    if name in userlist.keys():
        pass_input=raw_input("请输入密码:")
        if pass_input == userlist[name]["pass_file"]:
            print "用户登录成功"
            break
        else:
            print "密码错误"
            count+=1

if count == 3:
    print "密码错误3次"
    exit()

chose_use=0
while not chose_use == "5":
    chose_use_input=raw_input("查看余额或者购买商品或者充值，交易记录,退出 1 or 2 or 3 or 4 or 5 :")
    chose_use=chose_use_input.split("\n")[0]
    print chose_use
    if chose_use == "1":
        print "========================="
        print ("你的用户余额为:%s" %userlist[name]["yue_file"])
    if chose_use == "2":
        print "========================="
        print shoplist.keys()
        input_shop_name=raw_input("选择商品:")
        if input_shop_name not in shoplist.keys():
            print "选择正确的商品"
            continue
        else:
            print "======================="
            print ("商品名称:%s" %shoplist[input_shop_name]["shop_name"])
            print ("商品数量:%s" %shoplist[input_shop_name]["shop_number"])
            print ("商品价格:%s" %shoplist[input_shop_name]["shop_cost"])
            pay_shop_number=raw_input("请输入购买商品数量:")
            pay_much=int(pay_shop_number)*int(shoplist[input_shop_name]["shop_cost"])

            if int(pay_much) > int(userlist[name]["yue_file"]):
                print "=========================="
                print "穷B买不起"
            elif int(pay_shop_number) > int(shoplist[input_shop_name]["shop_number"]) :
                print "=========================="
                print "剩余数量不足"
            else:
                shoplist[input_shop_name]["shop_number"]=int(shoplist[input_shop_name]["shop_number"]) - int(pay_shop_number)
                userlist[name]["yue_file"]=int(userlist[name]["yue_file"]) - int(pay_much)
                print ("您已经购买成功%s %s 件" %(input_shop_name,pay_shop_number))
                trade_file = file("tradelog", "a")
                a=str("%s:购买商品:%s 购买数量:%s" %(name,input_shop_name,pay_shop_number))
                print a
                #print >>trade_file, ("%s:购买商品:%s 购买数量:%s" %(name,input_shop_name,pay_shop_number))
                trade_file.write(a+'\n')
                trade_file.close()
                file_user=file("user","w+")
                for re_user_file in userlist.values():

                    to_user_file=(str(re_user_file["name_file"]),str(re_user_file["pass_file"]),
                                  str(re_user_file["yue_file"]))
                    jone_user_file=":".join(to_user_file)
                    file_user.write(jone_user_file+"\n")

                file_shop=file("shop2","w+")
                for re_shop_file in shoplist.values():
                    to_shop_file=(str(re_shop_file["shop_name"]),str(re_shop_file["shop_number"]),str(re_shop_file["shop_cost"]))
                    jone_shop_file=":".join(to_shop_file)
                    file_shop.write(jone_shop_file+'\n')

    if chose_use == "3":
        print "===================="
        chongzhi=raw_input("请输入需要充值的金额:")
        userlist[name]["yue_file"]=int(userlist[name]["yue_file"]) + int(chongzhi)
        file_user=file("user","w+")
        for re_user_file in userlist.values():
            to_user_file = (str(re_user_file["name_file"]),str(re_user_file["pass_file"]),str(re_user_file["yue_file"]))
            jone_file=":".join(to_user_file)
            #print to_user_file
            #print jone_file
            file_user.write(jone_file+'\n')
        print "====================="
        print ("您已成功充值%s" %chongzhi)

    if chose_use == "4":
        print "==============="
        if name not in tradelist.keys():
            print "你没有买过东西"
        else:
            for jyjl in open("tradelog"):
                jiaoyi_name=jyjl.split(":")[0]
                if name == jiaoyi_name:
                    print jyjl