#!/usr/bin/env python
# -*- coding:utf-8 -*-  
# by wk
import sys

def mycarlist(mygoodsindex,glist,userinfo):        #购物车列表，同时返回新的商品列表
    newglist = goodssele(mygoodsindex,glist)
    for index, item in enumerate(newglist):
        if mygoodsindex == index:
            # print(\'my add\',newglist[index])
            mycar = newglist[index]
            pmoney = personmoney(userinfo,newglist[index][\'price\'])
            # print(\'my add2\',mycar)
    return mycar,newglist,pmoney

def goodsdb(glist):                #商品数据库 goodsdatabase
    goodslist = glist
    return goodslist

def goodssele(goodsindex,glists):        #选择好的商品自动减1
    glist = goodsdb(glists)
    for index, item in enumerate(glist):
        # print(index,item)
        if goodsindex == index:
            nu = int(glist[index][\'num\']) -1
            glist[index].update({\'num\':nu})
            # print(glist[index])
    return glist


def personmoney(userinfo,goodsmoney):            #个人有多少钱
    if int(userinfo[0][\'mymoney\']) > int(goodsmoney):
        userinfo[0][\'mymoney\'] = int(userinfo[0][\'mymoney\']) - int(goodsmoney)
    else:
        print(\'not enougth money\')
    return userinfo[0][\'mymoney\']

if __name__ == \'__main__\':
    # 商品列表
    goodslist = [{\'gid\': \'1\', \'gname\': \'mobile\', \'price\': 1000, \'num\': 10},
             {\'gid\': \'2\', \'gname\': \'laptop\', \'price\': 2000, \'num\': 10},
             {\'gid\': \'3\', \'gname\': \'desktop\', \'price\': 3000, \'num\': 10}]
    mycatlist = []
    userinfo = [{\'uname\':\'wk\',\'mymoney\':10000}]
    # goout = 0
    while True:
        glist = goodsdb(goodslist)
        print(\'id  goods   num\')
        for i in glist:
            print(i[\'gid\'], i[\'gname\'], i[\'num\'])
        print(\'select e to exit\')
        mygoodsindex = input(\'Please select:\')
        if mygoodsindex == \'e\':          #选择e退出
            print(\'mycat\',mycatlist)
            print(\'goodslist\',goodslist)
            print(\'usermoney\',userinfo)
            break
        else:
            rmygoodsindex = int(mygoodsindex) - 1
            # mylist,newglist = mycarlist(rmygoodsindex)
            mylist,newglist,pmoney = mycarlist(rmygoodsindex,glist,userinfo)
            print(\'my add\',mylist)
            print(\'my add 2\',newglist)
            mycatlist.append(mylist)        #添加到购物车
            goodslist = newglist            #更新商品列表
            userinfo[0][\'mymoney\'] = pmoney