# 用户信息格式
# users = {'zhangsan':['张三','123','24',1],'lisi':['李四','456','24',1],'wangwu':['王五','789','24',0]}
import pickle
# 注册用户
def regist():username = input('请填写登陆账号>>')pwd = input('请填写登陆密码>>')nickname = input('请填写昵称>>')age = input('请填写年龄>>')users[username] = [nickname,pwd,age,1]f = open('user.pkl','wb')pickle.dump(users,f)f.close()print('注册成功')# 锁定用户
def lockUser(users,username):users[username][3] = 0f = open('user.pkl','wb')pickle.dump(users,f)f.close()# 解锁用户(暂时未用到)
def unLockUser(username):fr = open('user.pkl','rb')users = pickle.load(fr)users[username][3] = 1fw = open('user.pkl','wb')pickle.dump(users,fw)fw.close()# ----------begin---------------------
try:fi = open('user.pkl','rb')
except FileNotFoundError:f = open('user.pkl','wb')pickle.dump({},f)f.close()count = 1
flag = True
while(True):if(flag):name = input('请输入您的用户名：')falg = Falsepassword = input('请输入您的密码：')f = open('user.pkl','rb')users = pickle.load(f)if(users.get(name) == None ):print('该用户还未被注册，是否现在注册?y/n')if(input() == 'y'):# 注册用户
            regist()result = input('是否立即登陆?y立即登陆;n退出')if(result == 'n'):breakelse:flag = Trueelse:breakelif(users.get(name)[3] == 0):print('该账号已经被锁定,请联系管理员进行解锁！')breakelif(users.get(name)[1] != password):if(count == 3):# 锁定用户
            lockUser(users,name)print('密码三次输入错误，已经锁定该账号，请联系管理员进行解锁')breakelse:print('密码不正确','还有',str(3-count),'次输入的机会！')count += 1flag = Falseelse:print('登陆成功！')break
# --------------end------------------------

goods = {'001':['优衣库裤子',499],'002':['小米手机',2499],'003':['iPhone7',4199],'004':['联想电脑',4999],'005':['智力车厘子',36],'006':['python从入门到放弃',79]}
buyCart = []
try:money = int(input('请输入您的金额：'))
except ValueError:print('请输入正确的金额格式')exit()
print('-----------商品列表---------------')
print('商品编号    名称   价格')
for item in goods:s = '%s    \t%s    \t%d' % (item,goods.get(item)[0],goods.get(item)[1])print(s)
while(True):goodsNO = input('\n请选择要添加的商品编号：')if(goodsNO not in goods):print('\n选择的商品编号不存在，请重新选择!')continueif(goods.get(goodsNO)[1] > money):print('\n金额不足，无法添加该商品！')else:buyCart.append(goodsNO)s = '%s    \t%s    \t%d' % (itmoney = money - goods.get(goodsNO)[1]print('\n当前余额为%d' % money)yn = input('\n是否继续添加商品?退出输入n,继续按其他任意键:'if(yn) == 'n'):print('\n\n-------已购买的商品----------')print('商品编号    名称   价格')for item in buyCart:em,goods.get(item)[0],goods.get(item)[1])print(s)print('\n余额为：' + str(money))break

menu = {'北京':{'海淀':{'五道口':{'soho':{},'google':{}},'中关村':{'爱奇艺':{},'汽车之家':{}},'上地':{'百度':{},'联想':{}}},'昌平':{'回龙观':{'新浪':{},'网易':{}},'东小口':{'中科软':{},'中软':{}},'朱辛庄':{'智联':{},'拉钩':{}}},'朝阳':{'三里屯':{'太极华青':{},'北京云财':{}},'国贸':{'北京华志信':{},'北京伟业前程':{}},'望京':{'北京佰加星':{},'北京智达方通':{}}}},'上海':{'浦东':{'金桥':{'上海求步':{},'上海驰亚':{}},'合庆':{'中国电信':{},'上海顶通':{}}},'虹口':{'江湾':{'上海伦伟':{},'上海津腾':{}},'提篮桥':{'上海芒橙':{},'上海直达':{}}}},'广州':{'黄埔':{'板桥':{'恒大地产':{},'广州市蒲公英':{}},'官洲':{'广州动点网络':{},'广州玖维':{}}},'海珠':{'客村':{'广州海度':{},'广州艾秀':{}},'新港':{'广州优识':{},'广州合光':{}}}}
}
print('您可以输入‘dir’来查看当前菜单下的子菜单，输入‘cd ..’返回上一级目录,输入‘cd /’返回一级菜单,输入‘path’查看当前菜单路径,输入‘quit’来退出程序\n')
level = 0 #当前数据项的级别，比如北京为1级
menus = [menu] #存储当前从0-5级的各级的字典‘
path = [] #存放当前菜单路径
while(True):value = input('>>')if(value == 'dir'):print(list(menus[level]))elif(value == 'cd ..'): #返回上级if(level > 0):level -= 1menus.pop()path.pop()elif(value == 'cd /'): #返回根路径menus = [menu]level = 0path = []elif(value == 'quit'): #退出breakelif(value == 'path'): #查看当前菜单路径paths = ''for item in path:paths = paths + '-' + itemprint(paths[1:])elif(value.startswith('cd ')): #进入输入的下一级菜单value = value[3:]if(value not in menus[level]):print('找不到当前项下的子菜单',value)else:level += 1menus.append(menus[level-1][value])path.append(value)else:print('不是查看菜单的命令')