购物车
Posted Python学习之路
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#!/usr/bin/env python
# coding:utf-8
shopping_list =[
[‘Mi 5s‘,1999],
[‘HaWei Mate8‘,2799],
[‘IPhone 6s plus‘,6888],
[‘ThinkPad T460P‘,7888],
[‘MacBook Air 13‘,6988],
[‘MacBook Pro 13‘,9288],
]
salary = 100000
total = 0
shop_list = []
while True:
welcome_1 = "欢迎使用xx在线购物商城"
we_1 = welcome_1.center(30,‘*‘)
print(we_1)
choice_1 = "1.注册 2.登陆 q.退出"
ch_1 = choice_1.center(32,‘*‘)
exit_1 = "谢谢使用，欢迎下次光临！"
ex_1 = exit_1.center(30,‘*‘)
error_1 = "你输入的用户已存在，请重新输入"
er_1 = error_1.center(30,‘-‘)
error_2 = "密码不能为空，请重新输入"
er_2 = error_2.center(30,‘-‘)
error_3 = "输入的密码太短，请重新输入"
er_3 = error_3.center(30,‘-‘)
error_4 = "输入有误，请重新输入"
er_4 = error_4.center(28,‘-‘)
error_5 = "账号已锁定，请联系管理员"
er_5 = error_5.center(25,‘-‘)
print(ch_1)
st_1 = input("选择功能：")
if st_1 == ‘1‘:
while True:
with open(‘names.txt‘,‘r‘) as read_1:
temp = read_1.readlines()
usl = []
for ust in temp:
ust = ust.strip().split(‘:‘)
usl.append(ust[0])
useradd = input("账户名称：")
success_1 = "创建用户成功：%s" %(useradd)
if useradd in usl:
print(er_1)
elif useradd == "exit":
break
else:
passwd = input("请输入密码：")
length = len(passwd)
if length == 0:
print(er_2)
elif length > 6:
with open(‘names.txt‘,‘a‘) as pas_3:
we_1 = ‘%s:%s:0\n‘ %(useradd,passwd)
pas_3.write(we_1)
ok_1 =success_1.center(30,‘-‘)
print(ok_1)
break
else:
print(er_3)
elif st_1 == ‘2‘:
flag =False
while True:
username = input("账户名称：")
lo = open(‘lock.txt‘,‘r‘)
for loline in lo.readlines():
loline = loline.strip()
if username == loline:
print("账号已锁定！")
flag = True
lo.close()
break
if flag == True:
break
ul = open(‘names.txt‘,‘r‘)
for ulline in ul.readlines():
user,password,mony = ulline.strip().split(‘:‘)
if username == user:
i = 0
while i < 3 :
passwd = input(‘密码：‘)
i +=1
if passwd == password:
print(‘欢迎%s登陆在线购物平台‘ % username)
flag = True
ul.close()
break
else:
if i >= 3:
with open(‘lock.txt‘,‘a‘) as lock_2:
lock_2.write(username + ‘\n‘)
ul.close()
exit("尝试次数太多，账户将被锁定。")
print(‘密码输入错误，还有%d次机会‘ % (3 - i))
break
else:
print("密码错误，请重新输入")
while True:
print("1.购物 2.查看购物车 3.查询余额 4.充值 b.返回登陆 q.退出")
print(‘----------------------------------------------------‘)
choice_2 = input("输入序号：")
flag_1 = False
while True:
if choice_2 == "1":
while True:
for index,g in enumerate(shopping_list):
print(index,g[0],g[1])
print(‘--------------------‘)
print("c.查看购物车 b.返回 q.退出")
print(‘-----------------------------‘)
choice = input("请输入数字选择商品：").strip()
if choice.isdigit():
choice = int(choice)
p_price = shopping_list[choice][1]
if p_price < salary:
shop_list.append(shopping_list[choice])
total += p_price
salary -= p_price
print(‘-----------------------------‘)
print("您购买了%s,余额为%s" %(shopping_list[choice][0],salary))
print(‘--------------------‘)
else:
print(‘-----------------------------‘)
print("您的余额不足")
print(‘-----------------------------‘)
elif choice == "c":
while True:
print("----------购物车----------")
for k,v in enumerate(shop_list):
print(k,v[0],v[1])
print("已消费金额为：%s" %total)
print("您的可用余额为：%s" %salary)
print(‘-----------------------------‘)
print("d.删除商品 b.返回购物 q.结算退出")
print(‘-----------------------------‘)
choice_1 = input("请输入字母选择功能：")
print(‘-----------------------------‘)
if choice_1 == "d":
print(‘-----------------------------‘)
print("输入数字为删除商品，输入字母b为返回购物车")
print(‘-----------------------------‘)
while True:
choice_2 = input("请选择：")
if choice_2.isdigit():
choice_2 = int(choice_2)
d_price = shop_list[choice_2][1]
shop_list.remove(shop_list[choice_2])
total -= d_price
salary += d_price
print(‘-----------------------------‘)
print("商品%s删除成功，可用余额为：%s" %(shop_list[choice_2][0],salary))
print(‘-----------------------------‘)
elif choice_2 == "b":
break
elif choice_1 == "b":
flag = True
break
else:
print("-----------购物清单-------------")
for k,v in enumerate(shop_list):
print(k,v[0],v[1])
print(‘总消费金额为：%s‘ %total)
print("您的可用余额：%s" %salary)
print(‘---------欢迎下次光临---------‘)
exit(0)
elif choice == "b":
break
elif choice == "q":
print("-----------购物清单-------------")
for k,v in enumerate(shop_list):
print(k,v[0].v[1])
print(‘总消费金额为：%s‘ % total)
print("您的可用余额：%s" % salary)
print(‘---------欢迎下次光临---------‘)
exit(0)
else:
print("--------------------------------")
print("您输入的密码有误，请重新输入")
print("--------------------------------")
if flag == True:
break
elif choice_2 == "2":
print("----------购物车----------")
for k,v in enumerate(shop_list):
print(k,v[0],v[1])
print(‘总消费金额为：%s‘ % total)
print("您的可用余额：%s" % salary)
print("--------------------------------")
break
elif choice_2 == "3":
with open(‘names.txt‘,‘r‘) as m_1:
mony_1 = m_1.readlines()
for mline in mony_1:
(user,password,mony) = mline.strip().split(‘:‘)
print(salary)
flag_1 = True
break
break
elif choice_2 == "4":
z = 0
while z < 1:
chongzhi = int(input("输入金额："))
passwd_1 = input("请输入密码：")
m = open(‘names.txt‘,‘r+‘)
m_2 = m.readlines()
for mline in m_2:
(user,password,mony) = mline.strip().split(‘:‘)
if passwd_1 == password:
mony_2 = (chongzhi + int(mony))
w_2 = ‘%s:%s%s\n‘ %(username,password,mony_2)
m.write(w_2)
print("充值成功")
print(mony)
flag = True
break
continue
break
if flag == True:
break
elif choice_2 == "b":
flag =True
break
elif choice_2 == "q":
exit(ex_1)
else:
print(er_4)
break
break
if flag == True:
break
break
elif st_1 == ‘q‘:
exit(ex_1)
else:
print(er_4)
print (‘ ‘)
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