python-作业2



#######################################作业##############################3

1，登陆
import time
a = '''
(C)reate:
(L)ogin:
(D)elete:
(V)iew:
    input your choice:
'''

while True:
    choice = raw_input(a).lower()
   dic = {"user1":"123", "user2": "234"}
if choice == 'c':
    newuser =raw_input("username:")
   newpassword =raw_input("password:")
   dic[newuser] = newpassword
   print newuser
   print "新用户创建成功！"
elif choice == 'l':
    user =raw_input("username:")
   password =raw_input("password:")
   if user in dic and dic[user]==password:
       print "登陆成功！"
   else:
       print "请输入正确的用户名和密码！"
elif choice == 'd':
    user =raw_input("username:")
   password = raw_input("password：")
   if user not in dic:
       print "该用户不存在！"
   elif dic[user]!= password:
       print "密码不正确！"
   else:
       print "删除成功！"
elif choice == 'v':
    user =raw_input("username:")
   password =raw_input("password:")
   if user not in dic:
       print "该用户不存在！"
   elif dic[user]!= password:
       print "密码不正确！"
   else:
       print user
       print "正常显示！"
else:
    print "请重新输入！"



2，购物车
dic = []
salary = input("your salary:")
shopinfo = [
    ('iphone',1000),
   ('book',100),
   ('bike',200)
]
for k,v in enumerate(shopinfo):
    print k,v
num = input("num:")
if num == 0:
    print "added [iphone] to yourshopping"
   if salary < 1000:
       print "您的余额不足！"
   else:
       dic.append('iphone')
elif num == 1:
    print "added [book] to yourshopping"
   if salary < 100:
       print "您的余额不足！"
   else:
       dic.append('book')
elif num == 2:
    print "added [bike] to yourshopping"
   if salary < 200:
       print "您的余额不足！"
   else:
       dic.append('bike')
tuichu = input("quit:")
if tuichu == 'q':
    quit(shopinfo)
   print k,v in enumerate(dic)