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标签：nta   format   dump   改密码   没有   有用   system   个人   syn   

#coding=utf8
import string,pickle,exceptions
information={}
print "                      welcome to My system!             "
def pwdlen(pwd):
 while (len(pwd)<6 or len(pwd)>10):
     print "你的密码长度不合法！"
     pwd = raw_input("请重新输入密码:")
     if len(pwd)<6 or len(pwd)>10:
         continue
     else:
         print "密码输入成功"
         information[user] = pwd
         f1 = open(‘user.txt‘, ‘wb‘)
         d = information
         pickle.dump(d,f1)
         f1.flush()
         f1.close()
         break
 else:
     print "密码输入成功"
     information[user] = pwd
     f1 = open(‘user.txt‘, ‘wb‘)
     d = information
     pickle.dump(d, f1)
     f1.flush()
     f1.close()

def registed():  # 注册
    while 1:
        global user
        user = raw_input("请输入您的注册用户名:")
        if user in information.keys():
            print "注册失败，请重新选择"
            continue
        else:
            global password
            password = raw_input("请输入您的注册密码:")
            pwdlen(password)
            print "注册成功"
            break

def loginjudge():
    num = 3
    nums = 6
    user = raw_input(‘请输入您的账号: ‘)
    read_file = open(‘user.txt‘, ‘rb‘)
    information = pickle.load(read_file)
    read_file.close()
    while user not in information.keys():  # 帐号输入三次报错
        print "帐号不存在,你还有%s次机会，" % (nums - 3)
        user = raw_input("请重新输入您的账号: ")
        nums = nums - 1
        if nums > 3:
            if user not in information.keys():
                continue
        else:
            print "帐号输入错误超过3次，退出系统"
            break
    else:
        while num >= 0:
            password = raw_input("请输入登录密码：")
            if password == information[user]:
                print("欢迎用户%s来到lcy系统！" % user)
                break
            elif num == 0:
                print ("对不起，您的密码连续输错三次，请充值完再来")
                break
            else:
                print("密码错误，请重新输入密码,你还有%s次机会") % (num)
            num = num - 1
        else:
            print ("对不起，您的密码连续输错三次，请充值完再来")

def checkuser():
    while 1:
        read_file = open(‘user.txt‘, ‘rb‘)
        information = pickle.load(read_file)
        read_file.close()
        user=raw_input("请输入你要查看的账号:")
        if user not in information.keys():
         print "你输入的账号不存在"
         continue
        else:
          print "该账号密码为%s"%information[user]
          break

def chinfo():
    read_file = open(‘user.txt‘, ‘rb‘)
    information = pickle.load(read_file)
    read_file.close()
    global user
    user = raw_input("请输入你要修改的用户:")
    while user not in information.keys():
        user = raw_input("请重新输入你要修改的用户:")
        if user not in information.keys():
         print "此用户不存在"
         continue
    else:
        a = input("1.修改用户名;2.修改密码;3.全部修改")
        if a == 1:
            newuser = raw_input("请输入新的用户名:")
            x = information[user]
            information.pop(user)
            information[newuser] = x
            f1 = open(‘user.txt‘, ‘wb‘)
            d = information
            pickle.dump(d, f1)
            f1.flush()
            f1.close()
            print "修改成功"
        elif a == 2:
            newpassword = raw_input("请输入新的密码:")
            pwdlen(newpassword)
            information[user] = newpassword
            print "修改成功"
        elif a == 3:
            newuser = raw_input("请输入新的用户名:")
            newpassword = raw_input("请输入新的密码:")
            pwdlen(newpassword)
            information[newuser] = newpassword
            information.pop(user)
            print "修改成功"

def checkall():
    try:
        read_file = open(‘user.txt‘, ‘r‘)
        information = pickle.load(read_file)
        print information
        read_file.close()
    except IOError:
        print "没有用户存在!"

def deluser():
    read_file = open(‘user.txt‘, ‘rb‘)
    information = pickle.load(read_file)
    read_file.close()
    print information
    while 1:
        deluser = raw_input("请选择注销的用户名:")
        if deluser not in information:
            print "所选用户不存在"
            break
        else:
            del information[deluser]
            f1 = open(‘user.txt‘, ‘wb‘)
            d = information
            pickle.dump(d, f1)
            f1.flush()
            f1.close()
            print "注销成功!"
            break

def choose():
    while 1:
        try:
            choice =input("请选择你的操作:1.注册;2.登录;3.修改个人信息;4.查看账号;5.查看所有账号;6.退出系统;7.注销用户:")
            if choice > 7 or choice < 1:
                print "无效选项,请重新选择"
            elif choice == 1:
                print "你已经进入用户注册页面"
                registed()
            elif choice == 2:
                print "你已经进入用户登录页面"
                loginjudge()
            elif choice == 3:
                print "你已经进入用户修改页面"
                chinfo()
            elif choice == 4:
                checkuser()
            elif choice == 5:
                checkall()
            elif choice==6:
                print "你已经退出系统！"
                break
            else:
                deluser()
        except SyntaxError,reason:
            print reason
        except NameError,reason:
            print reason


choose()

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标签：nta   format   dump   改密码   没有   有用   system   个人   syn   

原文地址：http://www.cnblogs.com/alvis1/p/7496279.html