#!/usr/bin/env python#coding:utf-8info = """************************************************************   用戶登錄管理系統************************************************************   1. 注冊新用戶   2. 用戶登錄   3. 用戶注銷   4. 用戶信息顯示   5. 退出系統"""userinfo = { 'root': { 'name': 'root', 'password': 'redhat', 'gender': 1, 'email': '', 'age': 12 },}gender_choice = [0, 1, 2]def CreateUser(): print "注冊用戶界面".center(50, '*') name = raw_input("*注冊用戶名:") if name in userinfo: print "用戶已存在，請更換注冊名" else: password = raw_input("*用戶密碼:") while True:  gender = input("*性別(0-男 1-女 2-其他):")  if gender in gender_choice:  break  else:  print "請輸入正確的選擇" email = raw_input("用戶郵箱:") if not email:  email = None age = raw_input("年齡:") if not age:  age = None else:  age = int(age) userinfo[name] = {  'name': name,  'password': password,  'gender': gender,  'email': email,  'age': age, } print "%s 用戶注冊成功!!!" % (name)def UserLogin(): print "用戶登錄界面".center(50, '*') trycount = 0 while trycount < 3: name = raw_input("登錄用戶名：") if name not in userinfo:  print "用戶未注冊"  break password = raw_input("登錄密碼：") trycount += 1 if password == userinfo[name]['password']:  print "恭喜%s登錄成功" % (name)  break else:  print "請輸入正確的用戶名或密碼！" else: print "已登錄三次，請稍后再試"def DeleteUser(): print "用戶注銷界面".center(50, '*') name = raw_input("注銷用戶名：") if name not in userinfo: print "用戶未注冊" else: password = raw_input("登錄密碼：") if password == userinfo[name]['password']:  userinfo.pop(name)  print "恭喜注銷%s成功" % (name)def UserInfo(): for key, value in userinfo.items(): print "用戶:%s" % (key), print "性別:%d" % (value['gender']), print "郵箱:%s" % (value['email']), print "年齡:%s" % (value['age']), print "/n/n"def main(): while True: print info choice = raw_input("Choice:").strip() if choice == "1":  CreateUser() elif choice == "2":  UserLogin() elif choice == "3":  DeleteUser() elif choice == "4":  UserInfo() elif choice == "5":  exit() else:  print "輸入正確的選擇"main()