登陆脚本

#!/usr/bin/env python #
 -*- coding:utf-8 -*-
import os,sys 
num_count = 0 
lock_file = 'lockfile.txt' 
account_file = 'account.txt' 
match_flag ='' 
def lock_input(name):     
  f = open(lock_file,'a')     
  f.write('
'+name)     
  f.close()


while num_count < 3:     
  username = raw_input('请输入用户名   :')     
  password = raw_input('请输入密码 :')
  f = open(lock_file,'r')     
  for lock_name in f.readlines():         
    if  name == lock_name.strip():             
      sys.exit("你的用户名被锁定了,程序将退出")     
  f.close()

  fd = open(account_file,'r')     
  for line in fd.readlines():         
    user,passwd = line.strip('
').split()         
  if user == username and passwd == password:             
    print '登陆成功'             
    match_flag = True         
  else:             
    print "用户名密码不对"     
  fd.close() 
    
  if match_flag == True:         
    break     
  else:         
    print '请重新输入用户名密码!'     
    num_count += 1 else:     

lock_input(username)



########################################################################################

#!/usr/bin/env python 
# -*- coding:utf-8 -*- 

import os,sys 
num_count = 0 
lock_file = 'lockfile.txt' 
account_file = 'account.txt' 
match_flag =''  

def lock_input(name):     
  f = open(lock_file,'a')     
  f.write('
'+name)     
  f.close()

def lock_fun(username):     
  f = open(lock_file,'r')     
  for lock_name in f.readlines():         
    if  username == lock_name.strip():             
      return 'lock'     
  f.close()

def checklogin(username,password):     
  fd = open(account_file,'r')     
  for line in fd.readlines():         
    user,passwd = line.strip('
').split()         
    if user == username and passwd == password:             
      print '登陆成功'             
      return  'ok'         
    else:             
      print "用户名密码不对"     
  fd.close()

while num_count < 3:     
  username = raw_input('请输入用户名   :')     
  password = raw_input('请输入密码 :')
   result = lock_fun(username)
   if result == 'lock':         
    sys.exit("此账户已经被锁定,程序将退出")
      match_flag = checklogin(username,password)

  if match_flag == 'ok':         
    break     
  num_count += 1 
else:     
  lock_input(username)

#########################################################################################

使用类 验证时有问题,再找找

#!/usr/bin/env python 
# -*- coding:utf-8 -*-   
import sys 
num_count = 0 
lock_file = 'lockfile.txt' 
account_file = 'account.txt' 
match_flag =''  

class Pername(object):     
  def __init__(self,username,password):         
  self.Username = username         
  self.Password = password

   def lockcheck(self):
       f = open(lock_file,'r')         
    for i in f.readlines():             
      user = i.strip('
').split()             
      if self.Username == user:                 
        print user + 'lock文件中的名字'                 
          return  'lock'         
    f.close()
  def login(self):         
    fd = open(account_file,'r')         
    for line in fd.readlines():             
      user,passwd = line.strip('
').split()             
      if self.Username == user and self.Password == passwd:                 
        return 'userlogin'         
    fd.close()

    def lock_input(self):         
    f = open(lock_file,'a')         
    f.write('
'+self.Username)         
    f.close()         
    print "账户已经锁定"  if __name__ == '__main__':     

  while num_count < 3:         
    username = raw_input('请输入用户名   :')         
    password = raw_input('请输入密码 :')

      example = Pername(username,password)  
       
    resultcheck = example.lockcheck()

       if resultcheck == 'lock':             
      sys.exit('此账户已经被锁定,程序将退出')   
          
       loginresult = example.login()

        if loginresult == 'userlogin':             
      print "登陆成功"             
      break         
  num_count += 1     
else:         
example.lock_input()
 
原文地址:https://www.cnblogs.com/fengjian2016/p/5166839.html