pyhton学习，day1作业，用户名密码登录模块

要求，通过用户名密码登录，登录错误3次，锁定用户名

# coding=utf-8
# Author: RyAn Bi

import os, sys  #调用系统自己的库

accounts_file = 'E:\homework\user.txt'  # 存放用户名密码的位置
lock_file = 'E:\homework\lock.txt'  #存放锁定用户名的位置
print('accounts_file:', accounts_file) 
'''
temp1 = open(accounts_file,'a') #a为加入
temp1.write('bjb,123'+'
')
temp1.close()  #写入用户名密码的功能，在登录的时候不用
'''
user = open(accounts_file, 'r') #r为只读
# print('user:',user)
account_list = user.readlines()  #逐行按分隔符阅读，readline是逐字节阅读
# print('account_list:',account_list)
user.close()   #读取用户名和密码到内存中

user1 = open(lock_file, "r")   
lock_list = user1.readlines()
# print(lock_list)
user1.close()  #读取被锁定的用户名到内存中
loginSucess = False   #默认将loginSucess置为假
while True:
    username = input('username:').strip()  #.strip是去除空格和

    lockid = 0        #锁定用户标识值为零，不锁定
    if len(username) != 0:      #假如用户名不为空
        for i in lock_list:
            # i = i.split(' ')   #i的分割符为空格
            # print(i)
            if username == i.strip():
                print('your username %s is locked!' % username)
                lockid = 1
                break  # 判断该帐号是否被锁定
        for i in account_list:
            # print(i)
            if lockid == 1:  #被锁定了禁止执行
                break
            else:
                i = i.split(',')
                # print(i)
                if username == i[0]:
                    for x in range(3):
                        password = input('password:').strip()
                        if password == i[1].strip():  # 去掉空格和换行符
                            loginSucess = True
                            # print('you are right')
                            break   #验证3次密码，成功了置 loginsuccess 为真
                    else:
                        print('%s,you input wrong password 3 times,your %s is locked!' % (username, username))
                        l = open(lock_file, 'w') #w只允许写入，以写入方式打开locklist
                        if l != "":
                            l = open(lock_file, 'a') #假如是locklist中有内容，用添加方式打开locklist，避免空白行
                        l.write(username + '
') #将用户名写入
                        l.close()
                        lockid = 1
                        # view = open(lock_file)
                        # print(view.read())
        if loginSucess is True:
            print('welcome to system')
            break
        elif lockid == 0:
            print('you input a wrong username，pls input again')
        else:
            # print('%s,you input wrong password 3 times,your %s is locked!' % (username, username))
            break
    else:  # 用户名输入为空的时候
        continue