Python Job User Login _day01

Job Requirements:

1. Enter user name and password
2. Login welcome message after successful authentication
3. Password input error three times lock account

Ideas:

Draw the flowchart first, you can figure out the logic.

Created User_file is a user file, Lock_file is a locked user file

Main program:

1 #_*_ coding:utf-8 _*_2 __author__='Zhangkai'3 Print('**************** Welcome to the League of Legends ******************')4Login_user = input ('Please enter your account number:')5 6Lock_file = open ('Lock_file','r+')#open a locked user file path7Lock_list = Lock_file.readlines ()#read the entire file8  forLock_infoinchLock_list:#Traverse List9Lock = Lock_info.split ()#Remove Empty linesTen #Print (lock) One     ifLogin_user = = Lock[0]:#determine if the account is in a locked file A         Print('account has been locked! ') - exit () -  theLock_file.close ()#Close File -  -  -User_file = open ('User_file','r+') +User_list =User_file.readlines () -  forUser_infoinchuser_list: +user =User_info.split () A #print (user) at     ifLogin_user = =User[0]: -Count = 0#variable set a number of cycles -          whileCount <3:#cycles up to three times -LOGIN_PASSWD = input ('Please enter your password:') -             iflogin_passwdinchUSER[1]:#if it is equal to the preset password will continue to execute -                 Print('the enemy has 30 seconds to get to the battlefield and crush them! ') in #print (count) - exit () to             Else: +Count + = 1 -                 Print('Password input error, you have%d chances'% (3-count))#indicates the number of times remaining the #print (count) *         Else: $Lock_file.write (Login_user +'\ n')#write the locked account to a filePanax NotoginsengExit'account has been locked') -  the Else: +     Print('account does not exist cannot be empty or numeric') A exit () theUser_file.close ()

Register and unlock the user did not engage, write to write on the chaos, in the whole continue to improve ~

Python Job User Login _day01