My Python growth path---first day---python Basics (Job 1: Login verification)---December 26, 2015 (haze)

1 #!/usr/bin/env Python32 #Coding:utf-83 " "4 Created on:2015 December 295 6 @author: Rockets7 8 Email: [Email protected]9 Ten version:1.0 One  A Description: Enter the user name password, authentication successful display welcome information, authentication failure, the wrong three times after the lock -  - Help : the " " - ImportOS - #Define user Information write function to write user information back to file - defwrite_to_account_file (Accounts, Account_file_path): +Account_file = open (Account_file_path,'W') -      forKey,valinchAccounts.items (): +line = [] A line.append (Key) at Line.extend (val) -         Print(' '. Join (line)) -Account_file.write (' '. Join (line) +'\ n') - account_file.close () -  - if __name__=='__main__': in  -     " " to @parameters: + Account_file_path: Account file - Password_col_num: The column in the account file where the password is located (starting from 0) the Status_col_num: The column where the account status is located in the account file (starting from 0) * Error_count_num: The column where the number of errors was entered in the account file (starting from 0) $ App_info: System Information for starting the output after applicationPanax Notoginseng welcome_msg: Information After the user successfully logs on to the system -     " " theAccount_file_path ='account.db' +Password_col_num = 1 AStatus_col_num = 2 theError_count_num = 3 +App_info =" " - +-----------------------------------+ $ | Welcome to 65brother system | $ | version:1.0 | - | Author:zhangxiaoyu | - +-----------------------------------+ the " " -Welcome_msg ='Welcome%s, authentication is successful!'Wuyi     #determine if the account file exists the     ifos.path.exists (account_file_path): -Account_file = open (Account_file_path,'R') Wu     Else: -         Print('error:account file "Account.db" isn't exit, please check!') AboutExit (1) $  -     #Read Account file -accounts = {} -      forLineinchaccount_file.readlines (): AAccount =Line.strip (). Split () +Accounts[account[0]] = account[1:] the account_file.close () -  $Flag =True the      whileflag: the         Print(App_info) the         #Enter user name theUsername = input ('Username (Enter quit to exit):'). Strip () -         #determine if the input is a quit in         ifUsername = ='quit': the             #Yes then exit the loop and the program ends the              Break AboutPassword = input ('Password:'). Strip () the         #determine if the user name exists the         ifUsername not inchAccounts: the             #There is no prompt error message and exits the current loop so that the user re-enters +             Print('Error:username or Password it is error!') -             Continue the         #determine if the user is locked outBayi         ifACCOUNTS[USERNAME][STATUS_COL_NUM-1] = ='Lock': the             #If you are locked out of the current loop let's use re-entry the             Print('Error:account is locked. please contact the administrator!') -             Continue -         #determine if the user's password is correct the         ifPassword = = Accounts[username][password_col_num-1]: the             #display welcome information correctly the             Print(Welcome_msg%username) the              Break -         Else: the             #not correct the             #Prompt for user name or password error the             Print('Error:username or Password it is error!')94             #number of input errors plus 1 theACCOUNTS[USERNAME][ERROR_COUNT_NUM-1] = str (int (accounts[username][error_count_num-1)) + 1) the             #Judging whether it has reached 3 times the             ifInt (accounts[username][error_count_num-1]) = = 3:98                 #if the input error reaches 3 times About                 #prompt account will be locked -                 Print("error:this account is locked, please contact the administrator! System would be exit!")101                 #change user state to lock and write to file102ACCOUNTS[USERNAME][STATUS_COL_NUM-1] ='Lock'103 write_to_account_file (Accounts, Account_file_path)104                  Break theWrite_to_account_file (Accounts, Account_file_path)

My Python growth path---first day---python Basics (Job 1: Login verification)---December 26, 2015 (haze)