Python write ' User login ' procedure 2

Last written the login program is disorganized, I can not see, the teacher made the comments as follows

Since the current dictionary is not too familiar with the first time,

And then joins in a while loop really works

But the sense code is still more redundant, the readability is super poor

Yes, now find a more useful debugging method, is to add a piece of print statement when each function is completed to show that the code is running, or how to implement a function

The last time the code has a super bug is that when a user name is locked, when you enter the correct password again, will still log on,

And I corrected it this time, and here's the code.

User_name=[' A ', ' B ', ' C ', ' d '] #密码和字符串分别保存到两个列表内并对应位置passward =[' 1 ', ' 2 ', ' 3 ', ' 4 ']error_record=[]while (1): Error_record = [] Input_user_name=input ("Please enter user name") #将格式转化为字符串格式 input_passward=input ("Enter password") if Input_user_n Ame in user_name: # To determine if the user name exists user_name_position = User_name.index (input_user_name) # Gets the user name in the list position with OP En (' error_record.txt ') as F: # Open the file and return the object for lines in F: # Loop The data for each line rs = line.replace (' \ n ', ' ') # Replace line break Error_record.append (RS) # Loop put in the list f.close () print (Error_record) print ("User            exist, and write the list Error_record ") if Input_user_name in Error_record: # If the list has this user name print (" user exists in TXT record ") User_name_position1 = Error_record.index (input_user_name) # Find the location of this username # if Error_record[user_name_position1 + 1] = = ' 3 ': # Match username location to determine if the password is correct # print ("Login failed, account is locked") # elif Input_passward = = Passward[user_n Ame_position]: # corresponding User fameTo determine if the password is correct # # print ("Login successful") if Error_record[user_name_position1 + 1] = = ' 1 ':                    if Input_passward = = Passward[user_name_position]: print ("login Successful") Else: Error_record[user_name_position1 + 1] = ' 2 ' # print ("Login failed, there are 1 chances") print (E                    Rror_record) with open (' Error_record.txt ', ' W ') as F:f.truncate () # Document empty                            For i in Error_record: # loop writes a new list of documents with open (' Error_record.txt ', ' a ') as F:                    F.write (i) f.write (' \ n ') F.close () Print ("Write TXT record 2") Elif Error_record[user_name_position1 + 1] = = ' 2 ': if Input_passward = =                    Passward[user_name_position]: # corresponds to the user name location to determine if the password is correct print ("login Successful") Else:    Print ("Login failed with 0 chances")                Error_record[user_name_position1 + 1] = ' 3 ' # print (Error_record) W ITH open (' Error_record.txt ', ' W ') as F:f.truncate () # Document empty for I in Error_reco                            RD: # Loop writes a new list of documents with open (' Error_record.txt ', ' a ') as F:f.write (i)            F.write (' \ n ') F.close () print ("Write to TXT record 3") Elif Error_record[user_name_position1 + 1] = = ' 3 ': Print ("Login failed, account locked") else:if input                _passward = = Passward[user_name_position]: # corresponds to the user name location to determine if the password is correct print ("login Successful") Else: Error_record=[] with open (' Error_record.txt ') as F: # Open the file and return the object for lines in F: # on each line Data Loop rs = line.replace (' \ n ', ') # Replace line break Error_record.append (RS) # Loop drop to column In-table F.closE () print ("Put some data in the text in the list") print (Error_record) error_record.append (input_user _name) error_record.append (' 1 ') print ("No Error record for this user, added to Error_record list") print                (Error_record) with open (' Error_record.txt ', ' W ') as F:f.truncate () # Document empty                        For i in Error_record: # loop writes a new list of documents with open (' Error_record.txt ', ' a ') as F: F.write (i) f.write (' \ n ') print ("Bad password, two chance") E Lse:print ("Please enter the correct user name")

The code is still super rotten, and I know it, and I'll change it, okay?

Python write ' User login ' procedure 2