Login interface code

0 introduction

We have learned a lot Python knowledge , But it's abstract , I don't know the actual application of these codes in our real life . I think today app The rapidly developing information age , If we want to enter a APP Or some interface will require us to enter our account and password , This is the protection of our personal information security ; however , Do you know how the login process came about ？ Today we will use a simple code to parse the source of the login interface we often encounter in our life .

1 problem

In the information age , Our biggest concern is personal privacy , When we use software , The software will collect our personal information , If criminals collect and use our information , Then the consequences will be unimaginable . therefore , We need to set the login interface , Enter the software by entering the password , So how should we do it ？

2 Method

First, create two input lines named account and password , Then enter with for in Loop to set the input opportunity to three times , Reuse if Conditional sentence to judge whether the input is correct , Report an error every time you make a mistake , If you don't lose right three times, output ‘ The user is locked ’. If the input is correct, output ‘ Successfully logged in ’.

3 Experimental results and discussion

Finally, the experiment proves that , The method performs effectively ：

Code list 1

n=input(' account number ：') m=input(' password ：') for i in range(2):    if n=='daiwei' and m=='5201314':        print(' Successfully logged in ')        break    else:        print(' Input error ')        print('<'*10)        print('1、 Re input ')        print('2、 sign out ')        option = input(" Please select ：")        if option=='1':            n = input(' account number ：')            m = input(' password ：')            if n == 'daiwei' and m == '5201314':                print(' Successfully logged in ')            else:                print(' This number is locked ')

4 Conclusion

Last , Let's type out the code of the simple login interface ！ The code tends to be basic , The main difficulty is to count the number of times with cycles , As for the general procedure , There will be more operations after we log in , We'll talk about the specific content next time .