What are the actual combat cases of python?

This article will explain in detail about the actual combat cases of python, which the editor thinks is very practical, so I share it for you as a reference. I hope you can get something after reading this article.

Task 1: loop output 26 letters corresponding to the ASCII code value xsq9 represents the ASCII value of a for _ in range (1Jing 27): print (chr (x),'- >' X) x+=1print ('-') x=97while x 97b-> 98c-> 99d-> 100e-> 101f-> 102g-> 103h-> 104i-> 105J-> 106k-> 107l -> 108m-> 109n-> 110o-> 111p-> 112q-> 113r-> 114s-> 115t-> 116u-> 117v-> 118w-> 119x-> 120y-> 121z-> 122- -a-> 97b-> 98c-> 99d-> 100e-> 101f-> 102g-> 103h-> 104i-> 105J-> 106k-> 107l-> 108m-> 109n- > 110o-> 111p-> 112q-> 113r-> 114s-> 115t-> 116u-> 117v-> 118w-> 119x-> 120y-> 121z-> 122 tasks 2, Simulated user login for i in range (1Please enter user name:) user_name=input ('Please enter user name:') user_pwd=input ('Please enter password:') if user_name=='admin' and user_pwd=='8888': print ('login successful') break else: print ('incorrect user name or password!') If i