The function and process control of Python learning

This article is mainly for you to introduce the Python learning function and process control, with a certain reference value, interested in small partners can refer to

#猜年龄大小, users guess up to three times

Age = i = 0 when I < 3:     guess_age = int (input ("Please input your answer:"))     if Guess_age > Age:         prin T ("Too Big...try Again")     Elif Guess_age < age:         print ("Too small...try Again")     else:         Print ("you guessed it!")         Break     i + = 1     if i = = 3:

#猜年龄, ask if you want to play every three times

Age = $ for I in range (1,100):     guess_age = int (input ("Your answer:"))     if Guess_age > Age:         pri NT ("Too Big...try Again")     Elif Guess_age < age:         print ("Too small...try Again")     else:         Print ("You guessed it!")     If i%3 = = 0:         choice = input ("Would like play again?") Yes or no ")         if choice = =" Yes ":             continue         if choice = =" No ": Break     Else:         continue

#登录验证, input error three times lock user

f = open (' C:/user_passwd.txt ', ' r ') j = 3 System_user_name = str (f.readline ()) system_passwd = str (f.readline ()) F.close () For I in range (1,5):     user_name = str (input ("Your UserID:"))     password = str (input ("passwd:"))     if i = = 3:         s = open (' C:/user_passwd.txt ', ' r+ ')         s.write ("\nlocked")         s.close ()         print ("This user is locked!")         break     Else:         if user_name + ' \ n ' = = system_user_name and Password = = system_passwd:             print ("Welcome" + US Er_name + ' \ n ' + "has a good time!")             Break         Else:             J-= 1             i + = 1

            Print ("UserID or password is wrong,please try once again and you have" + \              Str (j) + ' Times choice ')