age = 22

 #优化前

 '''

 for i in  range(10):

     guess_num = int(input('input your guess num:'))

     if guess_num == age :

         print('Congratulations ! you got it.')

     elif guess_num > age:

         print('Think smaller!')

     else:

         print('Think Big...')

 '''

 #优化后：要求输入用户名输入正确以后不执行语句

 '''

 for i in  range(10):

     if i < 3:

         guess_num = int(input('input your guess num:'))

         if guess_num == age :

             print('Congratulations ! you got it.')

             break #跳出整个循环

         elif guess_num > age:

             print('Think smaller!')

         else:

             print('Think Big...')

     else:

         print('too many attumt.bye')

         break

 '''

 #再优化：要求循环3次后询问一次

 counter = 0

 for i in  range(10):

     print('counter',counter)

     if counter < 3:

         guess_num = int(input('input your guess num:'))

         if guess_num == age :

             print('Congratulations ! you got it.')

             break #跳出整个循环

         elif guess_num > age:

             print('Think smaller!')

         else:

             print('Think Big...')

     else:

         continue_confirm = input('Do you want to continue because you are stupid:')

         if continue_confirm == 'y':

             counter = 0

             continue #跳出本次循环

         else:

             print('bye')

             break

     counter += 1    #counter = counter + 1