Six stone programming: the subtlety of application

　　 Recently, in the process of processing the row position , Great progress has been made . In the development process , Used a lot of knowledge and skills . So I thought of a sentence ： Wonderful application , Keep one's mind at rest .

　　 To do this job well , Relevant knowledge , Know everything , Master everything , And know when 、 How to use it . This is difficult .

　　 These words are easy to say , Not to this level , It's just a word game .