于细微处显精神——对“程四定理”的宏观把握和微观实践

Manifest Faith from the Details——Comprehend the “the forth theorem of Cheng’s” in macroscopic view and fulfill it in microscopic practice

引入程氏定理第四条“用户永远都是正确的”这一观念，并就这一观念提出自己的看法。在实践中对此观念加以应用。

This paper introduces the fourth item of the Cheng,s theorem which is ＂the users are always correct＂, and proposes its own view. Apply it in the reality practice.