说明：  VC论坛精华.chm是VC知识库五周年纪念版，包括了VC知识的精华讲解，学习VC的朋友可以来看看。
(The essence of VC forums. Chm Knowledge is the VC version of the fifth anniversary, including the VC to explain the essence of knowledge, learning VC friends can come take a look at.)