SHC文件库：和朋友聊起电路板元件库建立话题时，想起了3年多前为公司白手起家建立protel99元件库的经历。这段经历一直使自己受益至今。同时，看到散落于网络的自己整protel99元件库被越来越多的朋友所下载使用，感到无比欣慰。因为我一直践行着“资源共享才有价值”这一信条。整理protel99建库规则，如今看来很简单，却也不完美，现在原封不动的同大家分享，仅供参考!-And friends, chatting about the establishment of circuit board component library topic, recalled three years ago for the company from scratch to establish protel99 component library experience. The experience so far has been to benefit himself. Meanwhile, scattered on the network' s own to see the whole protel99 component library has been downloaded more and more friends to use, very satisfied. Because I have been practicing the " sharing of resources have value"　of this doctrine. Finishing protel99 Database rule, now seems very simple, but it is not perfect, and now we share the same intact for reference purposes only!