Protel DXP作为一款专用的电子线路设计软件，其强大的设计功能得到了电子线路设计人员的青睐。从原理图设计和PCB设计两大模块出发，阐述了Protel DXP在使用中的一些设计技巧和原则。

As a professional software of circuit design， Protel DXP has powerful design functions，which are enjoyed by many technicians of electronic circuit．This article elaborates some design skills and principles of Protel DXP from both SCH design and PCB design．