pads-2007,是比prottel更实用，功能更强大的一种电路板的绘制工具，本文阐述了其logic部分基本操作方法，适合自学PADS工具的人们。-pads-2007, is more practical than prottel, more powerful, a circuit board drawing tools, this article describes the basic operation methods, tools for self-PADS people.