说明：  主要内容： 一.学会自己画简单的SCH文件 二.学会从SCH到PCB的转变,并且进行自动布线 三.学会自己做SCH零件。说明:SCH零件库用来画图和自动布线 四.学会自己做PCB零件封装 五.一些高级的常用技巧
(Main content: 1. Institute of SCH has painted himself a simple document 2. Learn from the SCH to PCB changes, and automatic routing 3. Learn to make their own SCH parts. Description: SCH parts library for drawing and auto-routing 4. Learn to make their own PCB components package 5. Frequently used some advanced techniques)