PROTEUS，电路设计及仿真培训全教程。专业电子仿真软件，估计做IT硬件的朋友，绝对都用过。但见于全英文界面，又不了了解。所以这个教程，一定有用。-PROTEUS, circuit design and simulation training tutorial. The professional electronic simulation software, it is estimated that friends do IT hardware, definitely have used. Seen in full English interface, without understanding. This tutorial is certainly useful.