说明：  杀查cad 病毒。特征在运行 cad后生成很多auto.lsp,auto.fas,autoapq.lsp 干扰正常运行，使速度放慢，甚至无法打开dwg
(Search cad kill the virus. Characteristics of running cad generated a lot of auto.lsp, auto.fas, autoapq.lsp interfere with normal operation, so that slowed down, or even unable to open dwg)