cad线条变色，1-225颜色变色，简单试用(CAD line discoloration)

可以通过图层、颜色、字高、文字内容、线形等各种属性来筛选需要的实体，非常好用。(You can filter the required entities by layer, color, word height, text content, linear and other attributes, which is very easy to use.)