一个CAD软件的源代码，功能包括dxf文件兼容、常用绘图功能、缩放功能。-Allow phonetic typingType text or a website address or translate a document. Cancel Yīgè CAD ruǎnjiàn de yuán dàimǎ, gōngnéng bāokuò dxf wénjiàn jiānróng, chángyòng huìtú gōngnéng, suōfàng gōngnéng. automati