VV-l_: 问题:CAD总是出现未处理异常原因:出现这一错误的原因是Microsoft.netframework3.5servicepack1安装不当。措施:可以直接从以下微软网站上下载并安装Microsoft.netframework3.5sp1:http://www.Microsoft.com/downloads/detAIls.aspx?familyID=ab99342f-5d1a-413D-8319-81da479ab0d7&displaylang=en成功安装.netframework3.5sp1....