这个是相当不错的EDA编程，是电子设计大赛准备期间我引以为自豪的一个，能产生正弦，余弦，方波（可调占空比），三角波，锯齿波以及各种叠加波形，可以自行设置。-The EDA is a very good programming, is the Electronic Design Competition during the preparation I was proud to one capable of producing sine, cosine, square wave (variable