群青
幼苗
共回答了9个问题采纳率:88.9% 举报
I use the same packaging on theses calculagraphs of hour,minute,second,year and day,in this way , i can link them up exactly and simply with just the same Logical connection method.
Finally I applied this Circuit simulation,Multisim to finish the design of digital watch.
1年前
4