用大双色LED数码管做的电子钟，可分时用两种颜色显示时和分钟，最关键的是用两个按键实现调时功能，可做为菜鸟的参考。-Two-color LED digital tube with a large electronic clock to do, sharing with two colors can be displayed and minutes, the most critical adjustment is achieved when the two function keys can be used as a reference rookie.