这是用51单片机做的一个抢答器，右四路抢答，分别根据按键的不同，发出不同的抢答声音。-This is done with a single-chip 51 Responder, the right answer in four, respectively, depending on the key issue to answer in a different voice.

这是用单片机设计的抢答器，可以用于智力抢答等环节，是我做的课程设计。-This is a single-chip design Responder, Responder can be used for intelligence and other aspects that I do curriculum design.