功能:用户键(即抢答者):p32,p33 主持人键:p34,

用法:1.主持人按开启键,以示开始 2.用户抢答,若到了10秒还没有按键就退出 3.显示用户号

4.等待主持人清除显示 5.清除后蜂鸣,以示庆祝-Function: The user key (the answer in person): p32, p33　host key: p34,　Usage: 1 host press the Open button to show the beginning　2 users answer in 10 seconds if the button has not quit　3 shows the user number　4. wait for the host to clear the display　5 cleared beep, to celebrate