二进制累加器：实现多个二进制数累加，有复位，按键防反弹等功能（每按一次作一次累加，累加数由若干位开关表示，结果由若干位LED输出。-Binary accumulator: accumulation of multiple binary number, there are reset, key features such as anti-bounce (each time I press to make a cumulative, acc