system1

代码说明：

  按偏差的比例、积分和微分进行控制的调节器简称为PID调节器，是在连续系统中技术最为成熟，应用最为广泛的一种调节器。(According to the proportion of deviation and differential, integral controlling the regulator referred to as PID adjustor, is in continuous system in most mature technique, the most widely used a regulator.)