一个pid算法程序，使用的keilc编译。单片机使用的是sm89c52，算法简单，通过实际调试通过，好用，对编写pid温度控制程序的工程师有一定的参考价值-Pid algorithm of a program, use the keilc compiled. Microcontroller using sm89c52, algorithm is simple, practical debugging through the adoption of easy to use, pid temperature control procedures on the preparation of the engineers have some value ... ...