利用MATLAB仿真设计出前馈反馈水箱模型，PID已经调节完毕，可以直接使用(The feedforward feedback water tank model is designed by MATLAB simulation. PID has been adjusted and can be used directly.)

利用MATLAB中simulink实现串级水箱模型。可以直接使用！(The cascade water tank model is realized by using Simulink in MATLAB. Can be used directly!)