文件里面包含了直流电机的各种仿真，包括调速，制动，瞬态响应，稳态响应等，以及直流发电机的各种仿真，每个例程都经过调试，可直接运行-File which contains a variety of DC motor simulation, including simulation speed, braking, transient response, steady-state response, as well as direct current generators, each routine