matlab的c语言s函数，实现手动与自动控制的无扰切换，具有两个参数：一个是切换信号，为1时自动控制，为0时手动控制；另一个是手动控制值。-Matlab language c s function, manual and automatic control to achieve the Bumpless Transfer, with two parameters : a signal is switched to 1:00 automation, 0:00 a.m. to manual control; Another is the value of manual control.