用stm32f103rct6控制光敏电阻，核心思想是pwm控制，根据光敏电阻检测的光照强度，将其作为输入信号来调整pwm波，从而改变灯光亮度。(Using stm32f103rct6 to control the photoresist, the core idea is PWM control. According to the light intensity detected by the photoresist, it is used as the input signal to adju