A、#define PWM_PERIOD 1000
B、#define_PWM_PERIOD 1000
C、define PWM_PERIOD 1000
D、#define PWM_PERIOD _1000
喵查答案:#define PWM_PERIOD 1000
A、#define PWM_PERIOD 1000
B、#define_PWM_PERIOD 1000
C、define PWM_PERIOD 1000
D、#define PWM_PERIOD _1000
喵查答案:#define PWM_PERIOD 1000