#include #include #include void main（） { while(1) { system("echo 1 > /sys/class/leds/green_led/brightness"); system("echo 0 > /sys/class/leds/red_led/brightness"); sleep(1); system("echo 0 >/sys/class/leds/green_led/brightness"); system("echo 1 > /sys/class/leds/red_led/brightness"); sleep(1); } } sudo chmod 777 brightness 最高权限 给brightness最高的执行权限