あるでぃーの

3.cpp

int led[10];

void init_led () {
	for (int i=0; i<10; i++) {
		led[i] = i + 2;
		pinMode(led[i], OUTPUT);
	}
}

void light_led (char *num) {
	for (int i=0; num[i] != '\0'; i++) {
		if (num[i] == '0') {
			digitalWrite(led[i], LOW);
		} else if (num[i] == '1') {
			digitalWrite(led[i], HIGH);
		}
	}
}

void setup() {
   init_led();
}

void loop() {
	light_led("0111111111");
	delay(5);
	light_led("1000001000");
        delay(1 5);
	light_led("0111111111");
        delay(5);
}