#include <FastLED.h>

#define LED 2
#define NUM 80

CRGB leds[NUM]; 

void setup() {
  // put your setup code here, to run once:
  FastLED.addLeds<WS2812,LED,RGB>(leds,NUM);

}
//leds[i] = CRGB (random(0,255),random(0,255),random(0,255));
void loop() {
  // put your main code here, to run repeatedly:
  for(int i = 0 ; i < NUM ; i++)
  {
    //fill_gradient_RGB(leds,0,CRGB::Green,5,CRGB::Blue);
    leds[i] = CRGB (random(0,255),random(0,255),random(0,255));
    //(绿，红，蓝)
    /*fill_solid(leds,16,CRGB(107,0,176));
    fill_solid(leds+16,16,CRGB(169,239,13));
    fill_solid(leds+32,16,CRGB(24,29,21));
    fill_solid(leds+48,16,CRGB(147,5,65));
    fill_solid(leds+64,16,CRGB(47,220,31));*/
    FastLED.show();
    delay(25);
  }
}