引力

const yellow = [];

function setup() {

    background(0)

    createCanvas(500, 500);

    for (let i = 0; i < height; i++) {

        yellow[i] = floor(random(5, 5));

    }

    noLoop();

}

function draw() {

    background(0);

    fill(255,255,0);

    for (let i = 0; i < yellow.length; i++) {

        fill(255,255,0);

        stroke(yellow[i]);

        circle(i, i, i/2, i);

        circle(0, 0, i/2, i);

    }}