SOURCE

console 命令行工具 X clear

                    
>
console
let c=[];
function setup(){
    createCanvas(480,480);
    background(220);
    for(let i=0;i<24;i++){
        c[i]=random(255);
    }
}
function draw(){
    for(let x=0;x<24;x++){
        fill(c[x]);
        rect(x*20,0,20,480);
    }
}
<script src="https://cdnjs.cloudflare.com/ajax/libs/p5.js/1.1.9/p5.min.js"></script>