SOURCE

console 命令行工具 X clear

                    
>
console
class ball{
    constructor(X,Y,D,Tspeedx,Tspeedy)
    {
    this.ballx=X
    this.bally=Y
    this.d=D
    this.ballspeedx=Tspeedx
    this.ballspeedy=Tspeedy
    this.angle=(0)
    }

translating(){
    push()
         translate(this.ballX,this.ballY);
         translate(this.ballX,this.ballY)
    this.ballx +=random(-this.ballspeedX,this.ballspeedY)
    this.bally +=random(-this.ballspeedX,this.ballspeedY)
    }
    drawing() {
        fill(225); 
        ellipse(0,0,this.D,this.D)
        pop();
    } 
}
let ballA
function setup(){
    createCanvas(600,600)
    background(200)
    ballA=new ball(300,300,50,50,50)
}

function draw(){
    ballA.translating()
    ballA.drawing()
}
<script src="https://cdnjs.cloudflare.com/ajax/libs/p5.js/1.1.9/p5.min.js"></script>