My Sketch

function setup() {

  createCanvas(windowWidth, windowHeight);

  background(255);

}

​

function draw() {

  background(255);

  noFill(); 

  ellipse(width/2,height/2,50,50);

  rectMode(CENTER)

  // circle(width/2,height/2,50)

  // rect(50+frameCount*5,50+frameCount*5,100,100)

​

  // fill('red')

  noFill()

  // strokeWeight(frameCount%2 ==0?5:1)

  // //偶數曾比較厚 基數比較少

  // stroke(mouseX)

  // rect(width/2,height/2,100+frameCount*20,50+mouseX)

  // print(frameCount)

  fill("black")

  textSize(50)

  text(int(mouseX)+","+int(mouseY),50,50)

  triangle(440,140,160,600,800,600)

}