canvas绘制万花筒效果（代码分享）
话不多说，请看代码：
<!doctypehtml>
<html>
<head>
<metacharset="utf-8">
<title>万花筒</title>
<style>
canvas{
background:#eee;
}
</style>
<script>
window.onload=function(){
varcanvas=document.getElementById("canvas");
varcobj=canvas.getContext("2d");
vararr=[];
vart=setInterval(function(){
cobj.clearRect(0,0,600,600);
for(vari=0;i<arr.length;i++){
cobj.save();
cobj.translate(300,300);
cobj.scale(arr[i].scales,arr[i].scales);
cobj.rotate(arr[i].angle*Math.PI/180);
cobj.fillStyle=arr[i].color;
cobj.fillRect(arr[i].num,arr[i].num,30,30);
cobj.restore();
}
},50);
setInterval(function(){
for(vari=0;i<arr.length;i++){
if(arr[i].num<=0){
arr.splice(i,1);
continue;
}
arr[i].angle+=2;
arr[i].num-=0.2;
arr[i].scales-=0.002;
if(arr[i].scales<=0.2){
arr[i].scales=0.2;
}
}
},50);
setInterval(function(){
varrect={angle:0,num:150,scales:1,color:"rgb("+parseInt(Math.random()*255)+","+parseInt(Math.random()*255)+","+parseInt(Math.random()*255)+")"};
arr.push(rect);
},600);
}
</script>
</head>
<body>
<canvaswidth="600"height="600"id="canvas"></canvas>
</body>
</html>
以上就是本文的全部内容，希望本文的内容对大家的学习或者工作能带来一定的帮助，同时也希望多多支持毛票票！