这篇文章主要为大家详细介绍了基于javascript实现飘落星星特效，具有一定的参考价值，感兴趣的小伙伴们可以参考一下
本文实例为大家分享了js飘落星星特效的具体代码，供大家参考，具体内容如下
1.效果图
2.代码
<!doctype html>
<html lang="en">
<head>
<meta charset="utf-8">
<title>title</title>
<style>
img{
position: absolute;
}
body {
background-image: url(img/bg.jpg);
background-size: 100%;
}
</style>
<script>
function star() {
this.speed=10;
this.img=new image();
this.img.src="img/star"+parseint(math.random()*4+1)+".png";
this.img.style.width=50+'px';
this.img.style.height=50+'px';
this.img.style.top=math.random()*window.innerheight+1+'px';
this.img.style.left=math.random()*window.innerwidth+1+'px';
document.body.appendchild(this.img);
}
star.prototype.slip=function () {
var that=this;
function move() {
that.img.style.top=that.img.offsettop+that.speed+'px';
console.log(that.img.offsettop+"star");
console.log(window.innerheight+"window");
if(that.img.offsettop>window.innerheight){
clearinterval(sh);
that.img.style.height=0;
that.img.style.width=0;
}
}
var sh=setinterval(move,100);
}
setinterval(function () {
for(var i=1;i<5;i++){
new star().slip();
}
},1000)
</script>
</head>
<body>
</body>
</html>
以上就是javascript如何实现飘落星星特效的实例代码详解的详细内容。