菜鸟驾到--js实现进度条
<!doctype html>
<html>
<head>
<meta charset="utf-8">
<title>进度条的获取</title>
<style>
#one{width:200px;height:20px;border:solid 1px black;}
#div1{width:2px;height:20px;background:#33CCFF;}
</style>
<script>
window.onload = function(){
//获取页面的元素
var div1 = document.getElementById("div1");
var d2 = document.getElementById("d2");
var a = 2;
//计时器进行进度条宽度的添加
setInterval(function(){
a++;
if(a<=200){
div1.style.width = a +"px";
d2.innerHTML = parseInt(a/2) +"%"
}
},50)
}
</script>
</head>
<body>
<h1>进度条</h1>
<div id="one">
<div id="div1"></div>
</div>
</body>
</html>
