<!DOCTYPE html>
<html xmlns="http://www.w3.org/1999/xhtml">
<head>
<meta http-equiv="Content-Type" content="text/html; charset=utf-8"/>
<title>jquery实现进度条</title>
<style type="text/css">
body{
padding:30px;
margin-left:450px;
margin-top:200px;
width:350px;
border: 1px solid #98AFB7;
}
.progressBar{
width:280px;
height:20px;
border: 1px solid #98AFB7;
border-radius:8px;
background:#e1dfdf;
}
input{
margin-bottom:15px;
}
span{
position:relative;
top:-20px;
left:290px;
}
#bar {
width: 0px;
height: 20px;
border-radius: 7px;
background: #5EC4EA;
}
</style>
//引入Jquery文件
<script src="Jquerys/jquery.js"></script>
<script type="text/javascript">
function progressBar() {
$("#bar").css("width", "0px");
var speed =20;//进度条的速度
bar = setInterval(function () {
nowWidth = parseInt($("#bar").width());
if (nowWidth <= 279) {
var barWidth = (nowWidth + 1);
$("#bar").css("width", barWidth + "px");
var totla = parseInt($(".progressBar").width())
var ss = barWidth / totla * 100;
$("#span_s").text(ss);
var index = $("#span_s").text().indexOf(".");
if (index != -1) {
var context = $("#span_s").text().substring(0, index);
$("#span_s").text(context);
}
else {
$("#span_s").text(ss);
if (parseInt($("#span_s").text()) == 100) {
alert('完成');
}
}
} else {
clearInterval(bar);
}
}, speed);
}
</script>
</head>
<body>
<input type="button" value="开始" onclick="progressBar()" />
<div class="progressBar"><div id="bar"></div></div><span id="span_s">0</span><span>%</span>
</body>
</html>
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