JavaScript带有百分比的滑动条效果
分类：实例代码
JavaScript带有百分比的滑动条效果属于前端实例代码，有关更多实例代码大家可以查看。
分享一段代码实例，它实现了带有百分比的滑动调效果，在实际应用中还是比较美观的。
代码实例如下：
<!DOCTYPE html>
<html lang="en">
<head>
<meta charset="UTF-8">
<title>原生js实现可拖拽进度条效果</title>
<style>
.scale_panel {
margin-top: 50px;
width: 600px;
position: relative;
line-height: 18px;
left: 60px;
top: -0px;
}
.scale .jindu_btn {
position: absolute;
left: -10px;
top: 10px;
height: 18px;
width: 18px;
background-color: #00ffff;
border-radius: 20px;
margin-top: -18px;
cursor: pointer;
}
.jindu_btn span {
font-size: 16px;
position: absolute;
top: -20px;
left: 0px;
}
.scale {
background-repeat: repeat-x;
background-position: 0 100%;
background-color: #efefef;
width: 600px;
height: 5px;
position: relative;
font-size: 0px;
border-radius: 3px;
}
.scale div {
background-repeat: repeat-x;
background-color: #00ffff;
width: 0px;
position: absolute;
height: 5px;
width: 0;
left: 0;
bottom: 0;
border-radius: 3px;
}
</style>
</head>
<body>
<div class="scale_panel">
<div class="scale" id="bar">
<div id="jingxing"></div>
<div class="jindu_btn" id="btn">
<span id="title">0%</span>
</div>
</div>
</div>
<script>
var scale = function (btn, bar, title) {
this.btn = document.getElementById(btn);
this.bar = document.getElementById(bar);
this.title = document.getElementById(title);
this.step = this.bar.getElementsByTagName("div")[0];
this.init();
};
scale.prototype = {
init: function () {
var f = this,
g = document,
b = window,
m = Math;
f.btn.onmousedown = function (e) {
var x = (e || b.event).clientX;
var l = this.offsetLeft;
var max = f.bar.offsetWidth - this.offsetWidth;
g.onmousemove = function (e) {
var thisX = (e || b.event).clientX;
var to = m.min(max, m.max(-2, l + (thisX - x)));
f.btn.style.left = to + 'px';
f.ondrag(m.round(m.max(0, to / max) * 100), to);
b.getSelection ? b.getSelection().removeAllRanges() : g.selection.empty();
};
g.onmouseup = new Function('this.onmousemove=null');
};
},
ondrag: function (pos, x) {
this.step.style.width = Math.max(0, x) + 'px';
this.title.innerHTML = pos + '%';
}
}
new scale('btn', 'bar', 'title');
</script>
</body>
</html>
JavaScript带有百分比的滑动条效果，这样的场景在实际项目中还是用的比较多的，关于JavaScript带有百分比的滑动条效果就介绍到这了。