js实现滑动进度条效果_JavaScript

js实现滑动进度条效果

本文实例为大家分享了js实现滑动进度条效果的具体代码，供大家参考，具体内容如下

进度条：

<!doctype html>
<html>
<head>
 <meta charset="utf-8" />
 <title>js滑动进度条效果</title>
 <style>
  *{margin:0;padding:0;user-select:none;}
  .progress-bar{position:relative;height:10px;width:400px;margin:200px auto;background:#ebeef5;border-radius:10px;}
  .progress-bar .pro-bar{position:absolute;left:0;height:10px;width:10px;background:#409eff;}
  .progress-bar .min-num{position:absolute;left:-20px;top:-5px;}
  .progress-bar .max-num{position:absolute;right:-40px;top:-5px;}
  .progress-bar .block {position:absolute;height:30px;width:10px;background:#ccc;top:-10px;border-radius:10px;}
  .progress-bar .block div{position:absolute;display:none;left:-20px;top:-45px;width:50px;height:30px;text-align:center;line-height:30px;background:#ccc;border-radius:20px;}
  .progress-bar .block:hover div{display:block;font-size:10%;color:#fff;background:#409eff;}
 </style>
</head>
<body>
 <div class="progress-bar">
 <span class="min-num">0</span>
 <span class="max-num">100</span>
 <div class="pro-bar"></div>
 <div class="block">
  <div>0</div>
 </div>
 </div>
</body>
<script>
 (function(){
 let moveblock = document.queryselector('.block');
 let probar = document.queryselector('.pro-bar');
 let flag = false;
 let startx = null;
 let movemax = (400 - 10); // 背景条宽度减去滑块的宽度
 moveblock.onmousedown = function(e){
  startx = e.pagex;
  moveblock.style.left ? moveblock.style.left : moveblock.style.left = '0px';
  let startleft = parseint(moveblock.style.left);
  document.onmousemove = function(e){
  let movex = (e.pagex - startx) > 0 ? true : false;
  let movesection = startleft + (e.pagex - startx);
  // 限定移动范围
  if (movesection >= 0 && movesection <= movemax) {
   let percent = ((startleft + (e.pagex - startx)) / movemax).tofixed(4) * 100;
   percent.tostring().length > 5 ? percent = percent.tostring().substr(0, 5) : percent = percent.tostring();
   moveblock.style.left = startleft + (e.pagex - startx) + 'px';
   probar.style.width = moveblock.style.left;
   moveblock.queryselector('div').innertext = percent + '%';
  }
  };
 };
 // 鼠标松开移除事件
 moveblock.onmouseup = function(){
  document.onmousemove = null;
 };
 })();
</script>
</html>

以上就是本文的全部内容，希望对大家的学习有所帮助，也希望大家多多支持移动技术网。