【CSS系列】获取实时数据做进度 

<!DOCTYPE html>
<html lang="en">
<head>
    <meta charset="UTF-8">
    <title>实时数据进度条</title>
  <style type="text/css">
    *{
      padding: 0;
      margin: 0;
    }
    .loading{
      width: 100%;
      height: 100%;
      position: fixed;
      top:0;
      left: 0;
      z-index: 100;
      background: #FFFFFF;
    }
    .loading .pic{
      width:100px;
      height: 100px;
      position: absolute;
      top:0;
      bottom: 0;
      left:0;
      right:0;
      margin: auto;
      border: 1px solid #FF3333;
      font-size: 30px;
      text-align: center;
      line-height: 100px;
    }

    .loading .pic span{
      display: block;
      width: 80px;
      height: 80px;
      position: absolute;
      top:10px;
      left: 10px;
      /*background: #00CC00;*/
      border-radius: 50%;
      box-shadow: 0 3px 0 #666;
      animation: rotate 1s infinite linear;
      -webkit-animation: rotate 1s infinite linear;
    }

    @keyframes rotate {
      0%{transform: rotate(0deg);}
     100%{transform: rotate(360deg);}
    }

    @-webkit-keyframes rotate {
      0%{-webkit-transform: rotate(0deg);}
      100%{-webkit-transform: rotate(360deg);}
    }

  </style>

  <script src="../js/jquery-3.2.1.js"></script>
  <script type="text/javascript">
    $(
        function () {
        var img = $("img");
        var num = 0;
        img.each(function (i) {
          var oImg = new Image();
          oImg.onload = function () {
              oImg.onload = null;
            num ++;
            $(".loading b") .html(parseInt(num/$("img").length*100)+"%");
            if(num >= i){
                $(".loading").fadeOut();
            }
          }
          oImg.src=img[i].src;

        })
        }
    )
  </script>
</head>
<body>
<div class="loading">
  <div class="pic">
    <span></span>
    <b>0%</b>
  </div>
</div>
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</body>
</html>

 

posted @ 2017-08-06 17:18  霓裳梦竹  阅读(344)  评论(0)    收藏  举报