js实现正方形颜色从下往上升的效果

前端技术 2023/09/06 JavaScript 
<!DOCTYPE html PUBLIC \"-//W3C//DTD XHTML 1.0 Transitional//EN\" \"http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd\">
<html xmlns=\"http://www.w3.org/1999/xhtml\">
<head>
<meta http-equiv=\"Content-Type\" content=\"text/html; charset=utf-8\" />
<title>无标题文档</title>
</head>
<script src=\"jquery-1.8.2.js\" type=\"text/javascript\"></script>
<script type=\"text/javascript\">
 $(function(){
  interid=setInterval(Showgao,1);
  var i=1;
  $(\'#top\').height(8);
  $(\'#buttom\').css(\'marginTop\',42);
  $(\'#buttom\').css(\'background\',\'#d6d6d6\');
  function Showgao()
  {
    var oldH=$(\'#buttom\').css(\'marginTop\');
    var h= oldH.substr(0,oldH.indexOf(\'px\'));
    $(\'#buttom\').css(\'marginTop\',h-1);
    $(\'#buttom\').height(i);
    i++;
    if(i==42){clearInterval(interid);}
  }
  
  interid1=setInterval(Showgao1,1);
  var i1=1;
  $(\'#top1\').height(4);
  $(\'#buttom1\').css(\'marginTop\',46);
  $(\'#buttom1\').css(\'background\',\'red\');
  function Showgao1()
  {
    var oldH=$(\'#buttom1\').css(\'marginTop\');
    var h= oldH.substr(0,oldH.indexOf(\'px\'));
    $(\'#buttom1\').css(\'marginTop\',h-1);
    $(\'#buttom1\').height(i1);
    i1++;
    if(i1==30){clearInterval(interid1);}
  }
});
</script>
<body>
<style>
  .container{width:20px;height:50px;border:1px solid #999;font-size:10px;float:left;margin-left:5px;}
</style>
<div class=\"container\" onclick=\"javascript:alert(1);\" >
   <div id=\"top\">82%</div>
   <div id=\"buttom\"></div>
</div>
<div class=\"container\" onclick=\"javascript:alert(1);\" >
   <div id=\"top1\" >62%</div>
   <div id=\"buttom1\"></div>
</div>
</body>
</html>

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