js 进度条实现代码_javascript技巧

<title>进度条</title> <style type="text/css"> body{ text-align:center; } .graph{ width:450px; border:1px solid #F8B3D0; height:25px; } #bar{ display:block; background:#FFE7F4; float:left; height:100%; text-align:center; } #barNum{ position:absolute; } </style> <script type="text/javascript"> function $(obj){ return document.getElementById(obj); } function go(){ $("bar").style.width = parseInt($("bar").style.width) + 1 + "%"; $("bar").innerHTML = $("bar").style.width; if($("bar").style.width == "100%"){ window.clearInterval(bar); } } var bar = window.setInterval("go()",50); window.onload = function(){ bar; } </script> <div class="graph"> <strong id="bar" style="width:1%;"></strong> </div>
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