代码如下： <script LANGUAGE="JAVASCRIPT"> var timerID=null; var count=0; var running=false; function RandomNumber(max) {var today = new Date(); var num= Math.round((Math.abs(Math.sin(today.getTime()))*1000))%max+1; return num; } function stopaction() {if (running) clearTimeout(timerID); running=false; } function startaction() { stopaction(); action(); } function action() {if (count!=100) { document.outputform.output.value="正在格式化硬盘，目前进度："+count+"%"; count++; timerID=setTimeout("action()",200+RandomNumber(500)); running=true; } else { document.outputform.output.value="格式化完毕 ... ..."; stopaction(); } } </script> <body onload="startaction()"> <p>虚拟格式化</p> <form name="outputform"> <p><input TYPE="TEXT" NAME="output" size="50"></p> </form>
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