日期:2014-05-19 浏览次数:20835 次
<html>
<head>
<title>XXXXXX</title>
<script language="javascript">
function test() {
var txt = document.getElementById("ta").value;
document.getElementById("ta").style.width = Math.ceil(txt.length / 2) * 10;
}
</script>
</head>
<body onLoad="test();">
<textarea id="ta" style="overflow:hidden; ">erwtewrtwertertretwetert</textarea>
</body>
</html>