您的位置:首页 > 其它

Input文本框随着输入内容多少自动延伸

2016-11-30 15:28 411 查看
<!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>
<script language="javascript">
function checkLength(which) {
var oTextCount = document.getElementById("char");
iCount = which.value.replace(/[^/u0000-/u00ff]/g,"aa");
oTextCount.innerHTML = "<font color=#FF0000>"+ iCount.length+"</font>";
which.style.border = '1px dotted #FF0000';
which.size=iCount.length+2;
}
</script>
</head>
<body>
<input name="words" size="2"    onkeyup="checkLength(this)"/>
<span id="char">0</span>个字符
</body>
</html>
内容来自用户分享和网络整理,不保证内容的准确性,如有侵权内容,可联系管理员处理 点击这里给我发消息
标签: