js onkeydown 事件回车提交表单

最新推荐文章于 2023-05-03 21:45:30 发布

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最新推荐文章于 2023-05-03 21:45:30 发布

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分类专栏： javascript 文章标签： IE Firefox Opera 浏览器 Java

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[code]<html>
<body>
<script type="text/javascript">
function noNumbers(e)
{
var keynum;
var keychar;
var numcheck;

if(window.event) // IE
{
keynum = e.keyCode;
}
else if(e.which) // Netscape/Firefox/Opera
{
keynum = e.which;
}
keychar = String.fromCharCode(keynum);
alert(keychar)
numcheck = /\d/;
return !numcheck.test(keychar);
}
</script>

<form>
Type some text (numbers not allowed):
<input type="text" onkeydown="return noNumbers(event)" />
</form>

</html>[/code]
==================================
//如果输入回车，则提交表单
[code]<input type="text" onkeydown="if(event.keyCode==13)document.forms[0].submit();"/>[/code]