<script language="JavaScript">
function check(){
alert(document.from1.name.length);
}
</script>
<form name="from1" method="post" onSubmit="return check();">
<input name="name" type="text" id="name">
<input name="name" type="text" id="name">
<input name="name" type="text" id="name">
<input type="submit" name="Submit" value="提交">
</form>
function check(){
alert(document.from1.name.length);
}
</script>
<form name="from1" method="post" onSubmit="return check();">
<input name="name" type="text" id="name">
<input name="name" type="text" id="name">
<input name="name" type="text" id="name">
<input type="submit" name="Submit" value="提交">
</form>
解决方案 »
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