<!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=gb2312" />
<title>无标题文档</title>
</head>
<body>
<script language="javascript">
function isChn(str){
var reg = /^[u4E00-u9FA5]+$/;
if(!reg.test(str)){
document.getElementById("isChinese").innerHTML='您输入的不对';
return false;
}
else{
document.getElementById("isChinese").innerHTML='';
return true;
}
}
</script>
<form action="#" method="post">
<input type="text" oninput="isChn(this.value)" ><span id="isChinese"></span>
</form>
</body>
</html>
loading