js检测是否存在中文

2023-08-03 17:25:50

代码如下：

<!DOCTYPE html>

<html>

<head>

<meta charset="utf-8">

<meta http-equiv="X-UA-Compatible" content="IE=edge,chrome=1">

<title>checkbox</title>

<meta name="description" content="">

<meta name="keywords" content="">

<link href="" target="_blank" rel="external nofollow" rel="stylesheet">

</head>

<body>

<form>

<label>选中：</label><input type="text" οnkeyup="funcChina()" >

</form>

<script type="text/javascript">

function funcChina(){

var obj = document.getElementsByTagName('input')[0].value;

var patthrn=/.*[\u4e00-\u9fa5]+.*$/;

if(patthrn.test(obj))

{

alert("不能含有汉字！");

return false;

}

}

</script>

</body>

</html>

转载于:https://www.cnblogs.com/jackzzx/p/4658827.html

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