输入框中基于ｊａｖａｓｃｒｉｐｔ的数据格式的验证

来源：互联网发布：德国布线火遍网络编辑：程序博客网时间：2024/05/16 17:59

<!DOCTYPE html><html>  <head>    <title>js_reg.html</title>    <meta http-equiv="keywords" content="keyword1,keyword2,keyword3">    <meta http-equiv="description" content="this is my page">    <meta http-equiv="content-type" content="text/html; charset=UTF-8">    <!--<link rel="stylesheet" type="text/css" href="./styles.css">-->    <script type="text/javascript">        var checkReg = /^[a-zA-Z]\d\w{4,6}\d$/;        function checkUsername(obj){            var username;            username = obj.value;            if(checkReg.test(username)){                alert('格式正确');            }else{                alert('error');            }        }    </script>  </head>  <body>    <form action="" id="f1">        用户名:<input type="text" onblur="checkUsername(this)"><br>        <input type="submit" value="提交">    </form>  </body></html>

0 0