jquery添加自定义校验

<script type="text/javascript" src="js/jquery.validate.js"></script>
<script type="text/javascript" src="js/jquery.metadata.js"></script>
<script type="text/javascript" src="js/jquery.validate.message_cn.js"></script>

<script type="text/javascript">
    $().ready( function() {
        jQuery.validator.addMethod("noChinese", function(value, element) {   
                var myReg = /^[a-zA-Z0-9_]{0,}$/;  
            return this.optional(element) || (myReg.test(value));
        });
    })
</script>

并且在jquery.validate.message_cn.js里添加   noChinese: jQuery.format("不能含有中文或特殊字符"),

在页面应用：class="required noChinese"