url地址验证

<!--url地址验证，本案例使用了jQuery的jQuery validate插件-->
<script src="js/jquery.validate.min.js"></script>
<script>
    $().ready(function() {
        $("#myform").validate();
    });
    jQuery.extend(jQuery.validator.messages, {
        required: "必填",
        url: "请输入合法的网址",
    });
</script>
<form action="" id="myform">
<p>
    <label for="curl">URL</label>
    <input id="curl" type="url" name="url" required>
</p>
</form>
<!--url地址验证end-->