<form action="" method="post" enctype="multipart/form-data">

        <label>请选择上传的图片</label> <a href="javascript:addimg()">增加图片</a>

        <div class="mdiv" id="mdiv">

            <div class="iptdiv">

                <input type="file" name="img[]" class="ipt" /><a href="#"

                    name="rmlink">XXX</a>

            </div>

        </div>

        <input type="submit" name="submit" value="上传图片" />

    </form>

    <script type="text/javascript">

        $(document).ready(function() {

            bindListener();

        })

        function addimg() {

            $("#mdiv").append(

                            '<div class="iptdiv" ><input type="file" name="img[]" class="ipt" />'+

                            '<a href="#" name="rmlink">XXX</a></div>');

            //为新元素节点添加事件侦听器

            bindListener();

        }

        function bindListener(){

            $("a[name='rmlink']").unbind().click(function(){

                $(this).parent().remove();

            })

        }

    </script>