js點擊按鈕后，增加文本框

靜態html:

<div class="box">
    <input type="text" name="" id=""><span class="dj" style="width:20px;height: 20px;background: orange;margin-right: 10px;">&nbsp;+ &nbsp;</span>
</div>

方法一：

<script type="text/javascript">
    $('.dj').click(function () {
        $('.box').append( " </br><input type='text' name='' id=''> " );
    });
</script>