jquery this 与javascript的this

<div class="list">
                    <table>
                        <thead>
                            <tr>
                                <th width="110" rowspan="2">用户名id</th>
                                <th width="155" rowspan="2">用户名</th>
                                <th width="80" rowspan="2">姓名</th>
                                <th width="240" rowspan="2">手机号</th>
                                <th width="140" rowspan="2">qq</th>
                                <th width="140" rowspan="2">获奖时间</th>
                                <th width="140" rowspan="2">操作</th>
                            </tr>
                        </thead>
                        <tbody>
                                                                                    <tr>
                                <td>2007502</td>
                                <td>asdf123g</td>
                                <td>你好</td>
                                <td>18288668556</td>
                                <td></td>
                                <td>2014-06-18</td>
                                <td>
                                                                <a data-url="http://m.9first.com/admin/activity/awardCheck" data-value="122" class="award-give js-aaa">未发放</a>
                                                                
                                </td>

                            </tr>
                                                        <tr>
                                <td>2007502</td>
                                <td>asdf123g</td>
                                <td>你好</td>
                                <td>18288668556</td>
                                <td></td>
                                <td>2014-06-18</td>
                                <td>
                                                                <a data-url="http://m.9first.com/admin/activity/awardCheck" data-value="101" class="award-give js-aaa">未发放</a>
                                                                
                                </td>

                            </tr>
                                                        <tr>
                                <td>2021188</td>
                                <td>jami12123</td>
                                <td>test</td>
                                <td>15873124444</td>
                                <td></td>
                                <td>2014-06-18</td>
                                <td>
                                                                <a href="javascript:;" class="award-gived">已发放</a>
                                                                
                                </td>

                            </tr>
                                                        <tr>
                                <td>1722723</td>
                                <td>songjing2013</td>
                                <td>songjing</td>
                                <td>13123233232</td>
                                <td></td>
                                <td>2014-06-18</td>
                                <td>
                                                                <a data-url="http://m.9first.com/admin/activity/awardCheck" data-value="35" class="award-give js-aaa">未发放</a>
                                                                
                                </td>

                            </tr>
                                                        <tr>
                                <td>1722723</td>
                                <td>songjing2013</td>
                                <td>songjing</td>
                                <td>13123233232</td>
                                <td></td>
                                <td>2014-06-18</td>
                                <td>
                                                                <a data-url="http://m.9first.com/admin/activity/awardCheck" data-value="33" class="award-give js-aaa">未发放</a>
                                                                
                                </td>

                            </tr>
                                                                                    
                        </tbody>
<!--                        <tfoot>
                            <tr>
                                <td colspan="10">
                                    <a href="">上一页</a>
                                    <a href="">1</a>
                                    <a href="">2</a>
                                    <span>……</span>
                                    <a href="">4</a>
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                                </td>
                            </tr>
                        </tfoot>-->
                    </table>
                </div>

<script type="text/javascript">
$(function() {
    var $wrap = $('.list');
    $wrap.on('click','.award-gived',function(){
        alert("奖品已发放！");
    });
    $wrap.on('click', '.js-aaa', function() {
        var $this = $(this),
            url = $this.data('url'),
            v = $this.data('value');
        
        if(confirm('确认标记奖品为已发放？')){

        $.ajax({
                url: url,
                data: {id: v},
                type: 'post',
                success: function(response) {
                    if(response.status == 0) return alert('操作失败！');
                    else{
                        alert('操作成功！');
                        //window.location.reload();
                        $this.html('已发放').removeClass('js-aaa');
                    }
                    
                }
            });
      }
    });
});
</script>

jquery的写法：var $this = $(this),
原生js的写法： var $this = this,

区别还是很大的。原生的里面不能操作自己添加的属性，
而jquery的里面可以这样操作 var url = $this.data('url'),

对于js写的比较少的人，作为一个小的知识点~~