public function addgood($id)
 {
     $tag = htmlspecialchars($_POST['tag']);
     $num = 1;
     $id = htmlspecialchars($_POST['id']);
     $price = get_good_price($id);
     if (!isset($_SESSION['cart'])) {
         $_SESSION['cart'] = array();
     }
     $item = array();
     //如果该商品已存在则直接加其数量
     if (isset($_SESSION['cart'][$id])) {
         $_SESSION['cart'][$id]['num'] += $num;
         $item['id'] = $id;
         $item['price'] = $price;
         $item['num'] = $_SESSION['cart'][$id]['num'];
         $_SESSION['cart'][$id] = $item;
         $exsit = "1";
     } else {
         $item['id'] = $id;
         $item['price'] = $price;
         $item['num'] = $num;
         $_SESSION['cart'][$id] = $item;
         $exsit = "0";
     }
     $data['status'] = 1;
     $data['price'] = get_good_price($id);
     $coverid = get_cover_id($id);
     $data['src'] = get_good_img($coverid);
     $data['title'] = get_good_name($id);
     //登录用户,处理详情页ajaxt提交的数据保存到数据库
     if (is_login()) {
         $table = D("shopcart");
         $data['goodid'] = $id;
         $data['num'] = $num;
         $member = D("member");
         $uid = $member->uid();
         $data['uid'] = $uid;
         $pnum = M("shopcart")->where("goodid='{$id}'and uid='{$uid}'")->getField("num");
         if ($pnum) {
             $exsit = "1";
             $data['num'] = $pnum + $num;
             $table->where("goodid='{$id}'and uid='{$uid}'")->save($data);
         } else {
             $data['num'] = $num;
             $table->add($data);
             $exsit = "0";
         }
         $data['sql'] = 'sql';
         $data['num'] = M("shopcart")->where("goodid='{$id}'and uid='{$uid}'")->getField("num");
         $data['msg'] = '添加成功';
         $data['exsit'] = $exsit;
         $this->ajaxReturn($data);
     } else {
         $data['exsit'] = $exsit;
         $data['num'] = $item['num'];
         $data['msg'] = '添加成功';
         $this->ajaxReturn($data);
     }
 }
        echo "";
    } else {
        foreach ($__LIST__ as $key => $vo) {
            $mod = $i % 2;
            ++$i;
            ?>
<tr>
		 <td align="center"><?php 
            echo $vo["goodid"];
            ?>
</td>
                <td><A href="<?php 
            echo U('Home/Article/detail?id=' . $vo['goodid']);
            ?>
" > <img src="<?php 
            echo get_cover(get_cover_id($vo["goodid"]), 'path');
            ?>
"  width="40" height="40"/><?php 
            echo get_good_name($vo["goodid"]);
            ?>
</A></td>
               <td align="center"> <span class="weight"><?php 
            echo get_weight($vo["goodid"]);
            ?>
</span>g</td>
                <td align="center"><?php 
            echo get_good_price($vo["goodid"]);
            ?>
</td>
                 <td align="center"><?php 
            echo $vo["num"];
?>
&amp;pic=<?php 
echo C('DOMAIN');
echo get_cover($info["cover_id"], 'path');
?>
" data-item="sina" class="J_vivo_share">
            <img alt="新浪微博" src="/b2c/Public/Home/images/icon_sina_weibo.jpg" app="b2c">        </a>                                                                
        <a title="分享到腾讯微博" target="_blank" href="http://v.t.qq.com/share/share.php?title=<?php 
echo $info["title"];
?>
(来自<?php 
echo C('SITENAME');
?>
)。&amp;url=<?php 
echo C('DOMAIN');
echo U('Article/detail?id=' . $info['id']);
?>
&amp;pic=<?php 
echo C('DOMAIN');
echo get_cover($info["cover_id"], 'path');
?>
" data-item="tencent" class="J_vivo_share">
            <img alt="腾讯微博" src="/b2c/Public/Home/images/icon_tencent_weibo.jpg" app="b2c">        </a>                                                                
        <a target="_blank" title="分享到人人网" href="http://widget.renren.com/dialog/share?resourceUrl=<?php 
echo C('DOMAIN');
echo U('Article/detail?id=' . $info['id']);
?>
;srcUrl=<?php 
echo C('DOMAIN');
?>
&amp;title=<?php 
                echo get_nav_url($nav["url"]);
                ?>
" target="<?php 
                if ($nav["target"] == "1") {
                    ?>
_blank<?php 
                } else {
                    ?>
_self<?php 
                }
                ?>
"><?php 
                echo $nav["title"];
                ?>
</a>
                      </li><?php 
            }
        }
    }
} else {
    echo "";
}
?>
    </ul>
    
  </div>
	<!-- /菜单 -->


	<!-- 主体 -->
	<div  class="commom_wrapper">
 /**
  * 添加商品  添加商品     未用到
  * param int $id 商品主键
  * int $num 购物数量
  */
 public function addgood($id)
 {
     $tag = $_POST['tag'];
     $num = 1;
     $id = $_POST['id'];
     $price = get_good_price($id);
     if (!isset($_SESSION['cart'])) {
         $_SESSION['cart'] = array();
     }
     $item = array();
     //如果该商品已存在则直接加其数量
     if (isset($_SESSION['cart'][$id])) {
         $_SESSION['cart'][$id]['num'] += $num;
         $item['id'] = $id;
         $item['price'] = $price;
         $item['num'] = $_SESSION['cart'][$id]['num'];
         $_SESSION['cart'][$id] = $item;
         $exsit = "1";
     } else {
         $item['id'] = $id;
         $item['price'] = $price;
         $item['num'] = $num;
         $_SESSION['cart'][$id] = $item;
         $exsit = "0";
     }
     $data['status'] = 1;
     $data['price'] = get_good_price($id);
     $coverid = get_cover_id($id);
     $data['src'] = get_good_img($coverid);
     $data['title'] = get_good_name($id);
     $data['exsit'] = $exsit;
     $data['num'] = $item['num'];
     $data['msg'] = '添加成功';
     $this->ajaxReturn($data);
 }