diff --git a/admin/group.php b/admin/group.php
index d3e62a8..12069d0 100644
--- a/admin/group.php
+++ b/admin/group.php
@@ -1,5 +1,5 @@
-<?php 
-$title='分组管理';
+<?php
+$title = '分组管理';
 include './head.php';
 ?>
  <main class="lyear-layout-content">
@@ -11,12 +11,9 @@ include './head.php';
             <div class="card">
               <div class="card-body">
 <?php
-
-$set=isset($_GET['set'])?$_GET['set']:null;
-
-if($set=='add')
-{
-echo '<h4>新增分组</h4>	
+$set = isset($_GET['set']) ? $_GET['set'] : null;
+if ($set == 'add') {
+    echo '<h4>新增分组</h4>	
 <div class="panel-body"><form action="./group.php?set=add_submit" method="POST">
 <div class="form-group">
 <label>*名称:</label><br>
@@ -35,22 +32,20 @@ echo '<h4>新增分组</h4>
 <br/><a href="./group.php"><<返回分组列表</a>
 </div></div>
 ';
-}
-elseif($set=='edit')
-{
-$id=$_GET['id'];
-$row2 = mysqli_query($con,"select * from lylme_groups where group_id='$id' limit 1");
-$row=mysqli_fetch_assoc($row2);
-echo '<h4>修改分组信息</h4>
+} elseif ($set == 'edit') {
+    $id = $_GET['id'];
+    $row2 = $DB->query("select * from lylme_groups where group_id='$id' limit 1");
+    $row = $DB->fetch($row2);
+    echo '<h4>修改分组信息</h4>
 <div class="panel-body">
-<form action="./group.php?set=edit_submit&id='.$id.'" method="POST">
+<form action="./group.php?set=edit_submit&id=' . $id . '" method="POST">
 <div class="form-group">
 <label>*名称:</label><br>
-<input type="text" class="form-control" name="group_name" value="'.$row['group_name'].'" required>
+<input type="text" class="form-control" name="group_name" value="' . $row['group_name'] . '" required>
 </div>
 <div class="form-group">
 <label>分组图标:</label><br>
-<textarea type="text" class="form-control" name="group_icon">'.$row['group_icon'].'</textarea>
+<textarea type="text" class="form-control" name="group_icon">' . $row['group_icon'] . '</textarea>
 <small class="help-block">方式1：填写图标的<code>URL</code>地址，如<code>/img/logo.png</code>或<code>http://www.xxx.com/img/logo.png</code><br>
 方式2：粘贴图标的<code>SVG</code>代码，<a href="/admin/help.php?doc=icon" target="_blank">查看教程</a><br>方式3：留空使用默认图标</small>
 </div>
@@ -59,151 +54,99 @@ echo '<h4>修改分组信息</h4>
 <input type="submit" class="btn btn-primary btn-block" value="确定修改"></form>
 </div>
 <br/><a href="./group.php"><<返回分组列表</a></div></div>';
-}
-elseif($set=='add_submit')
-{
-$name=$_POST['group_name'];
-$icon=$_POST['group_icon'];
-$group_order = $groupsrows+1;
-if($name==NULL){
-    echo '<script>alert("保存错误,请确保带星号的都不为空！");history.go(-1);</script>';
+} elseif ($set == 'add_submit') {
+    $name = $_POST['group_name'];
+    $icon = $_POST['group_icon'];
+    $group_order = $groupsrows + 1;
+    if ($name == NULL) {
+        echo '<script>alert("保存错误,请确保带星号的都不为空！");history.go(-1);</script>';
+    } else {
+        $sql = "INSERT INTO `lylme_groups` (`group_id`, `group_name`, `group_icon`,`group_order`) VALUES (NULL, '" . $name . "', '" . $icon . "', '" . $group_order . "')";
+        if ($DB->query($sql)) {
+            echo '<script>alert("添加分组 ' . $name . ' 成功！");window.location.href="/admin/group.php";</script>';
+            exit();
+        } else echo '<script>alert("添加分组失败");history.go(-1);</script>';
+        exit();
+    }
+    echo '<script>alert("添加分组失败,名称重复");history.go(-1);</script>';
+} elseif ($set == 'edit_submit') {
+    $id = $_GET['id'];
+    $rows2 = $DB->query("select * from lylme_groups where group_id='$id' limit 1");
+    $rows = $DB->fetch($rows2);
+    if (!$rows) echo '<script>alert("当前记录不存在！");history.go(-1);</script>';
+    $name = $_POST['group_name'];
+    $icon = $_POST['group_icon'];
+    if ($name == NULL) {
+        echo '<script>alert("保存错误,请确保带星号的都不为空！");history.go(-1);</script>';
+    } else {
+        $sql = "UPDATE `lylme_groups` SET `group_name` = '" . $name . "', `group_icon` = '" . $icon . "' WHERE `lylme_groups`.`group_id` = '" . $id . "';";
+        if ($DB->query($sql)) echo '<script>alert("修改分组 ' . $name . ' 成功！");window.location.href="/admin/group.php";</script>';
+        else echo '<script>alert("' . $sql . '修改分组失败");history.go(-1);</script>';
+    }
+} elseif ($set == 'delete') {
+    $id = $_GET['id'];
+    $delsql1 = 'DELETE FROM `lylme_links` WHERE group_id =' . $id;
+    $delsql2 = 'DELETE FROM `lylme_groups` WHERE group_id=' . $id;
+    if ($DB->query($delsql1) && $DB->query($delsql2)) echo '<script>alert("删除成功！");window.location.href="/admin/group.php";</script>';
+    else echo '<script>alert("删除失败！");history.go(-1);</script>';
+} elseif ($set == 'up') {
+    $id = $_GET['id'];
+    $order = $_GET['order'] - 1;
+    $arrid = $_GET['arrid'];
+    if ($order <= 0) {
+        echo '<script>window.location.href="/admin/group.php";</script>';
+        exit();
+    }
+    // while($orderrow > 1){
+    // $order=$order-1;
+    // $sql3 = 'SELECT * FROM `lylme_groups` WHERE `group_order` ='.$order;
+    // $orderrow=mysqli_num_rows(mysqli_query($con,$sql3));
+    // }
+    $sql1 = 'UPDATE `lylme_groups` SET `group_order` = ' . $order . '  WHERE `group_id` = ' . $id;
+    $sql2 = 'UPDATE `lylme_groups` SET `group_order` = ' . $_GET['order'] . '  WHERE `group_id` = ' . $arrid;
+    if ($DB->query($sql1)) echo '<script>window.location.href="/admin/group.php?orderid=' . $id . '";</script>';
+    else echo '<script>alert("上移失败!");history.go(-1);</script>';
+} elseif ($set == 'down') {
+    $id = $_GET['id'];
+    $order = $_GET['order'] + 1;
+    $arrid = $_GET['arrid'];
+    $sql1 = 'UPDATE `lylme_groups` SET `group_order` = ' . $order . '  WHERE `group_id` = ' . $id;
+    $sql2 = 'UPDATE `lylme_groups` SET `group_order` = ' . $order . '  WHERE `group_id` = ' . $arr[$arrid + 1];
+    if ($DB->query($sql1)) echo '<script>window.location.href="/admin/group.php?orderid=' . $id . '";</script>';
+    else echo '<script>alert("下移失败!");history.go(-1);</script>';
 } else {
+    $sql = " 1";
+    $cons = '系统共有 <b>' . $groupsrows . '</b> 个分组<br/><a href="./group.php?set=add" class="btn btn-primary">新建分组</a>';
+    echo '<div class="alert alert-info">';
+    echo $cons;
+    echo '</div>';
+    // echo $css;
     
-$sql="INSERT INTO `lylme_groups` (`group_id`, `group_name`, `group_icon`,`group_order`) VALUES (NULL, '".$name."', '".$icon."', '".$group_order."')";
-
-if(mysqli_query($con,$sql)){
- echo '<script>alert("添加分组 '.$name.' 成功！");window.location.href="/admin/group.php";</script>';
- exit();
-}else
- echo '<script>alert("添加分组失败");history.go(-1);</script>';
-  exit();
-}
-echo '<script>alert("添加分组失败,名称重复");history.go(-1);</script>';
-}
-elseif($set=='edit_submit')
-{
-$id=$_GET['id'];
-$rows2 = mysqli_query($con,"select * from lylme_groups where group_id='$id' limit 1");
-$rows=mysqli_fetch_assoc($rows2);
-if(!$rows)
- echo '<script>alert("当前记录不存在！");history.go(-1);</script>';
-$name=$_POST['group_name'];
-$icon=$_POST['group_icon'];
-if($name==NULL){
-     echo '<script>alert("保存错误,请确保带星号的都不为空！");history.go(-1);</script>';
-} else {
-    
-$sql = "UPDATE `lylme_groups` SET `group_name` = '".$name."', `group_icon` = '".$icon."' WHERE `lylme_groups`.`group_id` = '".$id."';";
-
-if(mysqli_query($con,$sql))
-echo '<script>alert("修改分组 '.$name.' 成功！");window.location.href="/admin/group.php";</script>';
-else
- echo '<script>alert("'.$sql.'修改分组失败");history.go(-1);</script>';
-}
-}
-elseif($set=='delete')
-{
-$id=$_GET['id'];
-$delsql1='DELETE FROM `lylme_links` WHERE group_id ='.$id;
-$delsql2='DELETE FROM `lylme_groups` WHERE group_id='.$id;
-if(mysqli_query($con,$delsql1) && mysqli_query($con,$delsql2))
- echo '<script>alert("删除成功！");window.location.href="/admin/group.php";</script>';
-else
- echo '<script>alert("删除失败！");history.go(-1);</script>';
-}
-
-
-elseif($set=='up')
-{
-$id=$_GET['id'];
-$order=$_GET['order']-1;
-$arrid=$_GET['arrid'];
-if($order <= 0){
- echo '<script>window.location.href="/admin/group.php";</script>';
- exit();
-}
-
-// while($orderrow > 1){
-// $order=$order-1;
-// $sql3 = 'SELECT * FROM `lylme_groups` WHERE `group_order` ='.$order;
-// $orderrow=mysqli_num_rows(mysqli_query($con,$sql3));  
-// }
-
-$sql1 = 'UPDATE `lylme_groups` SET `group_order` = '.$order.'  WHERE `group_id` = '.$id;
-$sql2 = 'UPDATE `lylme_groups` SET `group_order` = '.$_GET['order'].'  WHERE `group_id` = '.$arrid;
-if(mysqli_query($con,$sql1))
-
- echo '<script>window.location.href="/admin/group.php?orderid='.$id.'";</script>';
-else
- echo '<script>alert("上移失败!");history.go(-1);</script>';
-}
-
-elseif($set=='down')
-{
-$id=$_GET['id'];
-$order=$_GET['order']+1;
-$arrid=$_GET['arrid'];
-$sql1 = 'UPDATE `lylme_groups` SET `group_order` = '.$order.'  WHERE `group_id` = '.$id;
-$sql2 = 'UPDATE `lylme_groups` SET `group_order` = '.$order.'  WHERE `group_id` = '.$arr[$arrid+1];
-
-if(mysqli_query($con,$sql1))
- echo '<script>window.location.href="/admin/group.php?orderid='.$id.'";</script>';
-else
- echo '<script>alert("下移失败!");history.go(-1);</script>';
-}
-
-
-else
-{
-
-$sql=" 1";
-$cons='系统共有 <b>'.$groupsrows.'</b> 个分组<br/><a href="./group.php?set=add" class="btn btn-primary">新建分组</a>';
-
-echo '<div class="alert alert-info">';
-echo $cons;
-echo '</div>';
-// echo $css;
-
 ?>
       <div class="table-responsive">
         <table class="table table-striped">
           <thead><tr><th>排序权重</th><th>名称</th><th>排序</th><th>操作</th></tr></thead>
           <tbody>
 <?php
-// $pagesize=30;
-// $pages=intval($groupsrows/$pagesize);
-// if ($groupsrows%$pagesize)
-// {
-//  $pages++;
-//  }
-// if (isset($_GET['page'])){
-// $page=intval($_GET['page']);
-// }
-// else{
-// $page=1;
-// }
-// $offset=$pagesize*($page - 1);
-
-$rs=mysqli_query($con,"SELECT * FROM lylme_groups WHERE{$sql} order by group_order asc");
-$orderid=isset($_GET['orderid'])?$_GET['orderid']:null;
-if($orderid != NULL){echo '<style>#ordertd-'.$orderid.' {background: #d9edf7; !important}</style>';}
-$arr=array();
-$arrid = 0;
-while($res = mysqli_fetch_array($rs)){
-array_push($arr,$res['group_id']);
-
-echo '<tr  id="ordertd-'.$res['group_id'].'"><td><b>'.$res['group_order'].'</b></td><td>'.$res['group_name'].'</td><td>';
-if($arr[0] != $res['group_id']){
- echo '<a href="./group.php?set=up&id='.$res['group_id'].'&order='.$res['group_order'].'&arrid='.$arr[$arrid-1].'" class="btn btn-primary btn-xs">上移</a>&nbsp; ';}
-if(isset($arr[$groupsrows-1]) != $res['group_id']){ 
-echo '<a href="./group.php?set=down&id='.$res['group_id'].'&order='.$res['group_order'].'&arrid='.$arr[$arrid].'" class="btn btn-cyan btn-xs">下移</a>';}
-    
-echo '</td><td>&nbsp;<a href="./group.php?set=edit&id='.$res['group_id'].'" class="btn btn-info btn-xs">编辑</a>&nbsp;<a href="./group.php?set=delete&id='.$res['group_id'].'" class="btn btn-xs btn-danger" onclick="return confirm(\'你确实要删除分组 '.$res['group_name'].' 吗？\n\n注意：该操作组会同时删除分组下的链接\');">删除</a> </td></tr>';
-$arrid = $arrid+1;
-}
-
-
-
+    $rs = $DB->query("SELECT * FROM lylme_groups WHERE{$sql} order by group_order asc");
+    $orderid = isset($_GET['orderid']) ? $_GET['orderid'] : null;
+    if ($orderid != NULL) {
+        echo '<style>#ordertd-' . $orderid . ' {background: #d9edf7; !important}</style>';
+    }
+    $arr = array();
+    $arrid = 0;
+    while ($res = $DB->fetch($rs)) {
+        array_push($arr, $res['group_id']);
+        echo '<tr  id="ordertd-' . $res['group_id'] . '"><td><b>' . $res['group_order'] . '</b></td><td>' . $res['group_name'] . '</td><td>';
+        if ($arr[0] != $res['group_id']) {
+            echo '<a href="./group.php?set=up&id=' . $res['group_id'] . '&order=' . $res['group_order'] . '&arrid=' . $arr[$arrid - 1] . '" class="btn btn-primary btn-xs">上移</a>&nbsp; ';
+        }
+        if (isset($arr[$groupsrows - 1]) != $res['group_id']) {
+            echo '<a href="./group.php?set=down&id=' . $res['group_id'] . '&order=' . $res['group_order'] . '&arrid=' . $arr[$arrid] . '" class="btn btn-cyan btn-xs">下移</a>';
+        }
+        echo '</td><td>&nbsp;<a href="./group.php?set=edit&id=' . $res['group_id'] . '" class="btn btn-info btn-xs">编辑</a>&nbsp;<a href="./group.php?set=delete&id=' . $res['group_id'] . '" class="btn btn-xs btn-danger" onclick="return confirm(\'你确实要删除分组 ' . $res['group_name'] . ' 吗？\n\n注意：该操作组会同时删除分组下的链接\');">删除</a> </td></tr>';
+        $arrid = $arrid + 1;
+    }
 ?>
 
           </tbody>
@@ -219,8 +162,7 @@ $arrid = $arrid+1;
       </div>
       
     </main>
-<?php 
-
+<?php
 }
 include './footer.php';
-?>
\ No newline at end of file
+?>