diff --git a/app/admin/controller/Category.php b/app/admin/controller/Category.php
index 6ee270a..e1485df 100644
--- a/app/admin/controller/Category.php
+++ b/app/admin/controller/Category.php
@@ -126,13 +126,10 @@ class Category extends Common
   public function update(Request $request, $id)
   {
     //
-
-    
     $post_data = $request->post();
 
     $model_category = ModelCategory::where('title',$post_data['title'])
     ->where('pid',$post_data['pid'])
-    ->where('type',$post_data['type'])
     ->where('id','<>',$id)
     ->find();
 
diff --git a/app/admin/controller/Post.php b/app/admin/controller/Post.php
index 872fa02..95aa3b8 100644
--- a/app/admin/controller/Post.php
+++ b/app/admin/controller/Post.php
@@ -19,7 +19,8 @@ class Post extends Common
   {
     parent::initialize();
 
-    ModelPost::quickSelect(true);
+    $list_post = ModelPost::quickSelect(true);
+
   }
 
   /**
@@ -118,7 +119,9 @@ class Post extends Common
     //
 
     $model_post = ModelPost::find($id);
+    $list_category = Category::where('status', 1)->order('sort asc')->select();
 
+    View::assign('list_category', $list_category);
 
     View::assign('post', $model_post);
 
diff --git a/app/index/controller/Index.php b/app/index/controller/Index.php
index 5f1b87e..1154268 100644
--- a/app/index/controller/Index.php
+++ b/app/index/controller/Index.php
@@ -16,14 +16,14 @@ class Index extends Common
    *
    * @return \think\Response
    */
-  public function index($post_id = 0)
+  public function index($post_id = 0,$category_id = 0)
   {
-    $list_post = Post::quickSelect();
 
+    $list_post = Post::quickSelect();
     if (empty($post_id)) {
-      $model_post = $list_post->first();
+      $model_post = $list_post->first()->post->first();
     } else {
-      $model_post = $list_post->where('id', $post_id)->first();
+      $model_post = $list_post->where('id',$category_id)->column('post')[0]->where('id', $post_id)->first();
     }
 
     View::assign('model_post', $model_post);
diff --git a/app/index/route/app.php b/app/index/route/app.php
index fe110e1..0a858b3 100644
--- a/app/index/route/app.php
+++ b/app/index/route/app.php
@@ -2,4 +2,4 @@
 
 use think\facade\Route;
 
-Route::rule('doc/[:post_id]','Index/index');
\ No newline at end of file
+Route::rule('doc/[:category_id]/[:post_id]','Index/index');
\ No newline at end of file
diff --git a/app/model/Category.php b/app/model/Category.php
index 8ef5cb3..5cc26bc 100644
--- a/app/model/Category.php
+++ b/app/model/Category.php
@@ -17,26 +17,32 @@ class Category extends Model
   public static $allCategory = [];
 
 
+
+  public function post()
+  {
+    return $this->hasMany(Post::class, 'category_id');
+  }
+
   /**
    * 获取指定id下的所有分类
    *
    * @param string $id
    * @return void
    */
-  public static function getListLevel($id = '',$type = 1)
+  public static function getListLevel($id = '', $type = 1)
   {
 
-    if(empty(self::$allCategory)){
+    if (empty(self::$allCategory)) {
 
-      $model_list = Category::where('type',$type)->order('sort asc')->select();
-      self::$allCategory = array2level($model_list,0,0);
+      $model_list = Category::where('type', $type)->order('sort asc')->select();
+      self::$allCategory = array2level($model_list, 0, 0);
     }
 
-    if(!empty($id)){
+    if (!empty($id)) {
       $list = [];
       $in_category = [$id];
       foreach (self::$allCategory as $category) {
-        if(in_array($category->pid,$in_category)){
+        if (in_array($category->pid, $in_category)) {
           $list[] = $category;
           $in_category[] = $category->id;
         }
@@ -51,13 +57,13 @@ class Category extends Model
 
   public function getTitleImgAttr($value)
   {
-    
+
     return get_source_link($value);
   }
 
   public function posts()
   {
-    return $this->hasMany(PostCategory::class,'category_id');
+    return $this->hasMany(PostCategory::class, 'category_id');
   }
 
   /**
@@ -72,7 +78,7 @@ class Category extends Model
     $list_post = [];
 
     foreach ($list_post_category as $list_post_category) {
-      array_push($list_post,$list_post_category->post);
+      array_push($list_post, $list_post_category->post);
     }
 
     return $list_post;
@@ -86,34 +92,34 @@ class Category extends Model
   public function getPostsListAttr()
   {
     $list_post_category = $this->getAttr('posts');
-    
-    $list_post = array_column($list_post_category->append(['post'])->toArray(),'post');
+
+    $list_post = array_column($list_post_category->append(['post'])->toArray(), 'post');
 
     return $list_post;
   }
 
   public function getTplNameAttr($value)
   {
-    return Config::get('view_type.category.'.$value);
+    return Config::get('view_type.category.' . $value);
   }
 
   public function getModelParentAttr()
   {
     $pid = $this->getData('pid');
 
-    if($pid == 0){
+    if ($pid == 0) {
       return $this;
     }
-    return Category::where('id',$pid)->find();
+    return Category::where('id', $pid)->find();
   }
 
   // 返回除自身以外的其他的同级同类的分类
   public function getModelSiblingsAttr()
   {
-    return Category::where('pid',$this->getData('pid'))
-    ->where('level',$this->getData('level'))
-    ->where('id','<>',$this->getData('id'))
-    ->select();
+    return Category::where('pid', $this->getData('pid'))
+      ->where('level', $this->getData('level'))
+      ->where('id', '<>', $this->getData('id'))
+      ->select();
   }
 
   /**
@@ -123,9 +129,8 @@ class Category extends Model
    */
   public function getModelSameParentAttr()
   {
-    return Category::where('pid',$this->getData('pid'))
-    ->where('level',$this->getData('level'))
-    ->select();
+    return Category::where('pid', $this->getData('pid'))
+      ->where('level', $this->getData('level'))
+      ->select();
   }
-
 }
diff --git a/app/model/Post.php b/app/model/Post.php
index 7348d08..2ffa7ed 100644
--- a/app/model/Post.php
+++ b/app/model/Post.php
@@ -25,6 +25,11 @@ class Post extends Model
 
   protected $defaultSoftDelete = 0;
 
+  public function category()
+  {
+    return $this->belongsTo(Category::class, 'category_id');
+  }
+
   public function categorys()
   {
     return $this->hasMany(PostCategory::class, 'post_id');
@@ -162,11 +167,15 @@ class Post extends Model
     $list_post = Cache::get($cacke_key);
 
     if (empty($list_post) || $clear) {
-      $list_post = Post::where('status', 1)->order('sort desc')->select();
-      Cache::set($cacke_key, $list_post,600);
+
+      $list_post = Category::with(['post'])->where('type', 'default')
+        ->where('status', 1)
+        ->order('sort asc')
+        ->select();
+
+      Cache::set($cacke_key, $list_post, 600);
     }
 
     return $list_post;
   }
-
 }
diff --git a/public/cdn/layui-ul.css b/public/cdn/layui-ul.css
index 726959e..9f03d0b 100644
--- a/public/cdn/layui-ul.css
+++ b/public/cdn/layui-ul.css
@@ -3,6 +3,12 @@
   border-right: 1px solid #bbb;
 }
 
+.ul-nav-tree-group-title{
+  font-size: 16px;
+  font-weight: 600;
+  line-height: 2;
+}
+
 .ul-nav-tree-item {
   display    : flex;
   align-items: baseline;
diff --git a/view/admin/post/create.html b/view/admin/post/create.html
index 59babb2..5875e7e 100644
--- a/view/admin/post/create.html
+++ b/view/admin/post/create.html
@@ -143,9 +143,11 @@
                       <div class="layui-form-label">分类</div>
                       <div class="layui-input-block">
                         <select name="category_id" lay-verify="">
-                          <option value="0">请选择一个城市</option>
-
-                        </select>     
+                          <option value="0">请选择一个分类</option>
+                          {volist name='list_category' id='vo'}
+                          <option value="{$vo.id}">{$vo.title}</option>
+                          {/volist}
+                        </select>
                       </div>
                     </div>
                     <div class="layui-form-item">
@@ -154,9 +156,9 @@
                         <input type="text" name="jump_to_url" class="layui-input">
                       </div>
                     </div>
-                    
-                    
-                    
+
+
+
                     <div class="layui-form-item">
                       <div class="layui-form-label">跳转链接状态</div>
                       <div class="layui-input-block">
diff --git a/view/admin/post/edit.html b/view/admin/post/edit.html
index 67e37b1..7514da4 100644
--- a/view/admin/post/edit.html
+++ b/view/admin/post/edit.html
@@ -140,7 +140,17 @@
                         <input type="radio" name="status" value="0" title="不发布">
                       </div>
                     </div>
-
+                    <div class="layui-form-item">
+                      <div class="layui-form-label">分类</div>
+                      <div class="layui-input-block">
+                        <select name="category_id" lay-verify="">
+                          <option value="0">请选择一个分类</option>
+                          {volist name='list_category' id='vo'}
+                          <option value="{$vo.id}">{$vo.title}</option>
+                          {/volist}
+                        </select>
+                      </div>
+                    </div>
                     <div class="layui-form-item">
                       <div class="layui-form-label">跳转链接</div>
                       <div class="layui-input-block">
@@ -315,6 +325,7 @@
         is_top: '{$post->getData("is_top")}',
         jump_to_url_status: '{$post->getData("jump_to_url_status")}',
         tpl_name: '{$post->getData("tpl_name")}',
+        category_id: '{$post->getData("category_id")}',
       })
 
       form.on('submit(save)', function (data) {
diff --git a/view/admin/post/index.html b/view/admin/post/index.html
index bc40b10..c4f0147 100644
--- a/view/admin/post/index.html
+++ b/view/admin/post/index.html
@@ -40,9 +40,9 @@
             <thead>
               <tr>
                 <th>ID</th>
-                <th >名称</th>
+                <th>名称</th>
                 <th>封面</th>
-                <th >简介</th>
+                <th>简介</th>
                 <th>排序</th>
                 <th>状态</th>
                 <th>分类</th>
@@ -62,9 +62,7 @@
                 <td>{$vo.sort}</td>
                 <td>{$vo.status_name}</td>
                 <td>
-                  {volist name='vo.categorys_list' id='category'}
-                    <p>{:str_repeat('|--',$category.level)}{$category.title}</p>
-                  {/volist}
+                  {$vo.category.title|default="未分类"}
                 </td>
                 <td>
                   {volist name='vo.tags_list' id='tag'}
diff --git a/view/index/index/index.html b/view/index/index/index.html
index db40e28..8ff586e 100644
--- a/view/index/index/index.html
+++ b/view/index/index/index.html
@@ -30,15 +30,25 @@
     <div class="layui-row layui-col-space6 " style="margin-top: 15px;">
       <div class="layui-col-md3">
         <div class="ul-nav-tree ul-padding-md">
-          {volist name='list_post' id='post'}
-          <a href="{:url('Index/index',['post_id'=>$post.id])}" class="ul-nav-tree-item">
-            <div class="ul-nav-tree-item-title">
-              {$post.title}
+
+          {volist name='list_post' id='category'}
+          <div class="ul-nav-tree-group">
+            <div class="ul-nav-tree-group-title">
+              {$category.title}
             </div>
-            <div class="ul-nav-tree-item-desc">
-              {$post.desc}
+            <div class="ul-nav-tree-group-main">
+              {volist name='category.post' id='post'}
+              <a href="{:url('Index/index',['post_id'=>$post.id,'category_id'=>$post.category_id])}" class="ul-nav-tree-item">
+                <div class="ul-nav-tree-item-title">
+                  {$post.title}
+                </div>
+                <div class="ul-nav-tree-item-desc">
+                  {$post.desc}
+                </div>
+              </a>
+              {/volist}
             </div>
-          </a>
+          </div>
           {/volist}
 
         </div>