diff --git a/app/admin/controller/Admin.php b/app/admin/controller/Admin.php
index f60e53b..3d7e2f9 100644
--- a/app/admin/controller/Admin.php
+++ b/app/admin/controller/Admin.php
@@ -17,6 +17,7 @@ use think\facade\Db;
 use think\facade\Session;
 use think\exception\ValidateException;
 use app\common\model\User as UserModel;
+use taoler\com\Files;
 
 class Admin extends AdminController
 {
@@ -188,4 +189,18 @@ class Admin extends AdminController
 		View::assign('admin',$admin);
 		return View::fetch('set/user/repass');
     }
+	
+	//清除缓存Cache
+	public function clearCache(){
+        $atemp = app()->getRootPath().'runtime/admin/temp/';
+		$itemp = app()->getRootPath().'runtime/index/temp/';
+        $cache = app()->getRootPath().'runtime/cache/';
+		Files::delDirAndFile($atemp);
+		Files::delDirAndFile($itemp);
+        if(is_dir($cache) && Files::delDirAndFile($cache)){
+           return json(['code'=>0,'msg'=>'清除缓存成功']);
+        } else {
+			return json(['code'=>-1,'msg'=>'清除缓存失败']);
+		} 
+    }
 }
\ No newline at end of file
diff --git a/app/common.php b/app/common.php
index 41ad68b..bb63e4f 100644
--- a/app/common.php
+++ b/app/common.php
@@ -4,6 +4,7 @@ use PHPMailer\PHPMailer\PHPMailer;
 use PHPMailer\PHPMailer\Exception;
 use think\facade\Request;
 use think\facade\Db;
+use think\facade\Cache;
 use think\facade\Session;
 use taoser\think\Auth;
 // 应用公共文件
@@ -75,7 +76,13 @@ if(!function_exists('getUserImg'))
 //根据文章分类ID查询分类名
 function getCateName($cate_ename)
     {
-       return Db::name('cate')->where('ename',$cate_ename)->value('catename');
+		$cname = Cache::get('cname');
+		if(!$cname){
+			$cname = Db::name('cate')->where('ename',$cate_ename)->value('catename');
+			Cache::set('cname',$cname,3600);
+		}
+		return $cname;
+      // return Db::name('cate')->where('ename',$cate_ename)->value('catename');
     }
 
 
diff --git a/app/common/controller/AdminController.php b/app/common/controller/AdminController.php
index 8d47113..b82ee09 100644
--- a/app/common/controller/AdminController.php
+++ b/app/common/controller/AdminController.php
@@ -14,6 +14,7 @@ use think\facade\Cache;
 use think\facade\View;
 use think\facade\Db;
 use taoser\think\Auth;
+use taoler\com\Files;
 
 /**
  * 控制器基础类
@@ -234,5 +235,16 @@ abstract class AdminController
 		}
 	  }
 	}
+	//清除缓存Cache
+	public function clearData(){
+        $dir = app()->getRootPath().'runtime/admin/temp';
+        $cache = app()->getRootPath().'runtime/cache';
+        if(is_dir($cache)){
+            Files::delDirs($cache);
+        }
+        if(Files::delDirs($dir) ){
+            return json(['code'=>0,'msg'=>'清除成功']);
+        }
+    }
 
 }
\ No newline at end of file
diff --git a/app/common/controller/BaseController.php b/app/common/controller/BaseController.php
index 7a7afa1..255a329 100644
--- a/app/common/controller/BaseController.php
+++ b/app/common/controller/BaseController.php
@@ -226,7 +226,7 @@ abstract class BaseController
     protected function showNav()
     {
         //1.查询分类表获取所有分类
-		$cateList = Db::name('cate')->where(['status'=>1,'delete_time'=>0])->order('sort','asc')->select();
+		$cateList = Db::name('cate')->where(['status'=>1,'delete_time'=>0])->order('sort','asc')->cache(120)->select();
 		
         //2.将catelist变量赋给模板 公共模板nav.html
         View::assign('cateList',$cateList);
@@ -236,13 +236,10 @@ abstract class BaseController
 	//显示用户
     protected function showUser()
     {
-		$user['user_id'] = Session::get('user_id');
         //1.查询用户
-		$user = Db::name('user')->field('id,name,nickname,user_img,sex,auth,city,email,sign,point')->where('id',$user['user_id'])->find();
-	
-        //2.将User变量赋给模板 公共模板nav.html
-        View::assign('user',$user);
-
+		$user = Db::name('user')->field('id,name,nickname,user_img,sex,auth,city,email,sign,point')->where('id',Session::get('user_id'))->cache(120)->find();
+		//2.将User变量赋给模板 公共模板nav.html
+		View::assign('user',$user);
     }
 	
 	 //显示网站设置
diff --git a/app/index/controller/Index.php b/app/index/controller/Index.php
index dfd7650..4a72708 100644
--- a/app/index/controller/Index.php
+++ b/app/index/controller/Index.php
@@ -5,6 +5,7 @@ use app\common\controller\BaseController;
 use think\facade\View;
 use think\facade\Request;
 use think\facade\Db;
+use think\facade\Cache;
 use app\common\model\Article;
 use app\common\model\User;
 use app\common\model\Cate;
@@ -17,39 +18,63 @@ class Index extends BaseController
     {
 		$types = input('type');
 		//幻灯
-		$sliders = Db::name('slider')->where('slid_status',1)->where('delete_time',0)->where('slid_type',1)->whereTime('slid_over','>=',time())->select();
-	
+		$sliders = Cache::get('slider');
+		if(!$sliders){
+			$sliders = Db::name('slider')->where('slid_status',1)->where('delete_time',0)->where('slid_type',1)->whereTime('slid_over','>=',time())->select();
+			Cache::set('slider',$sliders,3600);
+		}
+		
 		//置顶文章
-		$artTop = Article::field('id,title,cate_id,user_id,create_time,is_top')->where(['is_top'=>1,'status'=>1,'delete_time'=>0])->with([
+		$artTop = Cache::get('arttop');
+		if(!$artTop){
+			$artTop = Article::field('id,title,cate_id,user_id,create_time,is_top')->where(['is_top'=>1,'status'=>1,'delete_time'=>0])->with([
             'cate' => function($query){
 				$query->where('delete_time',0)->field('id,catename');
             },
 			'user' => function($query){
 				$query->field('id,name,nickname,user_img,area_id');
 			}
-        ])->withCount(['comments'])->order('create_time','desc')->limit(5)->withCache(30)->select();
-	
-		//首页文章显示15条
-		$artList = Article::field('id,title,cate_id,user_id,create_time,is_hot')->with([
+			])->withCount(['comments'])->order('create_time','desc')->limit(5)->select();
+			Cache::set('arttop',$artTop,60);
+		}
+		
+		//首页文章显示20条
+		$artList = Cache::get('artlist');
+		if(!$artList){
+			$artList = Article::field('id,title,cate_id,user_id,create_time,is_hot')->with([
             'cate' => function($query){
 				$query->where('delete_time',0)->field('id,catename');
             },
 			'user' => function($query){
 				$query->field('id,name,nickname,user_img,area_id');
 			}
-        ])->withCount(['comments'])->where(['status'=>1,'delete_time'=>0])->order('create_time','desc')->limit(15)->withCache(30)->select();
-
+			])->withCount(['comments'])->where(['status'=>1,'delete_time'=>0])->order('create_time','desc')->limit(20)->select();
+			Cache::set('artlist',$artList,60);
+		}
+		
 		//热议文章
 		$artHot = Article::field('id,title')->withCount('comments')->where(['status'=>1,'delete_time'=>0])->whereTime('create_time', 'year')->order('comments_count','desc')->limit(10)->select();
-		
+
 		//首页赞助
-		$ad_index = Db::name('slider')->where(['slid_status'=>1,'delete_time'=>0,'slid_type'=>3])->whereTime('slid_over','>=',time())->select();
+		$ad_index = Cache::get('adindex');
+		if(!$ad_index){
+			$ad_index = Db::name('slider')->where(['slid_status'=>1,'delete_time'=>0,'slid_type'=>3])->whereTime('slid_over','>=',time())->select();
+			Cache::set('adindex',$ad_index,3600);
+		}
 		
 		//首页右栏
-		$ad_comm = Db::name('slider')->where(['slid_status'=>1,'delete_time'=>0,'slid_type'=>2])->whereTime('slid_over','>=',time())->select();
+		$ad_comm = Cache::get('adcomm');
+		if(!$ad_comm){
+			$ad_comm = Db::name('slider')->where(['slid_status'=>1,'delete_time'=>0,'slid_type'=>2])->whereTime('slid_over','>=',time())->select();
+			Cache::set('adcomm',$ad_comm,3600);
+		}
 		
 		//友情链接
-		$friend_links = Db::name('slider')->where(['slid_status'=>1,'delete_time'=>0,'slid_type'=>6])->whereTime('slid_over','>=',time())->field('slid_name,slid_href')->select();
+		$friend_links = Cache::get('flinks');
+		if(!$friend_links){
+			$friend_links = Db::name('slider')->where(['slid_status'=>1,'delete_time'=>0,'slid_type'=>6])->whereTime('slid_over','>=',time())->field('slid_name,slid_href')->select();
+			Cache::set('flinks',$friend_links,3600);
+		}
 		
 		$vs = [
 			'slider'	=>	$sliders,
diff --git a/extend/taoler/com/Files.php b/extend/taoler/com/Files.php
new file mode 100644
index 0000000..5f23988
--- /dev/null
+++ b/extend/taoler/com/Files.php
@@ -0,0 +1,281 @@
+<?php
+
+namespace taoler\com;
+use RecursiveIteratorIterator;
+use RecursiveDirectoryIterator;
+class Files
+{
+	//�����ļ��м����ļ���
+	public static function create_dirs($path)
+	{
+	  if (!is_dir($path))
+	  {
+		$directory_path = "";
+		$directories = explode("/",$path);
+		array_pop($directories);
+	   
+		foreach($directories as $directory)
+		{
+		  $directory_path .= $directory."/";
+		  if (!is_dir($directory_path))
+		  {
+			mkdir($directory_path);
+			chmod($directory_path, 0777);
+		  }
+		}
+	  }
+	  return true;
+	}
+	
+	/**
+	 * ɾ���ļ��м����� 
+	 * @param $dirPath ��ɾ����Ŀ¼
+	 * @param $nowDir �Ƿ�ɾ����ǰ�ļ���$dirPath true false
+	 */
+	public static function delDirAndFile( $dirPath, $nowDir=false ) 
+	{ 
+		if ( $handle = opendir($dirPath) ) { 
+
+			while ( false !== ( $item = readdir( $handle ) ) ) { 
+				if ( $item != '.' && $item != '..' ) { 
+					$path = $dirPath.$item;
+					if (is_dir($path)) { 
+						self::delDirAndFile($path.'/'); 
+						rmdir($path.'/');
+					} else { 
+						unlink($path); 
+					} 
+				} 
+			} 
+			closedir( $handle ); 
+			//ɾ����ǰ�ļ���
+			if($nowDir == true){
+				if(rmdir($dirPath)){
+					return true;
+				} else {
+					return false;
+				}
+			}
+		} else {
+			return false;
+		}
+		return true;
+	}
+
+	/**
+	 * �����ļ���$source�µ��ļ������ļ����µ����ݵ�$dest�� ����+���ݴ���
+	 * @param $source
+	 * @param $dest
+	 * @param $ex ָ��ֻ����$source�µ�Ŀ¼,Ĭ��ȫ����
+	 */
+	public function copyDirs($source, $dest, $ex=array())
+	{
+		$count = count($ex);
+		if (!file_exists($dest)) mkdir($dest);
+			if($handle = opendir($source)){
+				while (($file = readdir($handle)) !== false) {
+					if (( $file != '.' ) && ( $file != '..' )) {
+						if ( is_dir($source . $file) ) {
+							//ָ���ļ���
+							if($count != 0){
+								if(in_array($file,$ex)){
+									self::copyDirs($source . $file.'/', $dest . $file.'/');
+								}
+							} else {
+								self::copyDirs($source . $file.'/', $dest . $file.'/');
+							}
+						} else {
+							copy($source. $file, $dest . $file);
+						}
+					}
+				}
+				closedir($handle);
+			} else {
+			return false;
+		}
+		return true;	
+	}
+	
+	
+    /**
+     * ���Ŀ¼��ѭ������Ŀ¼
+     *
+     * @param $catalogue
+     */
+    public static function mkdirs($dir)
+    {
+        if (!file_exists($dir)) {
+            self::mkdirs(dirname($dir));
+            mkdir($dir, 0777);
+        }
+        return true;
+    }
+	
+    /**
+     * @param $dir
+     * @return bool
+     * ɾ���ļ��Լ�Ŀ¼
+     */
+    public static function delDir($dir) {
+        //��ɾ��Ŀ¼�µ��ļ���
+//        var_dump(is_dir($dir));
+//        if(!is_dir($dir)){
+//            return true;
+//        }
+        $dh=opendir($dir);
+        while ($file=readdir($dh)) {
+            if($file!="." && $file!="..") {
+                $fullpath=$dir."/".$file;
+                if(!is_dir($fullpath)) {
+                    unlink($fullpath);
+                } else {
+                    self::delDir($fullpath);
+                }
+            }
+        }
+        closedir($dh);
+        //ɾ����ǰ�ļ��У�
+        if(rmdir($dir)) {
+            return true;
+        } else {
+            return false;
+        }
+    }
+
+    /**
+     * @param $source
+     * @param $dest
+     * �����ļ���ָ���ļ�
+     */
+    public static function copyDir($source, $dest)
+    {
+        if (!is_dir($dest)) {
+            self::mkdirs($dest, 0755, true);
+        }
+        foreach (
+            $iterator = new RecursiveIteratorIterator(
+                new RecursiveDirectoryIterator($source, RecursiveDirectoryIterator::SKIP_DOTS),
+                RecursiveIteratorIterator::SELF_FIRST
+            ) as $item
+        ) {
+            if ($item->isDir()) {
+                $sontDir = $dest . DIRECTORY_SEPARATOR . $iterator->getSubPathName();
+                if (!is_dir($sontDir)) {
+                    self::mkdirs($sontDir, 0755, true);
+                }
+            } else {
+                copy($item, $dest . DIRECTORY_SEPARATOR . $iterator->getSubPathName());
+            }
+        }
+        return true;
+    }
+
+    /*�
+    * @param  string  $type 1 Ϊ���ɿ����� 2 ģ��
+    */
+
+    public static function filePutContents($content,$filepath,$type){
+        if($type==1){
+            $str = file_get_contents($filepath);
+            $parten = '/\s\/\*+start\*+\/(.*)\/\*+end\*+\//iUs';
+            preg_match_all($parten,$str,$all);
+            $ext_content = '';
+            if($all[0]){
+                foreach($all[0] as $key=>$val){
+                    $ext_content .= $val."\n\n";
+                }
+            }
+            $content .= $ext_content."\n\n";
+            $content .="}\n\n";
+        }
+        ob_start();
+        echo $content;
+        $_cache=ob_get_contents();
+        ob_end_clean();
+        if($_cache){
+            $File = new \think\template\driver\File();
+            $File->write($filepath, $_cache);
+        }
+    }
+    /**
+     * ��ȡ�ļ��д�С
+     *
+     * @param string $dir ���ļ���·��
+     * @return int
+     */
+    public static function getDirSize($dir)
+    {
+        if(!is_dir($dir)){
+            return false;
+        }
+        $handle = opendir($dir);
+        $sizeResult = 0;
+        while (false !== ($FolderOrFile = readdir($handle))) {
+            if ($FolderOrFile != "." && $FolderOrFile != "..") {
+                if (is_dir("$dir/$FolderOrFile")) {
+                    $sizeResult += self::getDirSize("$dir/$FolderOrFile");
+                } else {
+                    $sizeResult += filesize("$dir/$FolderOrFile");
+                }
+            }
+        }
+
+        closedir($handle);
+        return $sizeResult;
+    }
+
+    /**
+     * �����ļ�
+     *
+     * @param $files
+     */
+    public static function createFile($file,$content)
+    {
+
+        $myfile = fopen($file, "w") or die("Unable to open file!");
+        fwrite($myfile, $content);
+        fclose($myfile);
+        return true;
+    }
+    /**
+     * �������鴴��Ŀ¼
+     *
+     * @param $files
+     */
+    public static function createDirOrFiles($files)
+    {
+        foreach ($files as $key => $value) {
+            if (substr($value, -1) == '/') {
+                mkdir($value);
+            } else {
+                file_put_contents($value, '');
+            }
+        }
+    }
+
+    // �ж��ļ���Ŀ¼�Ƿ���д��Ȩ��
+    public static function isWritable($file)
+    {
+        if (DIRECTORY_SEPARATOR == '/' AND @ ini_get("safe_mode") == FALSE) {
+            return is_writable($file);
+        }
+        if (!is_file($file) OR ($fp = @fopen($file, "r+")) === FALSE) {
+            return FALSE;
+        }
+        fclose($fp);
+        return TRUE;
+    }
+
+    /**
+     * д����־
+     *
+     * @param $path
+     * @param $content
+     * @return bool|int
+     */
+    public static function writeLog($path, $content)
+    {
+        self::mkdirs(dirname($path));
+        return file_put_contents($path, "\r\n" . $content, FILE_APPEND);
+    }
+}
\ No newline at end of file
diff --git a/public/static/admin/lib/admin.js b/public/static/admin/lib/admin.js
index 8ab78cc..27e9ce3 100644
--- a/public/static/admin/lib/admin.js
+++ b/public/static/admin/lib/admin.js
@@ -450,6 +450,33 @@ layui.define('view', function(exports){
         iconElem.addClass(SCREEN_FULL).removeClass(SCREEN_REST);
       }
     }
+	
+	//清除缓存
+    ,clearcache: function(){
+		loading = layer.load(2, {
+                shade: [0.2, '#000']
+            });
+      admin.req({
+	   type: "post"
+      ,url: '/admin/Admin/clearCache'
+      ,success: function(data){
+		  if (data.code == 0) {
+			layer.close(loading);
+				layer.msg(data.msg,{
+					icon:6,
+					time:2000
+				});
+			} else {
+				layer.close(loading);
+				layer.open({
+					content:data.msg,
+					icon:5,
+					anim:6
+				});
+			}
+		}
+		});
+    }
 
     //弹出关于面板
     ,about: function(){
diff --git a/view/admin/public/header.html b/view/admin/public/header.html
index abb3863..09ae347 100644
--- a/view/admin/public/header.html
+++ b/view/admin/public/header.html
@@ -46,7 +46,7 @@
             </a>
           </li>
 		  <li class="layui-nav-item layui-hide-xs" lay-unselect>
-            <a href="javascript:;" layadmin-event="#">
+            <a href="javascript:;" layadmin-event="clearcache">
               <i class="layui-icon layui-icon-refresh"></i>
             </a>
           </li>
diff --git a/view/index/index/index.html b/view/index/index/index.html
index 3cdffa4..5e59648 100644
--- a/view/index/index/index.html
+++ b/view/index/index/index.html
@@ -1,7 +1,6 @@
-
 {extend name="public:base" /}
 
-{block name="title"}{$sysInfo.webname} - {$sysInfo.webtitle}{/block}
+{block name="title"}{$sysInfo.webname}-{$sysInfo.webtitle}{/block}
 {block name="keywords"}{$sysInfo.keywords}{/block}
 {block name="description"} {$sysInfo.descript}{/block}
 {block name="column"}{include file="public/column" /}{/block}
@@ -71,7 +70,7 @@
 		{volist name="artList" id="art" empty="还没有帖子"}
           <li>
             <a href="{:url('user/home',['id'=>$art.user_id])}" class="fly-avatar">
-              <img src="{$art.user_id|getUserImg}" alt="{$art.user.name}">  
+              <img src="{$art.user.user_img}" alt="{$art.user.name}">  
             </a>
             <h2>
               <a class="layui-badge">{$art.cate.catename}</a>
@@ -338,8 +337,8 @@
     layui.cache.page = 'index';
     layui.cache.user = {
         username: '{$user.name??'游客'}'
-        ,uid: {$user.id ? 168*$user.id : -1}
-        ,avatar: '{if condition="$user['user_img'] neq ''"}{$user['user_img']}{else /}/static/res/images/avatar/00.jpg{/if}'
+        ,uid: {$user.id ? $user.id : -1}
+        ,avatar: '{$user.name? $user['user_img']:'/static/res/images/avatar/00.jpg'}'
         ,experience: 83
         ,sex: '{if condition="$user['sex'] eq 0"}男{else/}女{/if}'
     };