diff --git a/compile.php b/compile/result.php
similarity index 100%
rename from compile.php
rename to compile/result.php
diff --git a/engine/Engine.php b/engine/Engine.php
index b8e4693..3186a1c 100644
--- a/engine/Engine.php
+++ b/engine/Engine.php
@@ -71,10 +71,9 @@ class Engine
 
     /**
      * 处理模板继承
-     * @param $template
-     * @return mixed
+     * @param &$template
      */
-    private function parseExtend($template)
+    private function parseExtend(&$template)
     {
         $pattern = '/' . $this->left . 'extend\s+file[\s\S]*?=[\s\S]*?[\'"](.*?)[\'"][\s\S]*?\/' . $this->right . '/is';
         preg_match($pattern, $template, $matches);
@@ -88,8 +87,7 @@ class Engine
                 $extendFileContent = file_get_contents($file);
             }
             // 处理继承中的include标签
-            $tempContent = $this->parseInclude($extendFileContent);
-            $extendFileContent = $tempContent !== false ? $tempContent : $extendFileContent;
+            $this->parseInclude($extendFileContent);
             // 被继承模板中的块
             preg_match_all($blockPattern, $extendFileContent, $extendResult);
             // 继承模板中的块
@@ -119,15 +117,13 @@ class Engine
             }
             $template = str_replace($searchArray, $replaceArray, $extendFileContent);
         }
-        return $template;
     }
 
     /**
      * 处理include标签
-     * @param $template
-     * @return null|string|string[]
+     * @param &$template
      */
-    private function parseInclude($template)
+    private function parseInclude(&$template)
     {
         $pattern = '/' . $this->left . 'include\s+file[\s\S]*?=[\s\S]*?[\'"](.*?)[\'"][\s\S]*?\/' . $this->right . '/is';
         $template = preg_replace_callback($pattern, function ($result) {
@@ -140,9 +136,8 @@ class Engine
         }, $template);
         // 处理多层include
         if ($this->hasInclude($template)) {
-            $template = $this->parseInclude($template);
+            $this->parseInclude($template);
         }
-        return $template;
     }
 
     /**
@@ -159,10 +154,9 @@ class Engine
 
     /**
      * 分析参数以及函数输出
-     * @param $template
-     * @return mixed
+     * @param &$template
      */
-    private function parseVars($template)
+    private function parseVars(&$template)
     {
         preg_match_all('/{(.*?)}/', $template, $matches);
         $search = [];
@@ -188,8 +182,6 @@ class Engine
         if (!empty($search) && !empty($replace)) {
             $template = str_replace($search, $replace, $template);
         }
-
-        return $template;
     }
 
     /**
@@ -303,10 +295,9 @@ class Engine
 
     /**
      * 进行标签处理
-     * @param $template
-     * @return null|string|string[]
+     * @param &$template
      */
-    private function parseTags($template)
+    private function parseTags(&$template)
     {
         foreach ($this->getTags() as $name => $item) {
             $pattern = '/' . $this->left . '(?:(' . $name . ')\b(?>[^' . $this->right . ']*)|\/(' . $name . '))';
@@ -382,7 +373,6 @@ class Engine
                 }, $template);
             }
         }
-        return $template;
     }
 
     /**
@@ -409,14 +399,13 @@ class Engine
 
     /**
      * 处理original标签
-     * @param $template
-     * @return null|string|string[]
+     * @param &$template
      */
-    private function parseOriginal($template)
+    private function parseOriginal(&$template)
     {
-        $pattern = '/' . $this->left . 'original' . $this->right . '([\s\S]*?)';
-        $pattern .= $this->left . '\/original' . $this->right . '/is';
-        return preg_replace_callback($pattern, function ($matches) {
+        $pattern  = '/' . $this->left . 'original' . $this->right . '([\s\S]*?)';
+        $pattern  .= $this->left . '\/original' . $this->right . '/is';
+        $template = preg_replace_callback($pattern, function ($matches) {
             return str_replace([
                 $this->left, $this->right,
                 '{', '}'
@@ -429,12 +418,11 @@ class Engine
 
     /**
      * 还原original内容
-     * @param $template
-     * @return mixed
+     * @param &$template
      */
-    private function returnOriginal($template)
+    private function returnOriginal(&$template)
     {
-        return str_replace([
+        $template = str_replace([
             '<!ORIGINAL--', '--ORIGINAL>',
             '<!PARAM--', '--PARAM>'
         ], [
@@ -451,17 +439,17 @@ class Engine
     public function compile($template)
     {
         // 处理original标签
-        $template = $this->parseOriginal($template);
+        $this->parseOriginal($template);
         // 处理模板继承标签
-        $template = $this->parseExtend($template);
+        $this->parseExtend($template);
         // 处理include标签
-        $template = $this->parseInclude($template);
+        $this->parseInclude($template);
         // 处理定义的标签
-        $template = $this->parseTags($template);
+        $this->parseTags($template);
         // 处理变量以及函数
-        $template = $this->parseVars($template);
+        $this->parseVars($template);
         // 还原original内容
-        $template = $this->returnOriginal($template);
+        $this->returnOriginal($template);
         // 清除多余开始结束标签
         $template = preg_replace('/\?>([\r|\n|\s]*?)<\?php/is', '', $template);
 
diff --git a/script.php b/main.php
similarity index 78%
rename from script.php
rename to main.php
index d71c8b5..2260f99 100644
--- a/script.php
+++ b/main.php
@@ -10,7 +10,7 @@ $t1 = microtime(true);
 // 获取模板引擎实例
 $config = [
     'ext' => 'html',
-    'dir' => './view/',
+    'dir' => './templates/',
     'left' => '<',
     'right' => '>',
 ];
@@ -18,10 +18,10 @@ $engine = Engine::instance($config);
 // 加载自定义标签库
 $engine->loadTaglib('article', Article::class);
 // 读取模板内容
-$template = file_get_contents('./view/index.html');
+$template = file_get_contents('./templates/index.html');
 // 编译并写入
 $content = $engine->compile($template);
-file_put_contents('compile.php', $content);
+file_put_contents('./compile/result.php', $content);
 
 $t2 = microtime(true);
 
diff --git a/view/base.html b/templates/base.html
similarity index 100%
rename from view/base.html
rename to templates/base.html
diff --git a/view/footer.html b/templates/footer.html
similarity index 100%
rename from view/footer.html
rename to templates/footer.html
diff --git a/view/index.html b/templates/index.html
similarity index 100%
rename from view/index.html
rename to templates/index.html
diff --git a/dot/demo.php b/test_dot.php
similarity index 100%
rename from dot/demo.php
rename to test_dot.php