diff --git a/library/think/Request.php b/library/think/Request.php
index 80546d89..4d98c1e7 100644
--- a/library/think/Request.php
+++ b/library/think/Request.php
@@ -655,11 +655,12 @@ class Request
      */
     public function get($name = '', $default = null, $filter = null)
     {
+        if (empty($this->get)) {
+            $this->get = $_GET;
+        }
         if (is_array($name)) {
             $this->param      = [];
             return $this->get = array_merge($this->get, $name);
-        } elseif (empty($this->get)) {
-            $this->get = $_GET;
         }
         return $this->input($this->get, $name, $default, $filter);
     }
@@ -674,11 +675,12 @@ class Request
      */
     public function post($name = '', $default = null, $filter = null)
     {
+        if (empty($this->post)) {
+            $this->post = $_POST;
+        }
         if (is_array($name)) {
             $this->param       = [];
             return $this->post = array_merge($this->post, $name);
-        } elseif (empty($this->post)) {
-            $this->post = $_POST;
         }
         return $this->input($this->post, $name, $default, $filter);
     }
@@ -693,10 +695,6 @@ class Request
      */
     public function put($name = '', $default = null, $filter = null)
     {
-        if (is_array($name)) {
-            $this->param      = [];
-            return $this->put = is_null($this->put) ? $name : array_merge($this->put, $name);
-        }
         if (is_null($this->put)) {
             $content = file_get_contents('php://input');
             if (strpos($content, '":')) {
@@ -705,6 +703,11 @@ class Request
                 parse_str($content, $this->put);
             }
         }
+        if (is_array($name)) {
+            $this->param      = [];
+            return $this->put = is_null($this->put) ? $name : array_merge($this->put, $name);
+        }
+
         return $this->input($this->put, $name, $default, $filter);
     }
 
@@ -743,11 +746,12 @@ class Request
      */
     public function request($name = '', $default = null, $filter = null)
     {
+        if (empty($this->request)) {
+            $this->request = $_REQUEST;
+        }
         if (is_array($name)) {
             $this->param          = [];
             return $this->request = array_merge($this->request, $name);
-        } elseif (empty($this->request)) {
-            $this->request = $_REQUEST;
         }
         return $this->input($this->request ?: $_REQUEST, $name, $default, $filter);
     }
@@ -762,10 +766,11 @@ class Request
      */
     public function session($name = '', $default = null, $filter = null)
     {
+        if (empty($this->session)) {
+            $this->session = Session::get();
+        }
         if (is_array($name)) {
             return $this->session = array_merge($this->session, $name);
-        } elseif (empty($this->session)) {
-            $this->session = Session::get();
         }
         return $this->input($this->session, $name, $default, $filter);
     }
@@ -780,10 +785,11 @@ class Request
      */
     public function cookie($name = '', $default = null, $filter = null)
     {
+        if (empty($this->cookie)) {
+            $this->cookie = $_COOKIE;
+        }
         if (is_array($name)) {
             return $this->cookie = array_merge($this->cookie, $name);
-        } elseif (empty($this->cookie)) {
-            $this->cookie = $_COOKIE;
         }
         return $this->input($this->cookie, $name, $default, $filter);
     }
@@ -798,10 +804,11 @@ class Request
      */
     public function server($name = '', $default = null, $filter = null)
     {
+        if (empty($this->server)) {
+            $this->server = $_SERVER;
+        }
         if (is_array($name)) {
             return $this->server = array_merge($this->server, $name);
-        } elseif (empty($this->server)) {
-            $this->server = $_SERVER;
         }
         return $this->input($this->server, false === $name ? false : strtoupper($name), $default, $filter);
     }
@@ -814,10 +821,11 @@ class Request
      */
     public function file($name = '')
     {
+        if (empty($this->file)) {
+            $this->file = isset($_FILES) ? $_FILES : [];
+        }
         if (is_array($name)) {
             return $this->file = array_merge($this->file, $name);
-        } elseif (empty($this->file)) {
-            $this->file = isset($_FILES) ? $_FILES : [];
         }
         $files = $this->file;
         if (!empty($files)) {
@@ -874,10 +882,11 @@ class Request
      */
     public function env($name = '', $default = null, $filter = null)
     {
+        if (empty($this->env)) {
+            $this->env = $_ENV;
+        }
         if (is_array($name)) {
             return $this->env = array_merge($this->env, $name);
-        } elseif (empty($this->env)) {
-            $this->env = $_ENV;
         }
         return $this->input($this->env, false === $name ? false : strtoupper($name), $default, $filter);
     }
@@ -891,9 +900,7 @@ class Request
      */
     public function header($name = '', $default = null)
     {
-        if (is_array($name)) {
-            return $this->header = array_merge($this->header, $name);
-        } elseif (empty($this->header)) {
+        if (empty($this->header)) {
             $header = [];
             $server = $this->server ?: $_SERVER;
             foreach ($server as $key => $val) {
@@ -910,6 +917,9 @@ class Request
             }
             $this->header = array_change_key_case($header);
         }
+        if (is_array($name)) {
+            return $this->header = array_merge($this->header, $name);
+        }
         if ('' === $name) {
             return $this->header;
         }