diff --git a/helper.php b/helper.php
index 8bce6e92..1b8def16 100644
--- a/helper.php
+++ b/helper.php
@@ -523,3 +523,16 @@ if (!function_exists('halt')) {
         throw new \think\exception\HttpResponseException(new Response);
     }
 }
+
+if (!function_exists('token')) {
+    /**
+     * 生成表单令牌
+     * @param string $name 令牌名称
+     * @param mixed  $type 令牌生成方法
+     */
+    function token($name = '__token__', $type = 'md5')
+    {
+        $token = Request::instance()->token($name, $type);
+        return '<input type="hidden" name="' . $name . '" value="' . $token . '" />';
+    }
+}
diff --git a/library/think/Request.php b/library/think/Request.php
index 0d7610fd..4449b97f 100644
--- a/library/think/Request.php
+++ b/library/think/Request.php
@@ -1416,7 +1416,9 @@ class Request
     {
         $type  = is_callable($type) ? $type : 'md5';
         $token = call_user_func($type, $_SERVER['REQUEST_TIME_FLOAT']);
-
+        if ($this->isAjax()) {
+            header($name . ': ' . $token);
+        }
         Session::set($name, $token);
         return $token;
     }