增加记忆跳转

helper.php

@@ -426,7 +426,7 @@ function xml($data = [], $code = 200, $options = [])
  * @param array $params 额外参数
  * @return \think\response\Redirect
  */
-function redirect($url = [], $code = 200, $params = [])
+function redirect($url = [], $code = 302, $params = [])
 {
     return Response::create($url, 'redirect')->code($code)->params($params);
 }

library/think/Session.php

@@ -206,7 +206,6 @@ class Session
      * @param string $name session名称
      * @param string|null $prefix
      * @return bool
-     * @internal param mixed $value session值
      */
     public static function has($name, $prefix = null)
     {

library/think/response/Redirect.php

@@ -11,7 +11,9 @@
 
 namespace think\response;
 
+use think\Request;
 use think\Response;
+use think\Session;
 use think\Url;
 
 class Redirect extends Response
@@ -30,10 +32,9 @@ class Redirect extends Response
      */
     protected function output($data)
     {
-        $this->isExit                  = true;
         $url                           = preg_match('/^(https?:|\/)/', $data) ? $data : Url::build($data, $this->params);
         $this->header['Location']      = $url;
-        $this->header['status']        = isset($this->header['status']) ? $this->header['status'] : 301;
+        $this->header['status']        = isset($this->header['status']) ? $this->header['status'] : 302;
         $this->header['Cache-control'] = 'no-cache,must-revalidate';
         return;
     }
@@ -43,4 +44,23 @@ class Redirect extends Response
         $this->params = $params;
         return $this;
     }
+
+    /**
+     * 记住当前url后跳转
+     */
+    public function remember()
+    {
+        Session::set('redirect_url', Request::instance()->url());
+    }
+
+    /**
+     * 跳转到上次记住的url
+     */
+    public function restore()
+    {
+        if (Session::has('redirect_url')) {
+            $this->data = Session::get('redirect_url');
+            Session::delete('redirect_url');
+        }
+    }
 }