diff --git a/application/api/controller/Auto.php b/application/api/controller/Auto.php
index 5b3dfb7..91e6989 100644
--- a/application/api/controller/Auto.php
+++ b/application/api/controller/Auto.php
@@ -191,6 +191,18 @@ class Auto extends Base
     }
 
 
+    public function changeExchangeRate(){
+        $res = myGet("https://v6.exchangerate-api.com/v6/575c78ea6173243d6c366814/latest/USD");
+        $r = object_to_array(json_decode($res));
+        $update['USD'] = 1;
+        $update['CNY'] = $r["conversion_rates"]['CNY'];
+        $update['NZD'] = $r["conversion_rates"]['NZD'];
+        $update['utime'] = time();
+        $this->exchange_rate_obj->where("id",1)->update($update);
+        return jsonSuccess([]);
+    }
+
+
     public function reviewerRepeat(){
         $repeats = $this->article_reviewer_repeat_obj->where("ctime","<",(time()-24*5*3600))->where("state",0)->delete(true);
 //        foreach ($repeats as $v){
diff --git a/application/api/controller/Base.php b/application/api/controller/Base.php
index 1aaa814..ef79fa7 100644
--- a/application/api/controller/Base.php
+++ b/application/api/controller/Base.php
@@ -87,6 +87,7 @@ class Base extends Controller
     protected $major_to_user_obj = "";
     protected $major_to_article_obj = "";
     protected $paystation_obj = "";
+    protected $exchange_rate_obj = "";
 
 
     public function __construct(\think\Request $request = null)
@@ -169,6 +170,7 @@ class Base extends Controller
         $this->major_to_user_obj = Db::name("major_to_user");
         $this->major_to_article_obj = Db::name("major_to_article");
         $this->paystation_obj = Db::name("paystation");
+        $this->exchange_rate_obj = Db::name("exchange_rate");
     }