add

app/admin/controller/Indetcode.php

@@ -0,0 +1,16 @@
+<?php
+
+namespace app\admin\controller;
+
+use app\common\controller\Backend;
+use app\admin\model\SysCaptcha;
+class Indetcode extends Backend
+{
+    protected array $noNeedLogin = ['*'];
+    public function getCode()
+    {
+        $data = $this->request->get();
+        if(empty($data['uuid']))$this->error('参数不完整');
+        $this->success('ok', SysCaptcha::getCode($data['uuid']));
+    }
+}