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app/admin/service/ConfigService.php

@@ -0,0 +1,20 @@
+<?php
+
+namespace app\admin\service;
+
+use think\facade\Cache;
+
+class ConfigService
+{
+
+    public static function getVersion()
+    {
+        $version = cache('site_version');
+        if (empty($version)) {
+            $version = sysConfig('site', 'site_version');
+            cache('site_version', $version);
+        }
+        return $version;
+    }
+
+}