perf: 优化初始化数据

app/Module/Table/OnlineData.php

@@ -0,0 +1,22 @@
+<?php
+
+namespace App\Module\Table;
+
+class OnlineData extends AbstractData
+{
+    public static function incr($userid)
+    {
+        $key = "online::" . $userid;
+        $value = intval(self::get($key, 0));
+        self::set($key, ++$value);
+        return $value;
+    }
+
+    public static function decr($userid)
+    {
+        $key = "online::" . $userid;
+        $value = intval(self::get($key, 0));
+        self::set($key, --$value);
+        return $value;
+    }
+}