add RecommandPoint and DBRecommand file

htdocs/lib/Database/DBRecommand.php

@@ -0,0 +1,21 @@
+<?php
+
+namespace UElearning\Database;
+
+use UElearning\Exception;
+
+require_once UELEARNING_LIB_ROOT.'/Database/Database.php';
+require_once UELEARNING_LIB_ROOT.'/Database/Exception.php';
+
+class DBRecomamnd extends Database
+{
+	public function __construct()
+	{
+		
+	}
+	
+	protected function queryBelongByWhere($where)
+	{
+		
+	}
+}

htdocs/lib/Recommand/RecommandPoint.php

@@ -0,0 +1,55 @@
+<?php
+
+require_once __DIR__.'/../config.php';
+require_once UELEARNING_LIB_ROOT.'/Target/Target.php';
+use UElearning\Target;
+use UElearning\Exception;
+
+/**
+ * 推薦學習點
+ * Usage:
+ *	$recommand = new RecommandPoint();
+ */
+
+class RecommandPoint
+{
+	/**
+	 * 正規化參數
+	 *
+	 * @access private
+	 * @type double
+	 */
+	private $gamma;
+	
+	/**
+	 * 調和參數(常數)
+	 * 
+	 * @access private
+	 * @type double
+	 */
+	private const $ALPHA = 0.5;
+	
+	
+	public function __construct()
+	{
+		
+	}
+	
+	/**
+	 * 計算正規化參數
+	 * @return double 正規化參數
+	 */
+	private function computeNormalizationParameter()
+	{
+		
+	}
+	
+	/**
+	 * 推薦學習點
+	 * @return array 學習點清單
+	 */
+	public function recommand()
+	{
+		
+	}
+}