初始化项目：添加后端代码、ThinkPHP框架、前端资源

addons/epay/library/Collection.php

@@ -0,0 +1,18 @@
+<?php
+
+namespace addons\epay\library;
+
+class Collection extends \Yansongda\Supports\Collection
+{
+
+    /**
+     * 创建 Collection 实例
+     * @access public
+     * @param  array $items 数据
+     * @return static
+     */
+    public static function make($items = [])
+    {
+        return new static($items);
+    }
+}