调整类的文件命名规范为psr-4

library/traits/think/Instance.php

@@ -0,0 +1,40 @@
+<?php
+// +----------------------------------------------------------------------
+// | ThinkPHP [ WE CAN DO IT JUST THINK ]
+// +----------------------------------------------------------------------
+// | Copyright (c) 2006~2016 http://thinkphp.cn All rights reserved.
+// +----------------------------------------------------------------------
+// | Licensed ( http://www.apache.org/licenses/LICENSE-2.0 )
+// +----------------------------------------------------------------------
+// | Author: liu21st <liu21st@gmail.com>
+// +----------------------------------------------------------------------
+
+namespace traits\think;
+
+trait Instance
+{
+    protected static $instance = null;
+
+    // 实例化（单例）
+    public static function instance($options = [])
+    {
+        if (is_null(self::$instance)) {
+            self::$instance = new self($options);
+        }
+        return self::$instance;
+    }
+
+    // 静态调用
+    public static function __callStatic($method, $params)
+    {
+        if (is_null(self::$instance)) {
+            self::$instance = new self();
+        }
+        $call = substr($method, 1);
+        if (0 === strpos($method, '_') && is_callable([self::$instance, $call])) {
+            return call_user_func_array([self::$instance, $call], $params);
+        } else {
+            throw new \think\Exception("not exists method:" . $method);
+        }
+    }
+}