diff --git a/library/think/Loader.php b/library/think/Loader.php
index cac39ed7..3059f178 100644
--- a/library/think/Loader.php
+++ b/library/think/Loader.php
@@ -37,7 +37,6 @@ class Loader
         } else {
             // 命名空间自动加载
             list($name, $class) = explode('\\', $class, 2);
-            $name               = strtolower($name);
             if (isset(self::$namespace[$name])) {
                 // 注册的命名空间
                 $path = self::$namespace[$name];
diff --git a/library/think/Session.php b/library/think/Session.php
index 660ae030..13ce8c55 100644
--- a/library/think/Session.php
+++ b/library/think/Session.php
@@ -69,14 +69,14 @@ class Session
         }
         if (!empty($config['type'])) {
             // 读取session驱动
-            $class = (!empty($config['namespace']) ? $config['namespace'] : '\\think\\session\\driver\\') . strtolower($config['type']);
+            $class = (!empty($config['namespace']) ? $config['namespace'] : '\\think\\session\\driver\\') . ucwords($config['type']);
             // 检查驱动类
             if (!session_set_save_handler(new $class())) {
                 throw new Exception('error session handler', 11700);
             }
         }
         // 启动session
-        if (!empty($config['auto_start']) && PHP_SESSION_ACTIVE!=session_status()) {
+        if (!empty($config['auto_start']) && PHP_SESSION_ACTIVE != session_status()) {
             ini_set('session.auto_start', 0);
             session_start();
         }