diff --git a/base.php b/base.php
index 2e793cd1..90ed498b 100644
--- a/base.php
+++ b/base.php
@@ -12,20 +12,21 @@
 //  版本信息
 define('THINK_VERSION', '5.0beta');
 // 系统常量
-defined('THINK_PATH') or define('THINK_PATH', dirname(__FILE__) . '/');
-defined('LIB_PATH') or define('LIB_PATH', THINK_PATH . 'library/');
-defined('MODE_PATH') or define('MODE_PATH', THINK_PATH . 'mode/'); // 系统应用模式目录
-defined('TRAIT_PATH') or define('TRAIT_PATH', THINK_PATH . 'traits/');
-defined('CORE_PATH') or define('CORE_PATH', LIB_PATH . 'think/');
-defined('ORG_PATH') or define('ORG_PATH', LIB_PATH . 'org/');
-defined('APP_PATH') or define('APP_PATH', dirname($_SERVER['SCRIPT_FILENAME']) . '/');
+defined('DS') or define('DS', DIRECTORY_SEPARATOR);
+defined('THINK_PATH') or define('THINK_PATH', dirname(__FILE__).DS);
+defined('LIB_PATH') or define('LIB_PATH', THINK_PATH.'library'.DS);
+defined('MODE_PATH') or define('MODE_PATH', THINK_PATH.'mode'.DS); // 系统应用模式目录
+defined('TRAIT_PATH') or define('TRAIT_PATH', THINK_PATH.'traits'.DS);
+defined('CORE_PATH') or define('CORE_PATH', LIB_PATH.'think'.DS);
+defined('ORG_PATH') or define('ORG_PATH', LIB_PATH . 'org'.DS);
+defined('APP_PATH') or define('APP_PATH', dirname($_SERVER['SCRIPT_FILENAME']).DS);
 defined('COMMON_MODULE') or define('COMMON_MODULE', 'common');
-defined('RUNTIME_PATH') or define('RUNTIME_PATH', realpath(APP_PATH) . '/runtime/');
-defined('DATA_PATH') or define('DATA_PATH', RUNTIME_PATH . 'data/');
-defined('LOG_PATH') or define('LOG_PATH', RUNTIME_PATH . 'log/');
-defined('CACHE_PATH') or define('CACHE_PATH', RUNTIME_PATH . 'cache/');
-defined('TEMP_PATH') or define('TEMP_PATH', RUNTIME_PATH . 'temp/');
-defined('VENDOR_PATH') or define('VENDOR_PATH', THINK_PATH . 'vendor/');
+defined('RUNTIME_PATH') or define('RUNTIME_PATH', realpath(APP_PATH).DS.'runtime'.DS);
+defined('DATA_PATH') or define('DATA_PATH', RUNTIME_PATH.'data'.DS);
+defined('LOG_PATH') or define('LOG_PATH', RUNTIME_PATH.'log'.DS);
+defined('CACHE_PATH') or define('CACHE_PATH', RUNTIME_PATH.'cache'.DS);
+defined('TEMP_PATH') or define('TEMP_PATH', RUNTIME_PATH.'temp'.DS);
+defined('VENDOR_PATH') or define('VENDOR_PATH', THINK_PATH.'vendor'.DS);
 defined('EXT') or define('EXT', '.php');
 defined('MODEL_LAYER') or define('MODEL_LAYER', 'model');
 defined('VIEW_LAYER') or define('VIEW_LAYER', 'view');
@@ -240,10 +241,10 @@ function session($name, $value = '')
         return think\Session::get($name);
     } elseif (is_null($value)) {
         // 删除session
-         think\Session::delete($name);
+        return think\Session::delete($name);
     } else {
         // 设置session
-        think\Session::set($name, $value);
+        return think\Session::set($name, $value);
     }
 }
 
@@ -263,7 +264,7 @@ function cookie($name, $value = '')
         return think\Cookie::delete($name);
     } else {
         // 设置session
-        think\Cookie::set($name, $value);
+        return think\Cookie::set($name, $value);
     }
 }