内核更新

core/library/think/cache/Driver.php

@@ -105,7 +105,7 @@ abstract class Driver
             $this->rm($name);
             return $result;
         } else {
-            return null;
+            return;
         }
     }
 

core/library/think/cache/driver/Memcache.php

@@ -12,7 +12,6 @@
 namespace think\cache\driver;
 
 use think\cache\Driver;
-use think\Exception;
 
 class Memcache extends Driver
 {

core/library/think/cache/driver/Sqlite.php

@@ -12,7 +12,6 @@
 namespace think\cache\driver;
 
 use think\cache\Driver;
-use think\Exception;
 
 /**
  * Sqlite缓存驱动

core/library/think/cache/driver/Wincache.php

@@ -12,7 +12,6 @@
 namespace think\cache\driver;
 
 use think\cache\Driver;
-use think\Exception;
 
 /**
  * Wincache缓存驱动
@@ -28,7 +27,7 @@ class Wincache extends Driver
     /**
      * 架构函数
      * @param array $options 缓存参数
-     * @throws Exception
+     * @throws \BadFunctionCallException
      * @access public
      */
     public function __construct($options = [])

core/library/think/cache/driver/Xcache.php

@@ -12,7 +12,6 @@
 namespace think\cache\driver;
 
 use think\cache\Driver;
-use think\Exception;
 
 /**
  * Xcache缓存驱动