diff --git a/main.py b/main.py
index b3bd96c..40c78c8 100644
--- a/main.py
+++ b/main.py
@@ -53,9 +53,16 @@ class PikpakConsole(cmd2.Cmd):
         )
         handler = logging.StreamHandler()
         handler.setFormatter(formatter)
+        handler.setLevel(logging.INFO)
+
+        file_handler = logging.FileHandler('app.log')
+        file_handler.setFormatter(formatter)
+        file_handler.setLevel(logging.DEBUG)
+        
         logger = logging.getLogger()
         logger.addHandler(handler)
-        logger.setLevel(logging.INFO)
+        logger.addHandler(file_handler)
+        logger.setLevel(logging.DEBUG)
 
     def IOWorker(self, loop):
         self.terminal_lock.acquire() # 我看cmdloop是这么做的，所以我也这么做
@@ -80,10 +87,10 @@ class PikpakConsole(cmd2.Cmd):
     def ParserProvider(self):
         return cmd2.Cmd2ArgumentParser()
 
-    def AddPathParser(parserProvider):
+    def AddPathParser(parserProvider, nargs = "?"):
         def PathParserProvider(self):
             parser = parserProvider(self)
-            parser.add_argument("path", help="path", default="", nargs="?", type=RunSyncInLoop(self.loop)(self.client.PathToNode))
+            parser.add_argument("path", help="path", default="", nargs=nargs, type=RunSyncInLoop(self.loop)(self.client.PathToNode))
             return parser
         return PathParserProvider
     
@@ -208,15 +215,16 @@ class PikpakConsole(cmd2.Cmd):
         List files in a directory
         """
         node = args.path
+        if node is None:
+            await self.aoutput("Invalid path")
+            return
+        await self.client.Refresh(node)
         if IsDir(node):
             for childId in node.childrenId:
                 child = self.client.GetNodeById(childId)
                 await self.aoutput(child.name)
         elif IsFile(node):
-            await self.client.Refresh(node)
-            await self.aoutput(f"{node.name}: {node.url}")
-        else:
-            await self.aoutput("Invalid path")
+            await self.aoutput(f"{node.name}: {node.url}")            
     
     @RunSync
     async def complete_cd(self, text, line, begidx, endidx):
@@ -252,7 +260,7 @@ class PikpakConsole(cmd2.Cmd):
         return await self.PathCompleter(text, line, begidx, endidx, filterFiles = False)
 
     @RunSync
-    @ProvideDecoratorSelfArgs(cmd2.with_argparser, AddPathParser(ParserProvider))
+    @ProvideDecoratorSelfArgs(cmd2.with_argparser, AddPathParser(ParserProvider, "+"))
     async def do_rm(self, args):
         """
         Remove a file or directory
diff --git a/pikpakFs.py b/pikpakFs.py
index 1c959fd..15676e1 100644
--- a/pikpakFs.py
+++ b/pikpakFs.py
@@ -147,7 +147,6 @@ class PKVirtFs:
     async def Refresh(self, node : VirtFsNode):
         if node.lastUpdate != None:
             return
-
         if IsDir(node):
             next_page_token = None
             childrenInfo = []
@@ -211,8 +210,6 @@ class PKVirtFs:
             current = self.FindChildInDirByName(current, spot)
             
         if current != None:
-            if IsDir(current):
-                await self.Refresh(current)
             father = self.GetFatherNode(current)
             sonName = current.name
         
@@ -242,22 +239,26 @@ class PKVirtFs:
         await self.client.login()
         self._dump_login_info()
 
+    def log_json(self, json_obj):
+        logging.debug(json.dumps(json_obj, indent=4))
+
     async def MakeDir(self, node : DirNode, name : str) -> DirNode:
-        await self.client.create_folder(name, node.id)
-        await self.Refresh(node)
-        return self.FindChildInDirByName(node, name)
+        result = await self.client.create_folder(name, node.id)
+        id = result["file"]["id"]
+        name = result["file"]["name"]
+        newDir = DirNode(id, name, node.id)
+        self.nodes[id] = newDir
+        node.childrenId.append(id)
+        return newDir
 
     async def Download(self, url : str, dirNode : DirNode) -> None :
         # 默认创建在当前目录下
         # todo: 完善离线下载task相关
-        await self.client.offline_download(url, dirNode.id)
+        self.log_json(await self.client.offline_download(url, dirNode.id))
 
-    async def Delete(self, node : VirtFsNode) -> None:
-        father = self.GetFatherNode(node)
-        if not IsDir(father):
-            raise Exception('Failed to locate')
-        if self.currentLocation is node or self._is_ancestors_of(node, self.currentLocation):
-            raise Exception('Delete self or ancestor is not allowed')
-        
-        await self.client.delete_to_trash([node.id])
-        await self.Refresh(father)
\ No newline at end of file
+    async def Delete(self, nodes : list[VirtFsNode]) -> None:
+        nodeIds = [node.id for node in nodes]
+        await self.client.delete_to_trash(nodeIds)
+        for node in nodes:
+            father = self.GetFatherNode(node)
+            father.childrenId.remove(node.id)
\ No newline at end of file