optimize db_path memory

ntfs_utils/db_node.py

@@ -4,6 +4,7 @@ import sqlite3
 from datetime import datetime
 
 from ntfs_utils.mft_analyze import GetFile80hPattern, GetFragmentData, ExtractSequenceHexValues, hex_list_to_int
+from ntfs_utils.main import volume_letter
 
 
 # 工具函数：获取文件扩展名
@@ -131,11 +132,10 @@ def GetFragmentLength(fragment):
 
 
 # 主函数：将 db_path 数据导入 db_node
-def InsertNodeDataToDB(volume_letter: str, db_path='../src/db_ntfs_info.db', table_name='db_node', batch_size=20):
+def InsertNodeDataToDB(db_path='../src/db_ntfs_info.db', table_name='db_node', batch_size=20):
     conn = sqlite3.connect(db_path)
     cursor = conn.cursor()
 
-    volume_letter = volume_letter.upper().strip()
     if len(volume_letter) == 1:
         volume_root = f"{volume_letter}:\\"
     elif volume_letter.endswith(':'):
@@ -254,5 +254,4 @@ def InsertNodeDataToDB(volume_letter: str, db_path='../src/db_ntfs_info.db', tab
 
 
 if __name__ == "__main__":
-    volume_letter_test = "Y"
-    InsertNodeDataToDB(volume_letter=volume_letter_test)
+    InsertNodeDataToDB()