diff --git a/工具v2/database_tools.py b/工具v2/database_tools.py
index ff83e02d..b02e0bb0 100644
--- a/工具v2/database_tools.py
+++ b/工具v2/database_tools.py
@@ -1,4 +1,4 @@
-import json,re,os,Levenshtein,fitz,time,sys
+import json,re,os,Levenshtein,fitz,time,sys,subprocess
 import pandas as pd
 import pyperclip
 
@@ -2122,5 +2122,23 @@ def TitleIDTupleListtoString(correspoinding_list): #将(标题,题号字符串)
         output_string += f"{count}. {corresp[0]}: {corresp[1]}\n"
     return output_string
 
+def startfile(filepath): #跨平台打开文件或文件夹
+    isfile = os.path.isfile(filepath)
+    osname = sys.platform
+    if osname == "win32":
+        if not isfile:
+            ret = subprocess.Popen(["explorer",filepath])
+        if isfile:
+            ret = subprocess.Popen(["start",filepath], shell=True)
+    elif osname == "darwin":
+        ret = subprocess.Popen(["open",filepath])
+    elif osname == "linux":
+        ret = subprocess.Popen(["xdg-open",filepath])
+    return ret
+    
+
+
+
+
 if __name__ == "__main__":
     print("数据库工具, import用.")
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