diff --git a/工具v2/database_tools.py b/工具v2/database_tools.py
index 26d62482..0539a7dd 100644
--- a/工具v2/database_tools.py
+++ b/工具v2/database_tools.py
@@ -1975,7 +1975,7 @@ def MultiplechoicetoBlankFilling(string_raw): #把多选题的题干和选项转
     output = headstring + output[:-2]+"."
     return output
 
-def ExtractIDList(filepath): #从文件获取题目序号和ID的对应, 返回一个列表, 列表中的每个tuple都是(文件中的题目序号,六位题号)
+def ExtractIDList(filepath): #从文件获取题目序号和ID的对应, 返回一个列表, 列表中的每个tuple都是(文件中的题目序号(int),六位题号(string))
     if filepath[-4:] == ".pdf":
         data = parsePDF(filepath)
         idlist = re.findall(r"(\d+)\.[\s\n]*\((\d{6})\)",data)
@@ -1996,7 +1996,31 @@ def ExtractIDList(filepath): #从文件获取题目序号和ID的对应, 返回
                 for id in bodylist:
                     ind += 1
                     idlist.append((str(ind),id))
+    idlist = [(int(id[0]),id[1]) for id in idlist]
     return idlist
 
+def ExportIDList(filepath): #从.tex或.pdf文件获取题目序号和ID的对应(每一行每个题号分别对应第1,2,3...题, 空缺的题号的ID用999999表示), 返回题号字符串
+    idlist = ExtractIDList(filepath)
+    output = ""
+    currentoutput = []
+    for i in range(len(idlist)):
+        item = idlist[i]
+        if i == 0:
+            currentind = item[0]
+            currentoutput +=["999999"]*(item[0]-1)
+            currentoutput.append(item[1])
+        elif item[0] >= currentind + 1:
+            currentoutput+=(["999999"]*(item[0]-currentind-1))
+            currentind = item[0]
+            currentoutput.append(item[1])
+        else:
+            output += ",".join(currentoutput)+"\n\n"
+            currentoutput = []
+            currentind = item[0]
+            currentoutput +=["999999"]*(item[0]-1)
+            currentoutput.append(item[1])
+    output += ",".join(currentoutput)+"\n\n"
+    return output
+
 if __name__ == "__main__":
     print("数据库工具, import用.")
\ No newline at end of file