diff --git a/工具v2/database_tools.py b/工具v2/database_tools.py
index d36ac772..32cafed4 100644
--- a/工具v2/database_tools.py
+++ b/工具v2/database_tools.py
@@ -1356,6 +1356,17 @@ def setCopy(string): # 写入剪切板内容
     wc.SetClipboardData(win32con.CF_UNICODETEXT, string)
     wc.CloseClipboard()
 
+def itemizeProblems(string): #将题号替换为\item
+    string_list = string.split("\n")
+    itemed_list = []
+    for line in string_list:
+        if not "&" in line:
+            itemed_list.append(re.sub(r"(?:(?:^|\n)+[例]*[\s]*[0-9]+[\s]*[\.、\s]+|\[[\s]*例[\s]*[0-9]*[\s]*\][\s]*)","\\n\\\\item ",line))
+        else:
+            itemed_list.append(line)
+    string = "\n".join(itemed_list)
+    return string
+
 def RefineMathpix(raw_string): # 进一步修改mathpix得到的字符串
     puctuationsfulltosemi = {"　": " ","。": ". ","．": ". ","，": ", ","：": ": ","；": "; ","（": "(","）": ")","？": "? ","“": "``","”": "''", "【": "[", "】": "]"}
     replacestrings = {r"\\overparen": r"\\overset\\frown", "eqslant": "eq", r"\\vec": r"\\overrightarrow ", r"\\bar": r"\\overline", r"\\lim": r"\\displaystyle\\lim", r"\\sum":r"\\displaystyle\\sum", r"\\prod":r"\\displaystyle\\prod", r"\\mid":"|", r"\^\{\\prime\}":"'",r"e\^":r"\\mathrm{e}^",r"/\s*/":r"\\parallel "}
@@ -1373,7 +1384,7 @@ def RefineMathpix(raw_string): # 进一步修改mathpix得到的字符串
     for s in wrongrecog:
         string = re.sub(s,wrongrecog[s],string) #修改mathpix识别的一些常见错别字 
     string = re.sub(r"[\s]*(``|''|\}|\{) *",lambda matchobj: matchobj.group(1),string) #去除符号前后的空格
-    string = re.sub(r"(?:(?:^|\n)+[例]*[\s]*[0-9]+[\s]*[\.、\s]+|\[[\s]*例[\s]*[0-9]*[\s]*\][\s]*)","\\n\\\\item ",string) #将题号替换为\item
+    string = itemizeProblems(string) #将题号替换为\item
     string = re.sub(r"\$\$","$",string) #行间公式替换为行内公式
     string = re.sub(r"\$\s+\$"," ",string) #删除多余的$符号
     string = re.sub(r"([,.:;?!])\$",lambda x:x.group(1)+" $",string) #标点和$符号分开