diff --git a/工具v4/database_tools_2.py b/工具v4/database_tools_2.py
index 18a382ef..f1e4e992 100644
--- a/工具v4/database_tools_2.py
+++ b/工具v4/database_tools_2.py
@@ -542,6 +542,7 @@ def AddRelatedProblemToDB(id,content,oid,editor,database):
 def AddProblemstoDict2024nocommit(startingid,raworigin,problems,editor,indexed,cursor): #将来自GenerateProblemListFromString的列表中的题目添加到thedict字典, 返回题号列表(包括用老题号替代的题目)
     mycursor = cursor
     idlist = []
+    problemlist = []
     id = int(startingid)
     currentsuffix = problems[0][1]
     problemindex = 0
@@ -549,6 +550,7 @@ def AddProblemstoDict2024nocommit(startingid,raworigin,problems,editor,indexed,c
         try:
             p, suffix, meta = p_and_suffix_and_meta
             p = re.sub(r"\n\s+","\n",p)
+            problemlist.append(p)
             pid = str(id).zfill(6)
             if suffix == currentsuffix:
                 problemindex += 1
@@ -610,7 +612,7 @@ def AddProblemstoDict2024nocommit(startingid,raworigin,problems,editor,indexed,c
             print(f"错误的题目: {p_and_suffix_and_meta}")
             idlist = []
             break
-    return idlist
+    return (idlist,problemlist)
 
 def CreateIDLinks(old_id_list,new_id_list): #建立已有id和新id之间的联系, thedict为可选, 选中的话即为当前字典, 会从new_id_list中排除当前字典中有的项
     if len(old_id_list)>len(new_id_list):
diff --git a/工具v4/批量收录新题.py b/工具v4/批量收录新题.py
index 77709fce..18ed9f2a 100644
--- a/工具v4/批量收录新题.py
+++ b/工具v4/批量收录新题.py
@@ -21,6 +21,7 @@ class MyWindow_bdsl(QWidget,Ui_Form):
         self.pushButton_step2.clicked.connect(self.execstep2)
         self.pushButton_commit.clicked.connect(self.commitchange)
         self.plainTextEdit_compared.textChanged.connect(self.commitdisable)
+        self.problemstoimport = []
     def togglesuffix(self):
         self.suffix_checked = self.checkBox_suffix.isChecked()
         if self.suffix_checked:
@@ -99,7 +100,15 @@ class MyWindow_bdsl(QWidget,Ui_Form):
         self.db = connect(hostname = db_host, port= db_port, username= db_user, pwd = db_pwd, db= self.database_name)
         self.cursor = self.db.cursor()
         rolled_back = False
-        idlist = AddProblemstoDict2024nocommit(nextspareid,raworigin,problems,editor,Indexed,self.cursor)
+        idlist,newproblemlist = AddProblemstoDict2024nocommit(nextspareid,raworigin,problems,editor,Indexed,self.cursor)
+        for p in newproblemlist:
+            if p in self.problemstoimport:
+                print("有重复导入的题目, 改变已回滚!!!\n"*5)
+                self.db.rollback()
+                rolled_back = True
+                break
+            else: 
+                self.problemstoimport.append(p)
         if idlist == []:
             print("有错误, 改变已回滚.")
             self.db.rollback()
@@ -108,6 +117,8 @@ class MyWindow_bdsl(QWidget,Ui_Form):
             AppendTextFile(f"{GetDate()}-{GetTime()}\n{generate_exp(idlist)}",idlistpath)
             os.system(f"code {idlistpath}")
             self.pushButton_commit.setEnabled(True)
+        else:
+            self.pushButton_commit.setDisabled(True)
     def commitdisable(self):
         self.pushButton_commit.setDisabled(True)