diff --git a/工具v4/database_tools_2.py b/工具v4/database_tools_2.py
index e38d6c67..5b87aab1 100644
--- a/工具v4/database_tools_2.py
+++ b/工具v4/database_tools_2.py
@@ -2483,7 +2483,7 @@ def SubstringOccurence(regex,string): #生成regex在string中出现的所有位
     poslist = [item.start() for item in re.finditer(regex,string)]
     return poslist
 
-def select_grade_from_pro_dict(prodict,grades):
+def select_grade_from_pro_dict(prodict,grades): #grades是一个list
     if len(grades) == 0:
         return prodict
     else:
diff --git a/工具v4/单人讲义生成.py b/工具v4/单人讲义生成.py
index 4a5c431e..1e21b5f0 100644
--- a/工具v4/单人讲义生成.py
+++ b/工具v4/单人讲义生成.py
@@ -74,7 +74,8 @@ class MyWindow_drsc(QWidget,Ui_Form):
         structures_dict = load_structures_dict_from_mariadb(mycursor)
         raw_pro_dict,obj_dict,bn_dict,unit_obj_dict = generateDictsfromMariaDB(mycursor)
         if self.radioButton_teacher.isChecked() and self.checkBox_usages.isChecked() and not self.lineEdit_class.text().strip() == "":
-            grades = self.lineEdit_class.text().strip().split(",")
+            grades = RefinePunctuations(self.lineEdit_class.text().strip()).split(",")
+            grades = [g.strip() for g in grades]
         else:
             grades = []
         pro_dict = select_grade_from_pro_dict(raw_pro_dict,grades)
diff --git a/工具v4/系列讲义生成.py b/工具v4/系列讲义生成.py
index f60aa5aa..a44ab817 100644
--- a/工具v4/系列讲义生成.py
+++ b/工具v4/系列讲义生成.py
@@ -85,7 +85,8 @@ class MyWindow_jysc(QWidget,Ui_Form):
         structures_dict = load_structures_dict_from_mariadb(mycursor)
         raw_pro_dict,obj_dict,bn_dict,unit_obj_dict = generateDictsfromMariaDB(mycursor)
         if self.radioButton_teacher.isChecked() and self.checkBox_usages.isChecked() and not self.lineEdit_grades.text().strip() == "":
-            grades = self.lineEdit_grades.text().strip().split(",")
+            grades = RefinePunctuations(self.lineEdit_grades.text().strip()).split(",")
+            grades = [g.strip() for g in grades]
         else:
             grades = []
         pro_dict = select_grade_from_pro_dict(raw_pro_dict,grades)