diff --git a/.gitignore b/.gitignore
index 2e5ace4..8fe3e88 100644
--- a/.gitignore
+++ b/.gitignore
@@ -1,4 +1,6 @@
 点名器.spec
 build/
 dist/
-.history/
\ No newline at end of file
+.history/
+config.data
+names.xls
\ No newline at end of file
diff --git a/点名器.pyw b/点名器.pyw
index 51895b2..a1a4ff8 100644
--- a/点名器.pyw
+++ b/点名器.pyw
@@ -119,7 +119,7 @@ for tmp_class in classes:
     listbox.insert("end",tmp_class)
 
 def sel_class(flag = 1):
-    global filter, listbox, classes, cur_stu, students
+    global filter, listbox, classes, cur_stu, students, percent_override
     filter.clear()
     for selection in listbox.curselection():
         # print(selection)
@@ -128,6 +128,7 @@ def sel_class(flag = 1):
     if filter:
         if flag:
             msgbox.showinfo('班级选择已应用', '已应用当前班级选择', parent=gui)
+            percent_override = False
         cur_stu.clear()
         for student in students:
             if student.class_name in filter:
@@ -136,9 +137,12 @@ def sel_class(flag = 1):
     else:
         if flag:
             msgbox.showwarning('班级选择已应用', '当前设置会选择所有班级的名单,这样对吗?', parent=gui)
+            percent_override = False
         filter = classes[:]
         cur_stu = students[:]
 
+
+
 def choose():
     global last_choice, cur_stu
     sel_class(0)