diff --git a/app/models/course.rb b/app/models/course.rb
index f61ff1e2a..d36d5d2c5 100644
--- a/app/models/course.rb
+++ b/app/models/course.rb
@@ -308,12 +308,12 @@ class Course < ApplicationRecord
     teacher_power_courses = []
     if course_groups.present?
       common_ids.each do |i|
-        student_count = students.where(course_group_id:i).count
         if i == 0
+          student_count = students.where(course_group_id:i).count
           teacher_power_courses << {course_name:"未分班",course_id:0,student_count:student_count}
         else
           course_group_name = course_groups.find_by(id:i)
-          teacher_power_courses << {course_name:course_group_name&.name,course_id:i,student_count:student_count}
+          teacher_power_courses << {course_name:course_group_name&.name,course_id:i,student_count:course_group_name&.course_members_count}
         end
       end
     end
diff --git a/app/models/homework_common.rb b/app/models/homework_common.rb
index 193d9aa6c..70755e508 100644
--- a/app/models/homework_common.rb
+++ b/app/models/homework_common.rb
@@ -79,7 +79,8 @@ class HomeworkCommon < ApplicationRecord
   # 根据是否统一发布获取作业的作品列表
   def all_works
     student_works = self.unified_setting ? self.student_works :
-                        self.student_works.joins("join course_members on student_works.user_id=course_members.user_id").where(course_members: {course_group_id: self.published_settings.pluck(:course_group_id)})
+                        self.student_works.joins("join course_members on student_works.user_id=course_members.user_id").
+                            where(course_members: {course_group_id: self.published_settings.pluck(:course_group_id)})
   end
 
   # 分班权限的老师可见的作品列表