编辑课程成员后，更新老师数量和学生数量

app/views/members/update.js.erb

@@ -2,6 +2,8 @@
 $('#pro_st_tbc_03').html('<%= escape_javascript(render :partial => 'projects/settings/new_members') %>');
 <%elsif @course%>
 $('#course_members_setting').html('<%= escape_javascript(render :partial => 'courses/course_members') %>');
+$("#teacher_number").html("<%= searchTeacherAndAssistant(@course).count %>")
+$("#student_number").html("<%= studentCount(@course) %>");
 <%end%>
 hideOnLoad();