【课堂】学生的成绩导出，增加邮箱信息的导出

app/controllers/courses_controller.rb

@@ -2394,9 +2394,10 @@ class CoursesController < ApplicationController
     sheet1[4,0] = "排名"
     sheet1[4,1] = "学生姓名"
     sheet1[4,2] = "昵称"
-    sheet1[4,3] = "学号"
-    sheet1[4,4] = "分班"
-    current_col = 4
+    sheet1[4,3] = "邮箱"
+    sheet1[4,4] = "学号"
+    sheet1[4,5] = "分班"
+    current_col = 5
     homeworks.where(:homework_type => 4).each do |homework|
       sheet1[4,current_col+=1] = "#{homework.name}"
     end
@@ -2428,6 +2429,7 @@ class CoursesController < ApplicationController
       sheet1[count_row,column]= i+1
       sheet1[count_row,column+=1] = member.user.show_real_name
       sheet1[count_row,column+=1] = member.user.login
+      sheet1[count_row,column+=1] = member.user.mail
       sheet1[count_row,column+=1] = member.user.user_extensions.student_id
       sheet1[count_row,column+=1] = member.course_group_id == 0 ? "暂无" : member.course_group.name
       # current_col = 5