fix bug

app/controllers/zips_controller.rb

@@ -101,14 +101,12 @@ class ZipsController < ApplicationController
     @course   = @homework.course
     ##7。2 -hs新增
     @member = @course.course_member(current_user.id)
-    @all_student_works = @homework.teacher_works(@member)
+    @all_student_works = @homework.teacher_works(@member).where("work_status > 0")
     work_status = params[:work_status]
     group_id = params[:course_group]
 
-    if work_status.present? && !work_status.include?(0)
+    if work_status.present?
       @all_student_works = @all_student_works.where(work_status:work_status)
-    elsif work_status.present? && work_status.include?(0)
-      normal_status(-1,"仅支持导出已提交的学生！")
     end
 
     if group_id.present?