<%=link_to "主页", home_path %> > <%=l(:label_courses_management_platform)%> > <%= link_to(homework_attach.bid.courses.first.name.to_s, homework_course_path(homework_attach.bid.courses.first)) if homework_attach.bid.courses.first%> > <%=link_to(homework_attach.bid.name, course_for_bid_path(homework_attach.bid)) %> > <%= link_to homework_attach.name.nil? ? homework_attach.user.name + "提交的作业" : homework_attach.name,homework_attach_path(homework_attach)%>