<%= link_to image_tag(url_to_avatar(activity.user), :width => "90", :height => "90"), user_path(activity.user_id), :alt => "用户头像" %>
<% if activity.try(:user).try(:realname) == ' ' %> <%= link_to activity.try(:user), user_path(activity.user_id), :class => "newsBlue mr15" %> <% else %> <%= link_to activity.try(:user).try(:realname), user_path(activity.user_id), :class => "newsBlue mr15" %> <% end %> TO <%= link_to activity.course.name.to_s+"(课程名称)", course_path(activity.course_id), :class => "newsBlue ml15", :style=>"word-break:break-all" %>
<%= link_to activity.name.to_s+"(作业名称)", student_work_index_path(:homework => activity.id), :class => "postGrey", :style=>"word-break:break-all" %>
<%= link_to "提交("+activity.student_works.count.to_s+")", student_work_index_path(activity.id), :class=> "c_blue" %>
截止时间：<%= format_date(activity.end_time) %>
（作业描述）<%= activity.description.html_safe %>