Django后台列表添加扩展列表列，字段内容以链接方式实现的方法

# admin.py
from django.core.urlresolvers import reverse

class BlogAdmin(admin.ModelAdmin):
    ...
    list_display = ('title', 'published', 'writer', 'published_date', 'list_operate')
    ...
    def list_operate(self, obj):
        return '<a href="%s"><i class="icon-eye-open" title="查看"></i></a>' % reverse('blog:blog_content', kwargs={'blogid': obj.id})
    list_operate.short_description = '操作'
    list_operate.allow_tags = True