Django 缩略图

 def xnn_image(self, obj):

        try:
            img = mark_safe(
                '<a href="{}" target="_blank"><img src="{}" width="25px" height="25px"/></a>'.format(
                    obj.legend_mf.url,
                    obj.legend_mf.url))

            html1 = "<div>" + img + "</div><div></div>"
        except Exception as e:
            html1 = ''
        return mark_safe(html1)

    xnn_image.short_description = '电源线/GPS/GPRS安装'
    xnn_image.allow_tags = True
    xnn_image.admin_order_field = 'codeid'