Django 实现admin后台显示图片缩略图的例子

from django.utils.safestring import mark_safefrom django.contrib import admin@admin.register(AliOSSFile)class AliOssUploadAdmin(admin.ModelAdmin):  def upload_img(self, obj):    try:      img = mark_safe('<img src="%s" width="50px" />' % (obj.file.url,))    except Exception as e:      img = ''    return img  upload_img.short_description = 'Thumb'  upload_img.allow_tags = True  list_display = ['id', 'ali_id', 'file', 'upload_img', 'created_time']  readonly_fields = ['upload_img']