修复！

在删除时，必须在对象ID前添加userid：

You have to prepend the userid to the object ID when deleting:

删除 https://graph.facebook.com/673509687_104812882909249?access_token= {access_token}
其中
673509687是我的用户ID，104812882909249是objectID

DELETE https://graph.facebook.com/673509687_104812882909249?access_token={access_token} where 673509687 is my userID and 104812882909249 is the objectID