order_by didn't work
it is my fault ,my code logic is error , thanks for peewee
when i use peewee to order my result like this:
`us = Users.select().order_by(Users.id.desc())`
i find desc didn't work, so i use 
`us = Users.select().order_by(Users.id.asc())`
the result is same as desc , so why desc didn;t work? 
thanks 