How to override create,write,unlink method in Odoo v8

As we all know, Odoo 8 has new api which is different with v7. So how to override the create,write,unlink orm method in odoo 8 way ?

Let see it.

if you want override create method you have to use the model decorator.

@api.model
def create(self,values):
    ............

if you want override write method ,you are not supposed to use write method,using multi decorator instead.

@api.multi
def write(self,values):
  ......................

the same with unlink:

@api.multi
def unlink(self):
    ..............