单独的seq。xml文件

<?xml version="1.0" encoding="utf-8"?>
<openerp>
    <data noupdate="1"><!-- Sequences for demo_contract_lx -->
        <record id="seq_type_demo_contract_lx" model="ir.sequence.type">
            <field name="name">Demo contract lx</field>
            <field name="code">demo.contract.lx</field>
        </record>
        <record id="seq_demo_contract_lx" model="ir.sequence">
             <field name="name">Demo contract lx</field>
            <field name="code">demo.contract.lx</field>
            <field name="prefix">FSDLX%(year)s</field>
            <field name="padding">5</field>
            <field name="company_id" eval="False"/>
            <!--<field name="implementation">yynum</field>-->
        </record>

        <record id="seq_type_sigining_contract" model="ir.sequence.type">
            <field name="name">Sigining contract</field>
            <field name="code">sigining.contract</field>
        </record>
        <record id="seq_sigining_contract" model="ir.sequence">
            <field name="name">Sigining contract</field>
            <field name="code">sigining.contract</field>
            <field name="prefix">FSD%(year)s</field>
            <field name="padding">5</field>
            <field name="company_id" eval="False"/>
            <!--<field name="implementation">yynum</field>-->
        </record>

        </data></openerp>

在py里写

# 'pname': fields.related('product_id', 'pname',relation='product.product', type="char", string='Product Name',readonly=True,),
   _columns = {

   }

   _defaults={
       'state':'draft',
   }

   def create(self,cr,uid,vals,context=None):
       if context is None:
           context ={}
       if vals.get('contract_origin', '/') == '/':
           vals['contract_origin'] = self.pool.get('ir.sequence').get(cr, uid, 'sigining.contract', context=context) or '/'
       new_id=super(sigining_contract,self).create(cr,uid,vals,context=context)
       return new_id

因为有写好的模块，所以可以直接调用