odoo 打印格式中 打印第一个数据默认

<table style="100%;">
    <tr>
        <td style="word-wrap:break-word;20%;font-size:18">供应商:<span t-field="o.partner_id"/></td>
        <td style="word-wrap:break-word;38%;font-size:18">日  期:<span t-field="o.date" t-field-options='{"widget": "date", "datetime": "o.date_order"}'/></td>
        <td style="word-wrap:break-word;20%;font-size:18">税  码:</td>
        <td style="word-wrap:break-word;20%;font-size:18">订单编号:<span t-field="o.name"/></td>
    </tr>
    <tr>
     <td style="word-wrap:break-word;20%;font-size:18">
           <t t-foreach="o.partner_id" t-as="partner_id" class="gxtr">
                <t t-set="j" t-value="0" />
               联系人:
                <t t-foreach="partner_id.child_ids" t-as="child_ids" class="gxtr">
                    <t t-if="j==0">
                       <span t-field="child_ids.name"/>/<span t-field="child_ids.mobile"/>
                       <t t-set="j" t-value="j+1" />
                   </t>
               </t>
               </t>
        </td>
        <td style="word-wrap:break-word;20%;font-size:18">传  真:<span t-field="o.partner_id.fax"/></td>
        <td style="word-wrap:break-word;38%;font-size:18">电  话:<span t-field="o.partner_id.phone"/></td>
        <td style="word-wrap:break-word;20%;font-size:18">手  机:<span t-field="o.partner_id.mobile"/></td>
    </tr>
    <tr style="height:10"></tr>
</table>