golang 遍历查询beego数据库结果

func (m *DecemberPrize) PrizeList(virtual int) ([]orm.Params, error) {
	o := orm.NewOrm()
	var maps []orm.Params
	if virtual == 1 {
		sql := "SELECT id,low_index,name,image,weight,num,virtual,if_reserve,stock,`left`,`top` FROM " + m.TableName() + " WHERE virtual=? and num>0 AND status=1 ORDER BY weight asc"

		_, e := o.Raw(sql, virtual).Values(&maps)
		return maps, e
	} else {
		sql := "SELECT id,low_index,name,image,weight,num,virtual,if_reserve,stock,`left`,`top` FROM " + m.TableName() + " WHERE virtual=? and num>0 AND status=1 ORDER BY weight asc"

		_, e := o.Raw(sql, virtual).Values(&maps)
		return maps, e
	}

}

for k, v := range params {
　　 s := v["weight"].(string)
    //fmt.Println("sss          ",s)

    //vWeight, _ := strconv.ParseInt(s, 10, 64)
    vWeight, _ := strconv.ParseFloat(s, 64)
    //fmt.Println(vWeight)
    params[k]["weight"] = vWeight * 10000
    //if($v->num == 0) $radio += $v->weight;
    num1 := v["num"].(string)
    num, _ := strconv.Atoi(num1)
    if num <= 0 {
      ratio += float64(vWeight)
    }

}