初始化sql存储
<gsb-pagecard>
    <div slot="content">
        <gsb-grid2
            bizCode="moneyaccount"
            spaceHeight="100"
            modelName="moneyaccount"
            listMethod="findAndCountAll"
            deleteMethod="delete"
            initMethod="initNewInstance"
            isDataAuto="true"
          :headStyle="headStyle"
          :colFormatter="onColFormater"
          :isSingleSelect="isSingleSelect"
          :btnvisble="btnvisbleMethod"
          cansum="true"
          :sumfields="sfs"
          :avgfields="avgs"
          @rowclick="onRowClick">
        </gsb-grid2>
    </div>
</gsb-pagecard>

  data: function() {
      return {
        multipleSelection: [],
        isSingleSelect: true,
        // sfs:[{field:'balance',label:'总计金额'}],
        // avgs:[{field:'balance',label:'平均金额'}]
      }
    },