miniui 渲染单元格样式

grid.on("drawcell", function(res){
        var record = res.record;
        var field = res.field;
        var value = res.value;
        if (field == "checkquantity" && Number(record.deliveryquantity) != Number(record.checkquantity)){
            res.cellStyle = "color: red;";
        }
    });