bootstrap table 中嵌入百分比进度条

字段设置：

<th data-field="wrongpercent" data-align="center" data-formatter="wrongPercent">错误率%</th>

格式化方法：

function wrongPercent(value, row, index) {
        var res = 100 * row.wrongnums / row.testnums;
return ["<div class='progress'> <div class='progress-bar' role='progressbar' aria-valuenow='50' aria-valuemin='0' aria-valuemax='100' style='width:"+res.toFixed(2)+"%'>"+res.toFixed(2)+"</div> </div>"];
//        return res.toFixed(2);
}

效果：