Echarts的数据展示（dataView）功能

    toolbox: {
            show : true,
            x:'800',
            feature : {
                dataView : {show: true, title: '数据视图',readOnly: true,optionToContent:function(opt){
                     var axisData = opt.yAxis[0].data;
                     var series = opt.series;
                     var table = '<table class="dataViewTable"><tbody><tr class="dataViewTr">'
                                  + '<td class="dataViewHead">' + '记录要点'+ '</td>'
                                  + '<td class="dataViewHead">' + '完成进度' + '</td>'
                                  + '</tr>';
                     for (var i = 0, l = axisData.length; i < l; i++) {
                         table += '<tr class="dataViewTr">'
                                  + '<td class="dataViewTd">' + axisData[i] + '</td>'
                                  + '<td class="dataViewTd">' + series[0].data[i] + '</td>'
                                  + '</tr>';
                     }
                     table += '</tbody></table>';
                     return table;
                        
                    }},   
                restore : {show: true},  
                saveAsImage : {show: true}
            }
        },