    z: 100
                    }].concat(echarts.util.map(dataList, function (data, index) {
                        return {
                            type: 'bar',
                            animation: false,
                            name: legendData[index + 1],
                            itemStyle: {
                                normal: {
                                    opacity: 0.5
                                }
                            },
                            data: data
      