              name: 'AQI指数',
                        nameLocation: 'end',
                        nameGap: 20,
                        nameTextStyle: {
                            color: '#fff',
                            fontSize: 20
                        },
                        axisTick: {
                            lineStyle: {
                                color: '#777'
                            }
                        },
                        splitLine: {
                            