           {name: 'CO', index: 4, text: '一氧化碳（CO）'},
                {name: 'NO2', index: 5, text: '二氧化氮（NO2）'},
                {name: 'SO2', index: 6, text: '二氧化硫（SO2）'}
            ];

            require([
                'data/aqi/BJdata',
                'data/aqi/GZdata',
                'data/aqi/SHdata',
                'echarts'
            ], function (dataBJ, dataGZ, dataSH, echarts) {

                var chart = echarts.init(document.getElementById('main'), 