option = { grid: { left: '3%', right: '3%', top: '10%', bottom: '10%', containLabel: true }, legend: { bottom: 45, textStyle: { color: '#FFF', fontSize: '16px' }, icon: 'circle' }, tooltip: { trigger: 'axis' }, xAxis: [ { type: 'category', axisLabel: { align: 'center', fontSize: 12, color: 'red', margin: 40, interval: 0, rotate: -45 }, axisLine: { show: true, lineStyle: { color: '#397cbc' } }, axisTick: { show: true, alignWithLabel: true }, splitLine: { show: false, lineStyle: { color: '#195384' } }, data: ['12-10', '12-11', '12-12', '12-13', '12-14', '12-15', '12-16'] } ], yAxis: [ { type: 'value', nameTextStyle: { color: '#82A9EF' }, min: 0, axisLabel: { formatter: '{value}', textStyle: { color: '#fff', fontSize: 12 } }, axisLine: { show: false, lineStyle: { color: '#27b4c2' } }, axisTick: { show: false }, splitLine: { show: true, lineStyle: { color: '#11366e' } } } ], series: [ { name: 'SO2', type: 'line', symbol: 'circle', symbolSize: 8, data: [10, 12, 11, 14, 9, 20, 10] }, { name: 'NO2', type: 'line', symbol: 'circle', symbolSize: 8, data: [20, 12, 11, 20, 20, 20, 8] }, { name: 'CO', type: 'line', symbol: 'circle', symbolSize: 8, data: [22, 13, 12, 24, 25, 20, 8] }, { name: 'O3', type: 'line', symbol: 'circle', symbolSize: 8, data: [32, 13, 62, 24, 25, 20, 8] }, { name: 'PM10', type: 'line', symbol: 'circle', symbolSize: 8, data: [52, 13, 32, 24, 25, 20, 8] }, { name: 'PM2.5', type: 'line', symbol: 'circle', symbolSize: 8, data: [62, 13, 92, 24, 25, 20, 8] } ] }