option = { tooltip: { trigger: 'axis' }, xAxis: [ { type: 'category', boundaryGap: false, data: ['1', '5', '10', '15', '20', '25', '31'] } ], yAxis: [ { name: '(单价)', type: 'value', max: 100 }, { name: '(笔数)', type: 'value', max: 100 } ], series: [ { name: '客单价', type: 'line', tooltip: { trigger: 'axis' // formatter: '{a} <br/>{b}日: {c}元' }, smooth: true, itemStyle: { normal: { color: 'rgba(2, 197, 233, 0.2)', lineStyle: { color: 'rgba(23, 107, 203, 0.2)' }, areaStyle: { color: 'rgba(223, 147, 233, 0.2)' } } }, data: [10, 12, 21, 54, 60, 80, 71] }, { name: '交易笔数', type: 'line', tooltip: { trigger: 'axis' // formatter: '{a} <br/>{b}日: {c}元' }, yAxisIndex: 1, smooth: true, itemStyle: { normal: { color: 'rgba(2, 197, 233, 0.2)', lineStyle: { color: 'rgba(2, 197, 233, 0.2)', width:0.5//设置线条粗细 }, areaStyle: { color: 'rgba(2, 197, 233, 0.2)' } } }, lineStyle: { width: 0.5 }, data: [30, 32, 61, 24, 20, 90, 20] } ] };