option = { legend: { data: ['线一', '线二'], left: 10, }, xAxis: { type: 'category', boundaryGap: false, data: [1, 2, 3, 4, 5, 6, 7], }, yAxis: { type: 'value', }, series: [ { name: '线一', data: [720, 832, 801, 834, 1190, 1230, 1220], type: 'line', }, { name: '线二', data: [820, 932, 901, 934, 1290, 1330, 1320], type: 'line', markLine: { symbol: 'none', silent: true, itemStyle: { normal: { borderWidth: 1, lineStyle: { type: 'dashed', color: '#ccc ', width: 1, }, label: { show: true, position: 'end', formatter: '标准线', color: '#f00', }, }, }, data: [ //配置线端起始点 [ { coord: [2, 0], }, { coord: [2, 1500], }, ], ], }, }, ], };