//data var data = []; for (var n = 0; n < 7; n++) { data.push((45 + Math.random() * 10)) } //option option = { title: { text: 'SPC' }, tooltip : { trigger: 'axis' }, xAxis: { data: ['8:00', '9:00', '10:00', '11:00', '12:00', '13:00', '14:00'] }, yAxis: { min: 30, max: 70 }, series: [{ type: 'line', data:data, markLine: { data: [ { name: 'Y 轴值为 60 的水平线', yAxis: 60 }, { name: 'Y 轴值为 50 的水平线', yAxis: 50 }, { name: 'Y 轴值为 40 的水平线', yAxis: 40 } ] } }] };