var dd = []; for (var i = 0; i < 146; i++) { var node = '2017-12-10' + '\n' + i dd.push(node); } option = { tooltip: { trigger: 'item', formatter: function(val) { return '[' + val.value[0] + '] : ' + val.value[2] } }, xAxis: { type: 'category', data: dd, splitLine: { show: true, lineStyle: { color: 'rgba(40, 80, 95, 1)', } }, onZero: false, scale: true, axisLabel: { interval: 23, rotate: 90, showMaxLabel: true, } }, yAxis: { type: 'time', }, series: [{ data: [], type: 'line', }] };