option = { title: { text: '多层轴标记辅助轴 index 换算' }, grid: { top: '30%', right: '15%', bottom: '40%' }, xAxis: [{ name: '数据轴\nindex', data: ['0', '1', '2', '3', '4', '5', '6'] }, { name: '轴刻度\nindex', data: ['0', '1', '2', '3', '4', '5', '6', '7'], boundaryGap: false }, { name: '辅助轴index\n刻度/标签', data: ['0', '1', '2', '3', '4', '5', '6', '7', '8', '9', '10', '11', '12', '13', '14'], splitLine: { show: true }, boundaryGap: false, offset: 50 }], yAxis: { splitLine: { show: false } }, series: [{ type: 'bar', xAxisIndex: 0, data: [220, 182, 191, 234, 290, 330, 310] }] };