series要设置两遍,第二个要加xAxisIndex属性.不知道有没有更好的方法来避免重复渲染 series: [ { type: 'custom', renderItem: renderItem, itemStyle: { opacity: 0.8 }, encode: { x: [1, 2], y: 0 }, data: data }, { type: 'custom', renderItem: renderItem, xAxisIndex: 1, itemStyle: { opacity: 0.8 }, encode: { x: [1, 2], y: 0 }, data: data } ]