grid 怎么支持多个x，y轴？echarts 折线配置项内容和展示

      option = {
      legend: {},
      grid: [
        {
          x: 80,
          y: 80,
          width: 200,
          height: 200,
          show: true,
        },
        {
          x: 350,
          y: 80,
          width: 200,
          height: 200,
          show: true,
        },
        {
          x: 80,
          y: 380,
          width: 200,
          height: 200,
          show: true,
        },
        {
          x: 350,
          y: 380,
          width: 200,
          height: 200,
          show: true,
        },
        {
          x: 80,
          y: 680,
          width: 200,
          height: 200,
          show: true,
        },
      ],
      xAxis: [
        {
          type: 'category',
          boundaryGap: false,
          gridIndex: 0, // 这个值很重要，用于指定图表组件属于哪个画布
          data: ['Mon', 'Tue', 'Wed', 'Thu', 'Fri', 'Sat', 'Sun'],
        },
        {
          type: 'category',
          gridIndex: 1,
          boundaryGap: false,
          data: ['Mon', 'Tue', 'Wed', 'Thu', 'Fri', 'Sat', 'Sun'],
        },
        {
          type: 'category',
          boundaryGap: false,
          gridIndex: 2, // 这个值很重要，用于指定图表组件属于哪个画布
          data: ['Mon', 'Tue', 'Wed', 'Thu', 'Fri', 'Sat', 'Sun'],
        },
        {
          type: 'category',
          boundaryGap: false,
          gridIndex: 3,
          data: ['Mon', 'Tue', 'Wed', 'Thu', 'Fri', 'Sat', 'Sun'],
        },
        {
          type: 'category',
          boundaryGap: false,
          gridIndex: 4, // 这个值很重要，用于指定图表组件属于哪个画布
          data: ['Mon', 'Tue', 'Wed', 'Thu', 'Fri', 'Sat', 'Sun'],
        },
      ],
      yAxis: [
        { gridIndex: 0 },
        { gridIndex: 1 },
        { gridIndex: 2 },
        { gridIndex: 3 },
        { gridIndex: 4 },
      ],
      series: [
        {
          name: 'SO2',
          xAxisIndex: 0,
          yAxisIndex: 0,
          data: [120, 200, 150, 80, 70, 110, 130],
          type: 'line',
        },
        {
          name: 'CO',
          xAxisIndex: 0,
          yAxisIndex: 0,
          data: [220, 300, 250, 180, 170, 210, 230],
          type: 'line',
        },
        {
          name: 'SO2',
          xAxisIndex: 1,
          yAxisIndex: 1,
          data: [120, 200, 150, 80, 70],
          type: 'line',
        },
        {
          name: 'CO',
          xAxisIndex: 1,
          yAxisIndex: 1,
          data: [220, 300, 50, 180, 70],
          type: 'line',
        },
        {
          name: 'SO2',
          xAxisIndex: 2,
          yAxisIndex: 2,
          data: [120, 200, 150, 80, 70, 110, 130],
          type: 'line',
        },
        {
          name: 'CO',
          xAxisIndex: 2,
          yAxisIndex: 2,
          data: [220, 300, 50, 180, 70],
          type: 'line',
        },
        {
          name: 'SO2',
          xAxisIndex: 3,
          yAxisIndex: 3,
          data: [120, 200, 150, 80, 70, 110, 130],
          type: 'line',
        },
        {
          name: 'CO',
          xAxisIndex: 3,
          yAxisIndex: 3,
          data: [220, 300, 50, 180, 70],
          type: 'line',
        },
        {
          name: 'SO2',
          xAxisIndex: 4,
          yAxisIndex: 4,
          data: [120, 200, 150, 80, 70, 110, 130],
          type: 'line',
        },
        {
          name: 'CO',
          xAxisIndex: 4,
          yAxisIndex: 4,
          data: [220, 300, 50, 180, 70],
          type: 'line',
        },
      ],
    }