date: '05-06', catgory: '图例一', sales: 75.2 },
      { date: '05-07', catgory: '图例一', sales: 95.2 },
      { date: '05-08', catgory: '图例一', sales: 100 }
    ];

    chart.source(data, {
      row: 'catgory',
      value: 'sales',
      // text: 'date'
    });

    const line = new Line();
    chart.append([line])
  </script>
</body>
</html>