.com/@qcharts/core@1.0.25/dist/index.js"></script>
  <script>
    const { Chart, Line, Legend, Tooltip, Axis } = qcharts;
    const chart = new Chart({
      container: '#app'
    });

    const data = [
      { date: '05-01', catgory: '图例一', sales: 15.2 },
      { date: '05-02', catgory: '图例一', sales: 39.2 },
      { date: '05-03', catgory: '图例一', sales: 31.2 },
      { date: '05-04', catgory: '图例一', sales: 65.2 },
      { date: '05-05', catgory: '图例一', sales: 55.2 },
      { 