Chart.js标签-水平条形图的Y轴上需要两个标签

// 引入Chart.js库
import Chart from 'chart.js';

// 获取画布元素
const canvas = document.getElementById('myChart');

// 创建条形图
const myChart = new Chart(canvas, {
  type: 'horizontalBar',
  data: {
    labels: ['产品A', '产品B', '产品C'],
    datasets: [{
      label: '销售额',
      data: [500, 800, 700],
      backgroundColor: 'rgba(54, 162, 235, 0.5)'
    }]
  },
  options: {
    scales: {
      x: {
        beginAtZero: true
      },
      y: {
        beginAtZero: true,
        ticks: {
          callback: function(value, index) {
            if (index === 0) {
              return value + ' (销售额)';
            } else {
              return value;
            }
          }
        }
      }
    }
  }
});