使用ChartJs时条形图不堆叠

var chartConfig = {
  type: 'bar',
  data: {
    labels: ['Category 1', 'Category 2', 'Category 3'],
    datasets: [
      {
        label: 'Dataset 1',
        data: [10, 20, 30],
        backgroundColor: 'rgba(255, 99, 132, 0.2)',
        borderColor: 'rgba(255, 99, 132, 1)',
        borderWidth: 1,
        stack: true // 设置为堆叠显示
      },
      {
        label: 'Dataset 2',
        data: [5, 15, 25],
        backgroundColor: 'rgba(54, 162, 235, 0.2)',
        borderColor: 'rgba(54, 162, 235, 1)',
        borderWidth: 1,
        stack: true // 设置为堆叠显示
      }
    ]
  },
  options: {
    scales: {
      x: {
        stacked: true // 设置X轴堆叠
      },
      y: {
        stacked: true // 设置Y轴堆叠
      }
    }
  }
};

var myChart = new Chart(document.getElementById('myChart'), chartConfig);