使用ChartJS叠加horizontalBar图形

<script src="https://cdn.jsdelivr.net/npm/chart.js"></script>

<canvas id="myChart"></canvas>

var ctx = document.getElementById('myChart').getContext('2d');
var myChart = new Chart(ctx, {
    type: 'horizontalBar',
    data: {
        labels: ['类别1', '类别2', '类别3'],
        datasets: [{
            label: '数据集1',
            data: [10, 20, 30],
            backgroundColor: 'rgba(255, 99, 132, 0.2)',
            borderColor: 'rgba(255, 99, 132, 1)',
            borderWidth: 1
        }, {
            label: '数据集2',
            data: [15, 25, 35],
            backgroundColor: 'rgba(54, 162, 235, 0.2)',
            borderColor: 'rgba(54, 162, 235, 1)',
            borderWidth: 1
        }]
    },
    options: {
        scales: {
            x: {
                beginAtZero: true
            },
            y: {
                beginAtZero: true
            }
        }
    }
});