是否在chart.js中修改条形图Y轴的高度？

var ctx = document.getElementById('myChart').getContext('2d');
var myChart = new Chart(ctx, {
    type: 'bar',
    data: {
        labels: ['Red', 'Blue', 'Yellow', 'Green', 'Purple', 'Orange'],
        datasets: [{
            label: '# of Votes',
            data: [12, 19, 3, 5, 2, 3],
            backgroundColor: 'rgba(255, 99, 132, 0.2)',
            borderColor: 'rgba(255, 99, 132, 1)',
            borderWidth: 1
        }]
    },
    options: {
        scales: {
            y: {
                beginAtZero: true,
                max: 30 // 设置Y轴的最大值
            },
            x: {
                beginAtZero: true
            }
        },
        plugins: {
            legend: {
                display: false
            }
        }
    }
});