jquery 图表

<!DOCTYPE html>
<html lang="en">
<head>
    <meta charset="UTF-8">
    <title>jQuery Chart Example</title>
    <script src="https://code.jquery.com/jquery-3.6.0.min.js"></script>
    <script src="https://cdn.jsdelivr.net/npm/chart.js"></script>
</head>
<body>

<canvas id="myChart" width="400" height="200"></canvas>

<script>
$(document).ready(function() {
    var ctx = document.getElementById('myChart').getContext('2d');
    var myChart = new Chart(ctx, {
        type: 'line',
        data: {
            labels: ['January', 'February', 'March', 'April', 'May', 'June', 'July'],
            datasets: [{
                label: 'My First dataset',
                backgroundColor: 'rgb(255, 99, 132)',
                borderColor: 'rgb(255, 99, 132)',
                data: [0, 10, 5, 2, 20, 30, 45]
            }]
        },
        options: {}
    });
});
</script>

</body>
</html>

myChart.data.datasets[0].data = [5, 15, 10, 7, 25, 35, 50];
myChart.update();