如何从ajax调用更新数据(chart.js)

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

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

// 使用ajax调用更新数据
$.ajax({
  url: 'your_api_url',
  method: 'GET',
  success: function(response) {
    // 处理返回的数据
    var labels = response.labels;
    var data = response.data;

    // 创建chart.js实例
    var ctx = document.getElementById('myChart').getContext('2d');
    var myChart = new Chart(ctx, {
      type: 'bar',
      data: {
        labels: labels,
        datasets: [{
          label: 'Data',
          data: data,
          backgroundColor: 'rgba(0, 123, 255, 0.5)',
          borderColor: 'rgba(0, 123, 255, 1)',
          borderWidth: 1
        }]
      },
      options: {
        responsive: true,
        scales: {
          y: {
            beginAtZero: true
          }
        }
      }
    });

    // 更新图表数据
    myChart.data.labels = labels;
    myChart.data.datasets[0].data = data;
    myChart.update();
  },
  error: function(error) {
    console.log(error);
  }
});