我使用chart.js及其依赖项jQuery绘制图表。就我而言，在我的页面之一中需要2个甜甜圈图，这是我的代码：
<!DOCTYPE html>
<html lang="en">
<head>
<meta charset="UTF-8">
<meta name="viewport" content="width=device-width, initial-scale=1.0">
<meta http-equiv="X-UA-Compatible" content="ie=edge">
<script src="https://code.jquery.com/jquery-3.3.1.js"></script>
<script src="https://cdnjs.cloudflare.com/ajax/libs/Chart.js/2.7.3/Chart.js"></script>
<title>Document</title>
<script>
$(function () {
var ctx = document.getElementById("layanan").getContext('2d');
var data = {
datasets: [{
data: [10, 20, 30],
backgroundColor: [
'#3c8dbc',
'#f56954',
'#f39c12',
],
}],
labels: [
'Request',
'Layanan',
'Problem'
]
};
var myDoughnutChart = new Chart(ctx, {
type: 'doughnut',
data: data,
options: {
maintainAspectRatio: false,
legend: {
position: 'bottom',
labels: {
boxWidth: 12
}
}
}
});
var ctx_2 …