案例1
| <!DOCTYPE html> |
| <html lang="en"> |
| <head> |
| <meta charset="UTF-8"> |
| <meta name="viewport" content="width=device-width, initial-scale=1.0"> |
| <title>Document</title> |
| <style> |
| .d1{ |
| width: 400px; |
| height: 350px; |
| } |
| </style> |
| </head> |
| <body> |
| <div class="d1"> |
| <canvas id="myChart"></canvas> |
| </div> |
| |
| <script src="https://cdn.jsdelivr.net/npm/chart.js"></script> |
| |
| <script> |
| const ctx = document.getElementById('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], |
| borderWidth: 1 |
| }] |
| }, |
| options: { |
| scales: { |
| y: { |
| beginAtZero: true |
| } |
| } |
| } |
| }); |
| </script> |
| </body> |
| </html> |
- 效果图

案例2
| <!DOCTYPE html> |
| <html> |
| <head> |
| <meta charset="utf-8"> |
| <script src="https://cdn.staticfile.org/Chart.js/3.9.1/chart.js"></script> |
| </head> |
| <body> |
| |
| <canvas id="myChart" width="400" height="400"></canvas> |
| <script> |
| const ctx = document.getElementById('myChart'); |
| const data = { |
| labels: [ |
| 'Red', |
| 'Green', |
| 'Yellow', |
| 'Grey', |
| 'Blue' |
| ], |
| datasets: [{ |
| label: '极地图实例', |
| data: [11, 16, 7, 3, 14], |
| backgroundColor: [ |
| 'rgb(255, 99, 132)', |
| 'rgb(75, 192, 192)', |
| 'rgb(255, 205, 86)', |
| 'rgb(201, 203, 207)', |
| 'rgb(54, 162, 235)' |
| ] |
| }] |
| }; |
| const config = { |
| type: 'polarArea', |
| data: data, |
| options: { |
| responsive: true, |
| maintainAspectRatio: false, |
| } |
| }; |
| const myChart = new Chart(ctx, config); |
| </script> |
| |
| </body> |
| </html> |
- 效果图

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