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HTML代码
<html> <head> <meta name="description" content="Sample - Line and Bar"> <meta charset="utf-8"> <title>Line chart</title> <script src="https://code.jquery.com/jquery-2.2.4.js"></script> <script src="https://cdnjs.cloudflare.com/ajax/libs/Chart.js/2.2.2/Chart.bundle.js"></script> </head> <body> <div style="width: 100%"> <canvas id="canvas" height="450" width="600"></canvas> </div> <button id="randomizeData">Randomize Data</button> </body> </html>