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如何在 chart.js 图表中添加按钮？我想创建一个向下钻取的饼图。使用图表 onClick 函数，下钻效果实际上非常简单。但我想添加一个按钮以转到画布的顶层。我不想将它放在画布之外我发现了一个不同图表库的类似示例。
https://www.highcharts.com/demo/pie-drilldown