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App Inventor 2 动态图表教程 - ECharts与Chart组件实现实时曲线图 · App Inventor 2 中文网
...2D1.AddEntry(join("T", 数据计数), 随机值)
// 限制显示最近20个点
if (数据计数 > 20) {
ChartData2D1.RemoveEntry("0", "0") // dummy
}
}
Chart组件属性
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图表类型（Line/Bar...
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Support
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