``java，// 柱状图，BarChart barChart = findViewById(R.id.barChart);，List entries = new ArrayList();，entries.add(new BarEntry(0, 20));，entries.add(new BarEntry(1, 40));，entries.add(new BarEntry(2, 60));，BarDataSet dataSet = new BarDataSet(entries, "Label");，BarData barData = new BarData(dataSet);，barChart.setData(barData);，barChart.invalidate(); // refresh，，// 曲线图，LineChart lineChart = findViewById(R.id.lineChart);，List lineEntries = new ArrayList();，lineEntries.add(new Entry(0, 10));，lineEntries.add(new Entry(1, 30));，lineEntries.add(new Entry(2, 50));，LineDataSet lineDataSet = new LineDataSet(lineEntries, "Label");，LineData lineData = new LineData(lineDataSet);，lineChart.setData(lineData);，lineChart.invalidate(); // refresh，``