pyqt用QChart生成折线图每一个点都要用原型标注

可以使用QScatterSeries来实现每一个点用原型标注的折线图，示例代码如下：

import sys
from PyQt5.QtWidgets import QApplication, QMainWindow
from PyQt5.QtChart import QChart, QChartView, QLineSeries, QScatterSeries, QValueAxis


class MainWindow(QMainWindow):
    def __init__(self):
        super().__init__()

        # 创建 QLineSeries 和 QScatterSeries 对象
        series = QLineSeries()
        scatter_series = QScatterSeries()

        # 添加数据
        data = [(0, 1), (1, 3), (2, 2), (3, 5), (4, 7), (5, 4), (6, 6)]
        for x, y in data:
            series.append(x, y)
            scatter_series.append(x, y)

        # 设置 QScatterSeries 的样式
        scatter_series.setMarkerSize(10)
        scatter_series.setMarkerShape(QScatterSeries.MarkerShapeCircle)

        # 创建 QChart 对象，并添加 QLineSeries 和 QScatterSeries
        chart = QChart()
        chart.addSeries(series)
        chart.addSeries(scatter_series)

        # 设置 X 轴和 Y 轴范围
        axis_x = QValueAxis()
        axis_x.setRange(0, 6)
        axis_y = QValueAxis()
        axis_y.setRange(0, 8)

        # 将 X 轴和 Y 轴添加到 QChart 中
        chart.addAxis(axis_x, chart.AxisX)
        chart.addAxis(axis_y, chart.AxisY)

        # 将 QLineSeries 和 QScatterSeries 与 X 轴和 Y 轴关联
        series.attachAxis(axis_x)
        series.attachAxis(axis_y)
        scatter_series.attachAxis(axis_x)
        scatter_series.attachAxis(axis_y)

        # 创建 QChartView 对象，并将 QChart 设置为其图表
        chart_view = QChartView(chart)
        chart_view.setRenderHint(QPainter.Antialiasing)

        # 将 QChartView 添加到主窗口中
        self.setCentralWidget(chart_view)


if __name__ == '__main__':
    app = QApplication(sys.argv)
    window = MainWindow()
    window.show()
    sys.exit(app.exec_())

运行程序，可以看到生成的折线图每一个点都用原型标注。可以根据需要调整原型大小和形状。