在PyQt5中将图表另存为图像

from PyQt5.QtChart import QChartView, QChart
from PyQt5.QtGui import QPixmap
from PyQt5.QtWidgets import QApplication

chart = QChart()
series = QLineSeries()
series.append(0, 6)
series.append(2, 4)
series.append(3, 8)
series.append(7, 4)
series.append(10, 5)
chart.addSeries(series)

chart_view = QChartView(chart)
chart_view.setRenderHint(QPainter.Antialiasing)

app = QApplication([])
chart_view.show()
app.exec_()

pixmap = QPixmap(chart_view.size())
chart_view.render(pixmap)
pixmap.save("chart.png")