from PyQt5.QtWidgets import QFrame, QWidget, QVBoxLayout
from PyQt5.QtGui import QPainter
from PyQt5.QtChart import QChart, QChartView


class YourClassName(QWidget):
    def __init__(self):
        super().__init__()

        self.plot_qchart = QChart()
        self.plot_view = QChartView()

        # 设置图表到视图
        self.plot_view.setChart(self.plot_qchart)

        # 开启抗锯齿
        self.plot_view.setRenderHint(QPainter.Antialiasing)

        # 设置矩形橡皮筋
        self.plot_view.setRubberBand(QChartView.RectangleRubberBand)

        # 移除外部边框
        self.plot_view.setFrameShape(QFrame.NoFrame)

        # 使用样式表进一步移除边框
        self.plot_view.setStyleSheet("border: none;")

        self.plot_qchart.setBackgroundRoundness(0)
        self.plot_qchart.layout().setContentsMargins(0, 0, 0, 0)


        # 将 QChartView 添加到布局中（如果需要）
        layout = QVBoxLayout(self)
        layout.addWidget(self.plot_view)


# 创建并显示窗口
if __name__ == "__main__":
    from PyQt5.QtWidgets import QApplication


    app = QApplication([])
    window = YourClassName()
    window.show()
    app.exec_()