main.py 文件源码

def __init__(self, parent=None):
        QtWidgets.QWidget.__init__(self, parent)
        self.setAttribute(QtCore.Qt.WA_DeleteOnClose)

        self.figure = plt.figure()

        self.canvas = FigureCanvas(self.figure)

        self.toolbar = NavigationToolbar(self.canvas, self)

        self.button = QtWidgets.QPushButton("Plot")
        self.button.clicked.connect(self.plot)

        layout = QtWidgets.QVBoxLayout()
        layout.addWidget(self.toolbar)
        layout.addWidget(self.canvas)
        layout.addWidget(self.button)

        self.setLayout(layout)