import sys
from PyQt5.QtWidgets import (QApplication, QWidget, QHBoxLayout,
                             QFrame, QSplitter)
from PyQt5.QtCore import Qt


class Example(QWidget):

    def __init__(self):
        super().__init__()

        hbox = QHBoxLayout(self)

        topleft = QFrame(self)
        topleft.setFrameShape(QFrame.StyledPanel)  # 设置边框

        topright = QFrame(self)
        topright.setFrameShape(QFrame.StyledPanel)  # 设置边框



        splitter1 = QSplitter(Qt.Horizontal)
        splitter1.addWidget(topleft)
        splitter1.setSizes([100, ])  # 设置分隔条位置
        splitter1.addWidget(topright)


        hbox.addWidget(splitter1)
        self.setLayout(hbox)

        self.setGeometry(600, 600, 600, 600)
        self.setWindowTitle('窗口分隔')
        self.show()


if __name__ == '__main__':
    app = QApplication(sys.argv)
    ex = Example()
    sys.exit(app.exec_())