PySide2(PyQt5) 实现tab切换及方法详解（不定时更新）

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• tab的实现用到的是QTabWidget控件，以下仅做简单的演示

• 源码：

    import sys
    from PySide2 import QtCore, QtGui, QtWidgets
  
    class MainWindow():
        def __init__(self):
            self.window = QtWidgets.QMainWindow()
            self.initSize(0.6)
  
            self.mainWidget = QtWidgets.QWidget()
            self.mainLayout = QtWidgets.QVBoxLayout()
            self.mainWidget.setLayout(self.mainLayout)
            self.window.setCentralWidget(self.mainWidget)
            self.mainLayout.addWidget(self.loadTabWidgets())
  
        def initSize(self, rate):
            desktop = QtWidgets.QApplication.desktop()
            self.screenWidth = desktop.width() * rate
            self.screenHeight = desktop.height() * rate
            print("screen width is %d height is %d"%(self.screenWidth, self.screenHeight))
            self.window.resize(self.screenWidth, self.screenHeight)
  
        def loadTabWidgets(self):
            tabWidgets = QtWidgets.QTabWidget()
            widget = QtWidgets.QWidget()
            layout = QtWidgets.QVBoxLayout()
            label = QtWidgets.QLabel()
            label.setText("test one QVBoxLayout item one")
            layout.addWidget(label)
            label = QtWidgets.QLabel()
            label.setText("test one QVBoxLayout item one")
            layout.addWidget(label)
            label = QtWidgets.QLabel()
            label.setText("test one QVBoxLayout item one")
            layout.addWidget(label)
            widget.setLayout(layout)
            tabWidgets.addTab(widget, "test one")
  
            label = QtWidgets.QLabel()
            label.setText("test tab two")
            tabWidgets.addTab(label, "test two")
            tabWidgets.show()
            return tabWidgets
  
        def show(self):
            self.window.show()
  
  
    if __name__ == '__main__':
  
        app = QtWidgets.QApplication(sys.argv)
        mainWin = MainWindow()
        mainWin.show()
        sys.exit(app.exec_())
  

方法