pyqt5在主界面程序中实现鼠标点击Qlineedit弹出osk虚拟机安排

可以使用QLineEdit的mousePressEvent()函数来实现鼠标点击弹出虚拟键盘的功能，具体实现可以参考以下代码：

from PyQt5.QtWidgets import QApplication, QWidget, QLineEdit
from PyQt5.QtCore import Qt
import os

class MyWidget(QWidget):
    def __init__(self):
        super().__init__()
        self.initUI()

    def initUI(self):
        self.setGeometry(300, 300, 300, 200)
        self.setWindowTitle('Virtual Keyboard')

        self.lineEdit = QLineEdit(self)
        self.lineEdit.setGeometry(50, 50, 200, 30)
        self.lineEdit.mousePressEvent = self.showVirtualKeyboard

    def showVirtualKeyboard(self, event):
        os.system('osk.exe')

if __name__ == '__main__':
    app = QApplication([])
    widget = MyWidget()
    widget.show()
    app.exec_()

当鼠标点击QLineEdit时，会调用showVirtualKeyboard()函数，该函数会执行osk.exe程序，从而弹出虚拟键盘。