用pyqt5写一个实现点击任意lineedit弹出osk.exe虚拟键盘，点击其他部分隐藏键盘的程序

可以使用以下代码实现：

import sys
from PyQt5.QtWidgets import QApplication, QWidget, QLineEdit
from PyQt5.QtCore import QProcess

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.setPlaceholderText('Click here to input')

        self.process = QProcess(self)

        self.lineedit.clicked.connect(self.showKeyboard)
        self.lineedit.editingFinished.connect(self.hideKeyboard)

    def showKeyboard(self):
        self.process.start('osk.exe')

    def hideKeyboard(self):
        self.process.kill()

if __name__ == '__main__':
    app = QApplication(sys.argv)
    widget = MyWidget()
    widget.show()
    sys.exit(app.exec_())

当点击任意 `QLineEdit` 时，会弹出虚拟键盘 `osk.exe`。当点击其他部分时，虚拟键盘会隐藏。