python pyqt5 qtwidgets text 隐藏隐藏文本控件

import sys
from PyQt5.QtWidgets import QApplication, QWidget, QLabel

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

    def initUI(self):
        label = QLabel('This is a hidden text widget', self)
        label.setStyleSheet('color: rgba(0,0,0,0)')  # 将文本颜色设置为透明
        label.move(50, 50)

        self.setGeometry(300, 300, 400, 200)
        self.setWindowTitle('Hidden Text Widget')
        self.show()

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