PyQt – 标签的 setVisible 方法

在本文中，我们将看到setVisible ，它类似于hide()方法。 setVisible()方法将bool作为参数并设置标签的可见性。默认情况下，它设置为 True。

Syntax : label.setVisible(True)

Argument : It takes bool as argument.

Action performed.
If False is passed to it, label will no be visible
It True is passed to it, label will be visible

代码 ：

# importing the required libraries
  
from PyQt5.QtCore import * 
from PyQt5.QtGui import * 
from PyQt5.QtWidgets import * 
import sys
  
  
class Window(QMainWindow):
    def __init__(self):
        super().__init__()
  
  
        # set the title
        self.setWindowTitle("Python")
  
        # setting geometry
        self.setGeometry(100, 100, 600, 400)
        # creating a label widget
        self.label_1 = QLabel("Label", self)
  
        # moving position
        self.label_1.move(0, 0)
  
        # setting up the border
        self.label_1.setStyleSheet("border :3px solid black;")
  
        # setting visibility status
        self.label_1.setVisible(False)
  
        # creating a label widget
        self.label_2 = QLabel("Above there a Label", self)
  
        # moving position
        self.label_2.move(0, 50)
  
        # adjust size
        self.label_2.adjustSize()
  
        # show all the widgets
        self.show()
  
  
# create pyqt5 app
App = QApplication(sys.argv)
  
# create the instance of our Window
window = Window()
  
# start the app
sys.exit(App.exec())

输出 ：