PyQt5 – 如何访问标签的内容？

我们可以使用QLabel()方法创建标签，并使用setText()方法设置内容。在本文中，我们将看到如何访问标签的内容，为此我们将使用text()方法。

Syntax : label.text()

Argument : It takes no argument.

Return : It returns a string.

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("old label ", self)
  
        # setting up the border and background color
        self.label_1.setStyleSheet("border :3px solid black; 
                                    background : pink")
  
        # getting the content of label
        content = self.label_1.text()
          
        # printing the content of label
        print(content)
  
        # moving the label
        self.label_1.move(10, 100)
  
        # creating a new label widget
        self.label_2 = QLabel("new Label ", self)
  
        # setting up the border and background color
        self.label_2.setStyleSheet("border :3px solid black; 
                                    background : green")
  
        # moving the label
        self.label_2.move(110, 110)
          
        # printing the content of label
        print(self.label_2.text())
  
        # 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 ：

old label 
new Label