PyQt5 – 如何访问组合框描述 |可访问的描述方法

在本文中，我们将了解如何访问组合框的描述。描述是关于组合框的详细信息，它讲述了功能用例和其他主要信息，以了解组合框的工作，为了给组合框设置描述，我们使用setAccessibleDescription方法。

为了访问组合框的描述，我们使用accessibleDescription方法。

Syntax : combo_box.accessibleDescription()

Argument : It takes no argument

Return : It returns string

注意：如果没有为组合框设置描述，那么这将返回空字符串。

下面是实现

# importing libraries
from PyQt5.QtWidgets import * 
from PyQt5 import QtCore, QtGui
from PyQt5.QtGui import * 
from PyQt5.QtCore import * 
import sys
  
  
class Window(QMainWindow):
  
    def __init__(self):
        super().__init__()
  
        # setting title
        self.setWindowTitle("Python ")
  
        # setting geometry
        self.setGeometry(100, 100, 600, 400)
  
        # calling method
        self.UiComponents()
  
        # showing all the widgets
        self.show()
  
    # method for widgets
    def UiComponents(self):
  
        # creating a combo box widget
        self.combo_box = QComboBox(self)
  
        # setting geometry of combo box
        self.combo_box.setGeometry(200, 150, 150, 30)
  
        # geek list
        geek_list = ["Sayian", "Super Saiyan", "Super Sayian 2", "Super Sayian B"]
  
        # making it editable
        self.combo_box.setEditable(True)
  
        # adding list of items to combo box
        self.combo_box.addItems(geek_list)
  
        # description text
        text = " This is a description of the combo box "
  
        # setting description to the combo box
        self.combo_box.setAccessibleDescription(text)
  
        # getting the description
        get_text = self.combo_box.accessibleDescription()
  
        # creating label to show the description
        label = QLabel("Description : " + str(get_text), self)
  
        # setting geometry of the label
        label.setGeometry(150, 100, 300, 30)
  
  
# create pyqt5 app
App = QApplication(sys.argv)
  
# create the instance of our Window
window = Window()
  
# start the app
sys.exit(App.exec())

输出 ：