PyQt5 – 如何访问组合框描述 | accessibleDescription方法

在这篇文章中，我们将看到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情况，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。

语法： combo_box.accessibleDescription()

参数： 它不需要参数

返回： 它返回字符串

注意： 如果没有给组合框设置描述，那么它将返回空字符串。以下是实现方法

# 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 Sayian", "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: