PyQt5 – 如何向 ComboBox 添加项目？

在本文中，我们将了解如何将项目添加到组合框中。默认情况下，组合框没有项目，以便将项目添加到组合框中，我们使用addItem方法。然后，组合框将允许我们从添加的项目中进行选择。

Syntax : combo_box.addItem(item)

Argument : It takes string as argument

Action performed : It will add the item to the drop down list of combo box

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
        combo_box = QComboBox(self)
  
        # setting geometry of combo box
        combo_box.setGeometry(200, 150, 120, 40)
  
        # adding items to combo box
        # adding Geek to the combobox
        combo_box.addItem("Geek")
        # adding Super Geek to the combobox
        combo_box.addItem("Super Geek")
        # adding Ultra Geek to the combobox
        combo_box.addItem("Ultra Geek")
  
# create pyqt5 app
App = QApplication(sys.argv)
  
# create the instance of our Window
window = Window()
  
# start the app
sys.exit(App.exec())

输出 ：