PyQt5 - 在 ComboBox 中的给定索引处添加项目

在本文中，我们将看到如何在给定索引处的组合框中添加项目。我们知道我们可以在addItem和addItems方法的帮助下添加项目，但是项目只在最后添加，为了在给定索引处添加项目，我们使用insertItem方法。

Syntax : combo_box.insertItem(index, item)

Argument : It takes two argument one is integer i.e index and second is string i.e item

Action performed : It will add item at the given index

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, 120, 30)
  
        # geek list
        geek_list = ["Geek", "Geeky Geek", "Legend Geek", "Ultra Legend Geek"]
  
        # adding list of items to combo box
        self.combo_box.addItems(geek_list)
  
        # adding item at index 0
        self.combo_box.insertItem(0, "New ")
  
# create pyqt5 app
App = QApplication(sys.argv)
  
# create the instance of our Window
window = Window()
  
# start the app
sys.exit(App.exec())

输出 ：