PyQt5 – 如何在 ComboBox 的项目之间添加分隔符

在本文中，我们将看到如何在组合框中的所需索引处添加分隔符。默认情况下没有分隔符。分隔符是两个项目之间的黑线，为了添加分隔符，我们使用insertSeparator方法。下面是带有分隔符的组合框项目的表示，如下所示 -

Syntax : combo_box.insertSeparator(index)

Argument : It takes integer as argument i.e index

Action performed : It will add separator at the given index

注意：如果索引等于或大于项目总数，则将新项目附加到现有项目列表中。如果索引为零或负数，则新项目将附加到现有项目列表中。

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 = ["Sayian", "Super Saiyan", "Super Sayian 2", "Super Sayaian Blue"]
  
        # adding list of items to combo box
        self.combo_box.addItems(geek_list)
  
        # index
        index = 3
  
        # adding separator at given index
        self.combo_box.insertSeparator(index)
  
  
# create pyqt5 app
App = QApplication(sys.argv)
  
# create the instance of our Window
window = Window()
  
# start the app
sys.exit(App.exec())

输出 ：