PyQt5 - 增加 ComboBox 项目之间的分隔符大小

在本文中，我们将看到如何在组合框中的所需索引处增加分隔符的大小。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外观 -

为了增加分隔符的大小，我们必须多次使用 insertSeparator 方法，索引值等于或大于所需索引，这将增加给定索引的分隔符大小。

Syntax : 
combo_box.insertSeparator(index) 
combo_box.insertSeparator(index)
Argument : It takes integer as argument i.e index
Action performed : It will add separator at the given index and using same statement with same index will increase the size of separator 
 

注意：索引值必须大于或等于所需索引。
下面是实现——

Python3

# 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"]
 
        # 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)
 
        # increasing the size of separator
        self.combo_box.insertSeparator(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 ：