PyQt5 - 如何使可编辑组合框的文本居中对齐

在本文中，我们将了解如何将组合框的文本居中对齐。默认情况下，组合框文本是左对齐的，组合框本身没有任何对齐方法。

In order to center align the text we have to do the following –

1. Create a combo box
2. Make combo box editable (optional)
3. Make line edit object from combo box
4. Center align the line edit

编程需要懂一点英语

语法：用于创建行编辑并设置其对齐方式

# getting the line edit of combo box
line_edit = self.combo_box.lineEdit()

# setting line edit alignment to the center
line_edit.setAlignment(Qt.AlignCenter)

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, 150, 30)
  
        # geek list
        geek_list = ["Sayian", "Super Saiyan", "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)
  
        # getting the line edit of combo box
        line_edit = self.combo_box.lineEdit()
  
        # setting line edit alignment to the center
        line_edit.setAlignment(Qt.AlignCenter)
  
  
# create pyqt5 app
App = QApplication(sys.argv)
  
# create the instance of our Window
window = Window()
  
# start the app
sys.exit(App.exec())

输出：