PyQt5 - 将字体设置为不可编辑 ComboBox 的行编辑框项

在本文中，我们将看到如何更改可编辑框中项目的大小和字体。如果我们使用将 QFont 对象作为参数的setFont方法，将它与复选框对象一起使用将更改列表中所有项目的字体。

注意：当我们从组合框中获取行编辑对象时，它将使组合框出现，因此需要使行编辑不可编辑

In order to change the font and size of only the item which is in the editable box, do the following –

1. Create a combo box
2. Get the line edit(editable box) object from combo box
3. Change the font of the line edit using setFont method
4. Make the line edit non-editable(read-only)

编程需要懂一点英语

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 Sayian"]
  
        # making it editable
        self.combo_box.setEditable(True)
  
        # adding list of items to combo box
        self.combo_box.addItems(geek_list)
  
        # font
        font = QFont('Times', 10)
  
        # getting the line edit of combo box
        line_edit = self.combo_box.lineEdit()
  
        # setting line font to the line edit
        line_edit.setFont(font)
  
        # making line edit non editable
        line_edit.setReadOnly(True)
  
# create pyqt5 app
App = QApplication(sys.argv)
  
# create the instance of our Window
window = Window()
  
# start the app
sys.exit(App.exec())

输出：