PyQt5 QSpinBox – 获取字体信息对象

在本文中，我们将看到如何获取微调框的字体信息对象，为了设置字体使用以QFont对象为参数的setFont方法，将它与微调框对象一起使用将改变所有文本的字体.字体信息对象是一个对象，它告诉文本的属性，例如粗体或不粗体等。

In order to get the fontInfo we use fontInfo method

Syntax : spin_box.fontInfo()

Argument : It takes no argument

Return : It returns QFontInfo object

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 spin box
        self.spin = QSpinBox(self)
  
        # setting geometry to spin box
        self.spin.setGeometry(100, 100, 250, 40)
  
        # setting range to the spin box
        self.spin.setRange(0, 999999)
  
        # setting prefix to spin
        self.spin.setPrefix("Prefix ")
  
        # setting suffix to spin
        self.spin.setSuffix(" Suffix")
  
        # setting font to the spin box
        self.spin.setFont(QFont('Arial', 12))
  
        # creating a label
        label = QLabel(self)
  
        # making it multi line
        label.setWordWrap(True)
  
        # setting its geometry
        label.setGeometry(100, 200, 200, 60)
  
        # getting font info of spin box
        font_info = self.spin.fontInfo()
  
        # setting text to the label
        label.setText(str(font_info))
  
  
  
# create pyqt5 app
App = QApplication(sys.argv)
  
# create the instance of our Window
window = Window()
  
# start the app
sys.exit(App.exec())

输出 ：