PyQt5 QSpinBox – 交换字体
在这篇文章中,我们将看到如何交换旋转盒的字体,交换旋转盒的字体意味着用其他QFont对象替换旋转盒的QFont对象。我们可以在字体方法的帮助下获得旋转盒的QFont对象。
为了做到这一点,我们使用旋转盒的QFont对象的swap方法。
语法: font.swap(another_font)
参数: 它需要QFont对象作为参数。
返回: 它返回无。
下面是实现方法
# 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")
# getting font of the spin box
font = self.spin.font()
# another font
another_font = QFont("Times", 12)
# swapping current font with another font
font.swap(another_font)
# setting back this font to the spin box
self.spin.setFont(font)
# create pyqt5 app
App = QApplication(sys.argv)
# create the instance of our Window
window = Window()
# start the app
sys.exit(App.exec())
输出: