PyQt5 QSpinBox – 设置值
在这篇文章中,我们将看到如何为旋转框设置值。默认情况下,它的值是0,尽管用户可以在任何时候改变它。为了以编程方式改变其值,我们将使用setValue方法
语法: spin.setValue(n)
参数: 它需要整数作为参数。
返回 :无
以下是实现方法
# 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, 100, 40)
# setting value to the spin box
self.spin.setValue(20)
# create pyqt5 app
App = QApplication(sys.argv)
# create the instance of our Window
window = Window()
window.show()
# start the app
sys.exit(App.exec())
输出: