PyQt5 QSpinBox – 检查箭头按钮是否被移除

在本文中，我们将了解如何检查旋转框箭头按钮是否被移除，基本上旋转框中有两个按钮，一个用于增加值，第二个用于减少值。为了删除我们使用的按钮setButtonSymbols方法。

为了检查，我们将使用buttonSymbols方法。

Syntax : spin_box.buttonSymbols()

Argument : It takes no argument

Return : It returns QAbstractSpinBox object but its corresponding value is 2 if buttons are removed

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, 150, 40)
  
        # removing the buttons
        self.spin.setButtonSymbols(QAbstractSpinBox.NoButtons)
  
        # creating label
        label = QLabel(self)
  
        # setting geometry to the label
        label.setGeometry(100, 160, 200, 30)
  
        # getting the button symbol
        symbol = self.spin.buttonSymbols()
  
        # checking if arrow button is removed
        if symbol == 2:
            text ="No Arrow buttons"
  
        else:
            text =" Arrow buttons"
  
        # setting text to the label
        label.setText(text)
  
# create pyqt5 app
App = QApplication(sys.argv)
  
# create the instance of our Window
window = Window()
  
# start the app
sys.exit(App.exec())

输出 ：