PyQt5 - 检查单选按钮的程序

在本文中，我们将看到如何将单选按钮设置为选中状态。单选按钮默认有选中和未选中两种状态，选中状态指示器为填充状态，未选中状态指示器为空。

为了检查程序，我们将使用setChecked方法。

Syntax : radio_button.setChecked(True)

Argument : It takes bool as argument.

Action performed : It will make the radio button checked.

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 radio button
        radio_button = QRadioButton(self)
  
        # setting geometry of radio button
        radio_button.setGeometry(200, 150, 120, 40)
  
        # setting text to radio button
        radio_button.setText("GEEK Radio ")
  
        # setting radio button checked
        radio_button.setChecked(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 ：