PyQt5 – 管状单选按钮

在这篇文章中，我们将看到如何创建一个管状的单选按钮。默认情况下，单选按钮的形状是矩形的。下面是普通边框的单选按钮与管状单选按钮的对比。

为了做到这一点，我们必须做以下 工作。

1.创建一个单选按钮

2.设置宽度大于单选按钮的高度

3.给它添加边框

4.设置单选按钮左边的半径为高度的一半。

为单选按钮 添加边框和半径的样式表代码 —

QRadioButton
{
border : 3px solid black;
border-top-left-radius : 20px;
border-bottom-left-radius : 20px;
}

以下是实施情况。

# 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
        self.radio_button = QRadioButton(self)
  
        # setting geometry of radio button
        self.radio_button.setGeometry(200, 150, 120, 40)
  
        # setting text to radio button
        self.radio_button.setText("Radio Button")
  
        # changing style sheet code of radio button
        # setting border to radio button and changing 
        # radius to half of height only to the left side
        self.radio_button.setStyleSheet("QRadioButton"
                                        "{"
                                        "border : 3px solid black;"
                                        "border-top-left-radius : 20px;"
                                        "border-bottom-left-radius : 20px;"
                                        "}")
  
  
# create pyqt5 app
App = QApplication(sys.argv)
  
# create the instance of our Window
window = Window()
  
# start the app
sys.exit(App.exec())

输出 :