PyQt5 标签 - 将模糊半径设置为阴影

在本文中，我们将看到如何将模糊半径设置为标签的阴影。模糊半径，如果设置为0阴影会很锐利，数字越大，越模糊，默认模糊半径为0。

In order to set blur radius to the shadow of label with the help of setBlurRadius method

Syntax : shadow.setBlurRadius(n)
Here shadow is the QGraphicsDropShadowEffect object

Argument : It takes float as argument

Return : None

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 background color of window
        # self.setStyleSheet("background-color : black;")
  
        # 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 label
        label = QLabel("Label", self)
  
        # setting alignment
        label.setAlignment(Qt.AlignCenter)
  
        # setting geometry to the label
        label.setGeometry(200, 150, 200, 80)
  
        # setting border
        label.setStyleSheet("border : 10px solid black")
  
        # creating a QGraphicsDropShadowEffect object
        shadow = QGraphicsDropShadowEffect()
  
        # setting blur radius
        shadow.setBlurRadius(15)
  
        # adding shadow to the label
        label.setGraphicsEffect(shadow)
  
# create pyqt5 app
App = QApplication(sys.argv)
  
# create the instance of our Window
window = Window()
  
# start the app
sys.exit(App.exec())

输出 ：