PyQt5标签 – 添加阴影

在这篇文章中，我们将看到如何为标签添加阴影，虽然我们可以为标签创建阴影，但默认情况下，标签是没有阴影的，下面是带阴影框的标签的样子

为了做到这一点，我们必须做到以下几点

1.创建一个标签

2.为标签设置几何图形

3.创建一个QGraphicsDropShadowEffect对象

4.为该对象设置模糊半径（可选）

5.在setGraphicsEffect方法的帮助下，将该对象添加到标签中。

语法:

# creating a QGraphicsDropShadowEffect object
shadow = QGraphicsDropShadowEffect()

# setting blur radius (optional step)
shadow.setBlurRadius(15)

# adding shadow to the label
label.setGraphicsEffect(shadow)

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 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 :