1. 如何在PyQt5中为显示框添加边框？5种简单方法让你的界面更美观 2. Pyqt5显示框边框教程：轻松掌握边框样式定制技巧

To add borders to a QLabel in PyQt5, you have two main methods: ### Method 1: Using QFrame to Create Borders 1. **Import Libraries:** ```python from PyQt5.QtWidgets import QApplication, QWidget, QVBoxLayout, QLabel, QFrame import sys ``` 2. **Create a Custom Class Inheriting from QWidget:** ```python class MainWindow(QWidget): def __init__(self): super().__init__() # Set window title and size self.setWindowTitle('PyQt5 QLabel with Border') self.resize(300, 200) # Create a vertical layout layout = QVBoxLayout() # Create QLabel and set text label = QLabel('Hello, PyQt5!') # Create QFrame as border frame = QFrame() frame.setFrameShape(QFrame.Box) # Set border shape frame.setFrameShadow(QFrame.Sunken) # Set border shadow # Add QLabel to QFrame frame.setLayout(layout) frame.addWidget(label) # Add QFrame to layout layout.addWidget(frame) # Set window layout self.setLayout(layout) ``` 3. **Create Application Instance and Run:** ```python if __name__ == '__main__': app = QApplication(sys.argv) window = MainWindow() window.show() sys.exit(app.exec_()) ``` ### Method 2: Using QLabel's Stylesheet (QSS) to Add Borders 1. **Import Libraries:** ```python from PyQt5.QtWidgets import QApplication, QWidget, QVBoxLayout, QLabel from PyQt5.QtCore import Qt import sys ``` 2. **Create a Custom Class Inheriting from QWidget:** ```python class MainWindow(QWidget): def __init__(self): super().__init__() # Set window title and size self.setWindowTitle('PyQt5 QLabel with Border') self.resize(300, 200) # Create a vertical layout layout = QVBoxLayout() # Create QLabel and set text label = QLabel('Hello, PyQt5!') # Set QLabel's stylesheet to add border label.setStyleSheet("border: 2px solid red;") # Add QLabel to layout layout.addWidget(label) # Set window layout self.setLayout(layout) ``` 3. **Create Application Instance and Run:** ```python if __name__ == '__main__': app = QApplication(sys.argv) window = MainWindow() window.show() sys.exit(app.exec_()) ``` Both methods achieve the effect of adding borders to a QLabel in PyQt5. If you have any further questions, feel free to ask!

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