在Python中，當使用PyQt5或PySide2等庫創建GUI應用程序時，可能會遇到QPushButton的快捷鍵沖突問題

1. 使用setShortcut()方法為按鈕設置一個快捷鍵。確保為每個按鈕分配一個唯一的快捷鍵，以避免沖突。例如：

from PyQt5.QtWidgets import QApplication, QWidget, QVBoxLayout, QPushButton
from PyQt5.QtCore import Qt

app = QApplication([])
window = QWidget()
layout = QVBoxLayout(window)

button1 = QPushButton("Button 1")
button1.setShortcut("Ctrl+B")
layout.addWidget(button1)

button2 = QPushButton("Button 2")
button2.setShortcut("Ctrl+C")
layout.addWidget(button2)

window.setLayout(layout)
window.show()
app.exec_()

2. 如果需要為多個按鈕分配相同的快捷鍵，可以使用QShortcut類將快捷鍵與特定操作關聯起來，而不是直接將快捷鍵分配給按鈕。例如：

from PyQt5.QtWidgets import QApplication, QWidget, QVBoxLayout, QPushButton
from PyQt5.QtCore import Qt
from PyQt5.QtGui import QKeySequence

app = QApplication([])
window = QWidget()
layout = QVBoxLayout(window)

button1 = QPushButton("Button 1")
layout.addWidget(button1)

button2 = QPushButton("Button 2")
layout.addWidget(button2)

shortcut = QShortcut(QKeySequence("Ctrl+B"), window)
shortcut.activated.connect(button1.click)
shortcut.activated.connect(button2.click)

window.setLayout(layout)
window.show()
app.exec_()

3. 如果仍然遇到快捷鍵沖突問題，可以考慮使用QAction代替QPushButton。QAction允許您更靈活地管理快捷鍵和菜單項。例如：

from PyQt5.QtWidgets import QApplication, QWidget, QVBoxLayout, QToolButton, QAction
from PyQt5.QtCore import Qt

app = QApplication([])
window = QWidget()
layout = QVBoxLayout(window)

action1 = QAction("Action 1", window)
action1.setShortcut("Ctrl+B")
action1.triggered.connect(lambda: print("Action 1 triggered"))

button1 = QToolButton()
button1.setDefaultAction(action1)
layout.addWidget(button1)

action2 = QAction("Action 2", window)
action2.setShortcut("Ctrl+C")
action2.triggered.connect(lambda: print("Action 2 triggered"))

button2 = QToolButton()
button2.setDefaultAction(action2)
layout.addWidget(button2)

window.setLayout(layout)
window.show()
app.exec_()

通過這些方法，您可以有效地解決QPushButton的快捷鍵沖突問題。