05-QToolButton-菜单和弹出模式.py

import sys

from PyQt5.Qt import *

app = QApplication(sys.argv)

window = QWidget()
window.setWindowTitle("菜单和弹出模式")
window.resize(500, 500)
window.move(400, 250)

tb = QToolButton(window)
tb.setText("工具")

menu = QMenu(tb)
sub_menu = QMenu(tb)
sub_menu.setTitle("子菜单")
sub_menu.setIcon(QIcon("../Icons/plus_48px.ico"))
action = QAction(QIcon("../Icons/cross_48px.ico"), "关闭", menu)
action.triggered.connect(lambda: exit())

menu.addMenu(sub_menu)
menu.addSeparator()
menu.addAction(action)
tb.setMenu(menu)

tb.clicked.connect(lambda: print("工具按钮被点击了"))

# tb.setPopupMode(QToolButton.DelayedPopup)  # 设置菜单弹出方式 这是默认模式 长按按钮弹出
tb.setPopupMode(QToolButton.MenuButtonPopup)  # 点击后弹出（有分隔）
# tb.setPopupMode(QToolButton.InstantPopup)  # 点击后弹出（无分隔）


window.show()

sys.exit(app.exec_())