python PyQt5/Pyside2 按钮右击菜单实例代码

 import sys from PySide2.QtGui import * from PySide2.QtCore import * from PySide2.QtWidgets import * class MainForm(QMainWindow): def __init__(self, parent=None): super(MainForm, self).__init__(parent) # create button self.button = QPushButton("test button", self) self.button.resize(100, 30) # set button context menu policy self.button.setContextMenuPolicy(Qt.CustomContextMenu) self.button.customContextMenuRequested.connect(self.on_context_menu) # create context menu self.popMenu = QMenu(self) self.popMenu.addAction(QAction('test0', self)) self.popMenu.addAction(QAction('test1', self)) self.popMenu.addSeparator() self.popMenu.addAction(QAction('test2', self)) def on_context_menu(self, point): # show context menu self.popMenu.exec_(self.button.mapToGlobal(point)) def main(): app = QApplication(sys.argv) form = MainForm() form.show() app.exec_() if __name__ == '__main__': main()