PYQT5 (十八)文件拖放（drag and drop）并获取

通过重写QScrollArea 类实现的文件拖拽操作

class MyScrollWidget(QtWidgets.QScrollArea):
    def __init__(self,parent=None):
        super().__init__(parent)
        self.setAcceptDrops(True)
    def dragEnterEvent(self, event):
        if event.mimeData().hasUrls:
            event.accept()
        else:
            event.ignore()

    def dragMoveEvent(self, event):
        if event.mimeData().hasUrls:
            try:
                event.setDropAction(Qt.Qt.CopyAction)
            except Exception as e:
                print(e)
            event.accept()
        else:
            event.ignore()

    def dropEvent(self, event):
        try:
            if event.mimeData().hasUrls:
                event.setDropAction(Qt.Qt.CopyAction)
                event.accept()
                links = []
                for url in event.mimeData().urls():
                    links.append(str(url.toLocalFile()))
                print(links)
            else:
                event.ignore()
        except Exception as e:
            print(e)```