没有清除所有输入的方法.一个简单的解决方案是使用 findChildren 方法遍历小部件:

There is no method that cleans all the inputs. A simple solution is to iterate over the widgets using the findChildren method:

for widget in parent_widget.findChildren([QLineEdit, QComboBox]):
    if hasattr(widget, "clear") and callable(widget.clear):
        widget.clear()

或

for widget in parent_widget.findChildren(QWidget):
    if not isinstance(widget, QLabel) and hasattr(widget, "clear") and callable(widget.clear):
        widget.clear()