麻烦大佬帮忙看一下热键的问题，想send order直接用热键，不点鼠标。不知道为什么报错。

在vnpy/trader/ui/widget的
class TradingWidget(QtWidgets.QWidget):
def send_order(self) -> None:
下面加了
keyboard.add_hotkey('z+x', send_order, suppress = False)

报错：
Traceback (most recent call last):
File "C:\veighna_studio\lib\threading.py", line 1016, in _bootstrap_inner
self.run()
File "C:\veighna_studio\lib\threading.py", line 953, in run
self._target(*self._args, **self._kwargs)
File "C:\veighna_studio\lib\site-packages\keyboard_generic.py", line 58, in process
if self.pre_process_event(event):
File "C:\veighna_studio\lib\site-packages\keyboard__init.py", line 218, in pre_process_event
callback(event)
File "C:\veighna_studio\lib\site-packages\keyboard\init__.py", line 649, in <lambda>
handler = lambda e: (event_type == KEY_DOWN and e.event_type == KEY_UP and e.scan_code in _logically_pressed_keys) or (event_type == e.event_type and callback())
TypeError: TradingWidget.send_order() missing 1 required positional argument: 'self'

send_order要传参的，你没传TradingWidget实例self吧

xiaohe wrote:

send_order要传参的，你没传TradingWidget实例self吧

多谢大神。实在不好意思我太菜了，我修改了一下：
def send_order(self) -> None:
...
self.send_order()
tw = TradingWidget()
send_order = tw.send_order（）
keyboard.add_hotkey('alt + 7', send_order, suppress = False)

现在的错误是： TypeError: TradingWidget.init() missing 2 required positional arguments: 'main_engine' and 'event_engine'
麻烦再帮忙看一下怎么回事，太感谢了！

不是新建实例，你应该传前面用到的实例

xiaohe wrote:

不是新建实例，你应该传前面用到的实例
多谢哦！已经搞定了！谢谢