Traceback (most recent call last):
File ""D:\python3.10.2\lib\site-packages\vnpy_ctastrategy\engine.py"", line 619, in call_strategy_func
```
func(params)
```
File ""C:\Users\admin\strategies\demo_two_strategy.py"", line 58, in on_tick
```
self.bg.update_tick(tick)
```
File ""D:\python3.10.2\lib\site-packages\vnpy\trader\utility.py"", line 223, in update_tick
```
self.on_bar(self.bar)
```
File ""C:\Users\admin\strategies\demo_two_strategy.py"", line 35, in intermediate
```
result = function(*args, **kwargs)
```
File ""C:\Users\admin\strategies\demo_two_strategy.py"", line 62, in on_bar

self.send_email(""��ǰ����۸�"" + str(bar.close_price + 100))

File ""D:\python3.10.2\lib\site-packages\vnpy_ctastrategy\template.py"", line 331, in send_email
```
self.cta_engine.send_email(msg, self)
```
File ""D:\python3.10.2\lib\site-packages\vnpy_ctastrategy\engine.py"", line 970, in send_email

self.main_engine.send_email(subject, msg, None)

用的时候mainEngine没有send_email方法

源代码错误，重写send_enail

def send_email(self, msg):

self.cta_engine.main_engine.send_notification(msg)

只能先这样写，有没有更好的方法