[Fix]Close #1439
[Fix]Close #1439

bigdig/vnpy,msincenselee/vnpy,bigdig/vnpy,andrewchenshx/vnpy,andrewchenshx/vnpy,vnpy/vnpy,vnpy/vnpy,andrewchenshx/vnpy,msincenselee/vnpy,bigdig/vnpy,bigdig/vnpy,andrewchenshx/vnpy,msincenselee/vnpy,andrewchenshx/vnpy,msincenselee/vnpy