[Fix]Close #1450
[Fix]Close #1450

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