[Fix]Close #927
[Fix]Close #927

rrrrrr8/vnpy,bigdig/vnpy,msincenselee/vnpy,bigdig/vnpy,rrrrrr8/vnpy,andrewchenshx/vnpy,vnpy/vnpy,andrewchenshx/vnpy,andrewchenshx/vnpy,msincenselee/vnpy,bigdig/vnpy,andrewchenshx/vnpy,msincenselee/vnpy,rrrrrr8/vnpy,rrrrrr8/vnpy,rrrrrr8/vnpy,rrrrrr8/vnpy,bigdig/vnpy,msincenselee/vnpy,andrewchenshx/vnpy,vnpy/vnpy