修正天勤接口收到非数据包时抛出exception的bug
修正天勤接口收到非数据包时抛出exception的bug

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