修正GUI中仓位变量pos不能实时更新的问题。
修正GUI中仓位变量pos不能实时更新的问题。

kernelmilowill/PDMQBACKTEST,yongfuyang/vnpy,ujfjhz/vnpy,kernelmilowill/PDMQBACKTEST,akeyong/vnpy,harveywwu/vnpy,wisfern/vnpy,msincenselee/vnpy,wylwang/vnpy,jiangjinjinyxt/vnpy,xcbat/vnpy,wylwang/vnpy,msincenselee/vnpy,rrrrrr8/vnpy,harveywwu/vnpy,harveywwu/vnpy,jiangjinjinyxt/vnpy,andrewchenshx/vnpy,andrewchenshx/vnpy,andrewchenshx/vnpy,wisfern/vnpy,jiangjinjinyxt/vnpy,harveywwu/vnpy,andrewchenshx/vnpy,yongfuyang/vnpy,xcbat/vnpy,wisfern/vnpy,wylwang/vnpy,Chemcy/vnpy,wisfern/vnpy,Chemcy/vnpy,ujfjhz/vnpy,msincenselee/vnpy,jiangjinjinyxt/vnpy,kernelmilowill/PDMQBACKTEST,yongfuyang/vnpy,yongfuyang/vnpy,yongfuyang/vnpy,bigdig/vnpy,bigdig/vnpy,xcbat/vnpy,rrrrrr8/vnpy,xcbat/vnpy,akeyong/vnpy,akeyong/vnpy,msincenselee/vnpy,vnpy/vnpy,wisfern/vnpy,kernelmilowill/PDMQBACKTEST,rrrrrr8/vnpy,harveywwu/vnpy,Chemcy/vnpy,rrrrrr8/vnpy,wisfern/vnpy,rrrrrr8/vnpy,wylwang/vnpy,Chemcy/vnpy,bigdig/vnpy,harveywwu/vnpy,akeyong/vnpy,ujfjhz/vnpy,ujfjhz/vnpy,akeyong/vnpy,jiangjinjinyxt/vnpy,wylwang/vnpy,Chemcy/vnpy,bigdig/vnpy,kernelmilowill/PDMQBACKTEST,ujfjhz/vnpy,vnpy/vnpy,andrewchenshx/vnpy,rrrrrr8/vnpy,xcbat/vnpy