if a=1 and time<145500 then 开多语句;
if b=1 and time<145500 then 开空语句;
if holding>0 and c-enterprice>20*mindiff then 多头止盈语句;
if holding>0 and enterprice-c>5*mindiff then 多头止损语句;
if holding<0 and enterprice-c>20*mindiff then 空头止盈语句;
if holding<0 and c-enterprice>5*mindiff then 空头止盈语句;