主题：怎么以上一个开仓价为基础做反向单。

VARIABLE:n:=0;

if 开多条件 and n=0 then
begin
buy(holding=0,1,market);
n:=1;
end
sell(平多条件 and holding>0,1,market);

if 开空条件 and n=0 then
begin
buyshort(holding=0,1,market);
n:=2;
end
sellshort(平空条件 and holding<0,1,market);

if EXITPRICE-ENTERPRICE>0 and n=2 then buy(holding=0,1,market);//n=2判断上次是开空

if enterprice-EXITPRICE>0 and n=1 THEN buyshort(holding=0,1,market);//n=1判断上次是开多

if time=closetime(0) then n:=0;