主题：[求助]急求一个问题！谢谢！

VARIABLE:ab=0;

if buycond and ab=0 then
begin
buy(1,2,limitr,开盘+x1*mindiff);
ab:=1;
end

if buyshortcond and ab=0 then
begin
buyshort(1,2,limitr,开盘-x1*mindiff);
ab:=1;
end

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

加上全局变量呢？这么好像也不好使。