主题：当日平掉仓单以后，不再开反向仓单怎么写全局变量

con2:= W1<-45 and REF(ANY(W1<-44,9),1)  AND T1  and b=0 and holding=0;

Con3:= HHV(H,5)>1.0094*C ;
Con4:=C>1.0094*LLV(L,5);
con5:=bias60<0 ;
con6:= bias60>0 ;
Input:tq(3,1,60,1);
abb:=(time0-timetot0(dynainfo(207))<=tq) or not(islastbar);
if abb then begin

if  con1 then begin
 sellshort(holding<0, 0, market);
 buy(1 ,1, market);
 end
 
If  con3  OR T2 or con5  or w1<0  then BEGIN sell(holding>0, 0, market);
a:=0;
b:=1;
 end
if  con2 then begin
 sell(holding>0, 0, MARKET);
 buyshort(1, 1,market);
 end
 
 
 
if con4 OR T2  or w1>0 or con6 then begin sellshort(holding<0, 0, market);
 a:=1;
 b:=0;
end
end

if L<ref(LLv(L,todaybar),1)-5*mindiff  and holding>0 then begin sell(1,0,market);
a:=1;
end

if H>ref(hhv(h,todaybar),1)+5*MINDIFF  and holding<0 then begin sellshort(1,0,market);
b:=1;
end

if time>=150000 then a:=0;
if time>=150000 then b:=0;