主题：请问如何表达

加上date=currentdate 的限制
VARIABLE:n:=0,m:=0;
TT:=date=currentdate and time<=145500;

H1:=hhv(h, todaybar);

if h1-L>=12 and n=0 and TT THEN
begin
buyshort(holding=0,1,market);
n:=1;
end

L1:=llv(L,todaybar);
if h-L1>=12 and m=0 and TT then // L1升12点
begin
buy(holding=0,1,market);
m:=1;
end

L2:=LLv(L,enterbars+1);
if (H-L2>=6 or H-enterprice >=4) and enterbars >1 then sellshort(holding<0,1,market);

H2:=hhv(h,exitbars);
if H2-L>=12 and TT and exitbars>1 then buyshort(holding=0,1,market);

if H-L2>=12 and TT and exitbars>1 then buy(holding=0,1,market);

L3:=LLv(L,exitbars+1);
if L3<=L2 and H2-L3<12 and H-L3>=12 and TT and exitbars>1 then buy(holding=0,1,market);

HH2:=hhv(h,enterbars+1);
if (HH2-L>=6 or enterprice-L>=4) and enterbars >1 then sell(holding>0,1,market);

LL2:=llv(L,exitbars+1);
if h-LL2>=12 and TT and exitbars>1 then buy(holding=0,1,market);

if HH2-L>=12 and TT and exitbars>1 then buyshort(holding=0,1,market);

HH3:=hhv(h,exitbars+1);
if HH3>=HH2 and HH3<LL2+12 and L<=HH3-12 and TT and exitbars>1 then buyshort(holding=0,1,market);

if time=closetime(0) then begin
n:=0;
m:=0;
end

sell(time>150000 and holding>0, 0, market);

sellshort(time>150000 and holding<0, 0, market);