主题：关于图表实盘的止损，怎么编写：

VARIABLE:n=0,m=0;
money：asset-ref(asset,todaybar);
if holding=2 and money/ref(asset,todaybar)>0.03 then
begin
sell(1,holding,market);
n:=1;
end

if HOLDING=2 and ENTERPRICE-c>0.005*ENTERPRICE then
begin
sell(1,1,market);
m:=1;
end
if 开仓条件 and n=0 and m=0 then buy(holding=0,1,market);
if time=CLOSETIME(0) then begin
n:=0;
m:=0;
end