帮忙写一下开平仓， 新手学习中　[金字塔]

KD:=KD1||(KD3)||(JXXS)||(JXXS1);         
PD:=PD1;         
KK:=KK1||KK3||JXXX||JXXX1;         
PK:=PK1;         

平空:SELLSHORT(PK,1,THISCLOSE);                 
开多:BUY(KD AND HOLDING=0,1,THISCLOSE);         
平多:SELL(PD,1,THISCLOSE);                      
开空:BUYSHORT(KK AND HOLDING=0,1,THISCLOSE);

          开多条件有KD1||(KD3)||(JXXS)||(JXXS1）共四个，只要不出现平多PD1，这四个条件只要满足就开仓，每个开多条件只允许一次，遇上平多PD1全平。

           开空同开多一样      

             每一次开多或者开空   最 多四次    谢谢        

variable:a1=0,a2=0,a3=0,a4=0;

if a1=0 and kd1 then begin

buy(1,1,market);

a1:=1;

end

if a2=0 and kd3 then begin

 buy(1,1,market);

 a2:=1;

end

if a3=0 and jxxs then begin

 buy(1,1,market);

 a3:=1;

end

if a4=0 and jxxs1 then begin

 buy(1,1,market);

 a4:=1;

end

if pd1 then begin

sell(1,0,market);

a1:=0;

a2:=0;

a3:=0;

a4:=0;

end

KK:=KK1||KK3||JXXX||JXXX1;         
PK:=PK1;          

   这是开平空的条件，谢谢