标题：一根K线只能有一次平仓

et1:=extgbdata('kaiduo') ;

et2:=extgbdata('kaikong') ;

if DYNAINFO(7)>et2 and TSELLHOLDING(1)>0 and barpos>extgbdata('bar') then begin

   if mod(o-(et2+1),2)=0 then tsellshort(1,1,lmt,et2+n,0),SLITHERMETHOD;

   n:=1;

   if mod(o-(et2+3),2)>=0 then tsellshort(1,1,lmt,et2+2*n-1,0),SLITHERMETHOD;

   n:=n+1;

end

这样编写对？