主题：如何编写出信号后回抽到五日线买入？

mm11:=(bj=1  and ttt and hb and a  and isup and ss>0 and CLOSE>REF(L+(H-L)*2/3,1)and  holding=0 );

 nnmm3:=barslast(mm11 and mm=0 );

if nnmm3>=1 and nnmm3<=4 and bjmm3=0 and holding=0  and ttt and  l-0.035<=ma5 then begin
 开多m_3:buy(1,1,market);
 bjmm3:=1;
 end

mm:=mm+1;

if barslast(cross(mm,0.5))>4 then mm:=0;