投机1:=100*(C-LLV(L,5))/(HHV(C,5)-LLV(L,5));
投机2:=100*(C-LLV(L,10))/(HHV(C,10)-LLV(L,10));
投机3:=100*(C-LLV(L,20))/(HHV(C,20)-LLV(L,20));
投机4:=100*(C-LLV(L,30))/(HHV(C,30)-LLV(L,30));
A:=REF(投机4,1) 15 AND REF(投机1,1)
B:=COUNT(投机4 20,4) =2 AND COUNT(投机1 30,4)
D:=CROSS(投机1,50) AND CROSS(投机4,15);
ENTERLONG:A AND B AND D AND C
