GJTJ3:=100*(C-LLV(L,20))/(HHV(C,20)-LLV(L,20)); GJTJ4:=100*(C-LLV(L,30))/(HHV(C,30)-LLV(L,30)); AQ:=GJTJ3=100; BQ:=GJTJ4<90; 波启前兆:COUNT(AQ,2) = 2 AND BQ;