短期:=100*(C-LLV(L,5))/(HHV(C,5)-LLV(L,5));中期:=100*(C-LLV(L,10))/(HHV(C,10)-LLV(L,10));中长期:=100*(C-LLV(L,20))/(HHV(C,20)-LLV(L,20));长期:=100*(C-LLV(L,30))/(HHV(C,30)-LLV(L,30)); XG:短期<20 AND 长期>60;