LOWV:=LLV (low, n);

HIGHV:=HHV (high, n);

RSV:=EMA ((closing

LOWV)/ (high voltage -LOWV)* 100, m);

K:=EMA(RSV，M)；

D:=MA(K，M)；

REF(K, 2)>REF(K, 1) and K & gtREF(K, 1) and k.