站上三线:=REF(C,1)MA(C,5) AND C>MA(C,10) AND C>MA(C,21); 回踩21:=REF(L,1)MA(REF(C,1),21) AND MA(REF(C,1),10)>MA(REF(C,1),21) AND MA(C,21)>MA(REF(C,1),21); 回调缩量:=REF(V,1)