M:=0.05;
N:=5;
XG:SUM(C/REF(C,1),N)<N-M;
10天內出現5天跌幅達到m(感覺意義不大):
AA:=SUM(C/REF(C,1),N)<N-M;
XG:COUNT(AA,10)>=1;
(已測試。照妳的意思寫的。形態的話分明是5天連跌,然後5天連陽嘛)