A12:=BARSLAST(REF(CROSS("KDJ.K","KDJ.D"),1));B2:=REF(C,A12+1)>C AND REF("KDJ.K",A12+1)<"KDJ.K" AND CROSS("KDJ.K","KDJ.D");K底背:B2>0;九毛八公式解读 A12赋值:上次1日前的"KDJ的K"上穿"KDJ的D"距今天数 B2赋值:A12+1日前的收盘价>收盘价 AND A12+1日前的"KDJ的K"<"KDJ的K" AND "KDJ的K"上穿"KDJ的D" 输出K底背:B2>0