向各位汇报一下源码思路：连续三天阴线下破30天均线，一周内又快速上穿30天均线，连续三天阴线下破30天均线，但30天均线不改变原来的运行方向持续过走强，从中可以看出是主力的洗盘行为，友情提示：弱势出现信号慎用。
 

{主图}
N=30;N1:=2;{N为30天均线,可调}
VAR1:=MA(C,N);
上升:IF(VAR1>REF(VAR1,1),VAR1,DRAWNULL)POINTDOT,COLORRED;
下降:IF(VAR1<REF(VAR1,1),VAR1,DRAWNULL)POINTDOT,COLORGREEN;
 A:=CROSS(EVERY(C<=MA(C,N) AND C<O,3) AND REF(H,N1)>MA(C,N),0.5);
 TJ:=BARSLAST(A);
 XG:=TJ<5 AND CROSS(C,MA(C,N)) AND EVERY(MA(C,N)>REF(MA(C,N),1),10);
 DRAWTEXT(XG,C,'----------------------------均线洗盘'),COLORYELLOW;
 B:=BARSLAST(XG);
 DRAWICON(B<30 AND COUNT(C>REF(C,B),B+1)=1 AND C>REF(C,B),C,9);

 {选股}
N=30;N1:=2;{N为30天均线,可调}
VAR1:=MA(C,N);
 A:=CROSS(EVERY(C<=MA(C,N) AND C<O,3) AND REF(H,N1)>MA(C,N),0.5);
 TJ:=BARSLAST(A);
 XG:=TJ<5 AND CROSS(C,MA(C,N)) AND EVERY(MA(C,N)>REF(MA(C,N),1),10);
 B:=BARSLAST(XG);
 B<30 AND COUNT(C>REF(C,B),B+1)=1 AND C>REF(C,B);