高点下跌10%给出买字信号

编写要求：

在每次从近期高点下跌10%的时候买入一定数额在次从高点下跌在买入保持个低成本不会深度套牢

解答：

DRAWBAND(ZIG(3,10),RGB(255,255,0),MA(ZIG(3,10),2),RGB(136,136,136));
A1:=ZIG(3,10);
A2:=MA(ZIG(3,10),2);
TJ:=REFX(CROSS(A2,A1),1);
TS:=BARSLAST(TJ);
XIN:=CROSS(COUNT(CROSS(C<REF(C,TS)*0.9,0.5),TS)=1,0.5);
DRAWTEXT(TJ,H*1.002,'高');
DRAWTEXT(XIN,L*0.98,'买');
DRAWKLINE(HIGH,OPEN,LOW,CLOSE);