低买高卖（源码，主图，通达信，贴图）

E5:EMA(C,5),COLORLIGRAY;E10:EMA(C,10),COLORMAGENTA;A:

DRAWLINE(L=LLV(L,BARSLAST(CROSS(E10,E5))+1) AND L=LLV(L,5) AND E5<=E10,L,H=HHV(H,BARSLAST(CROSS(E5,E10))+1) AND H=HHV(H,5) AND E5>=E10,H,0),COLORRED;B:

DRAWLINE(H=HHV(H,BARSLAST(CROSS(E5,E10))+1) AND H=HHV(H,5) AND E5>=E10,H,L=LLV(L,BARSLAST(CROSS(E10,E5))+1) AND L=LLV(L,5) AND E5<=E10,L,0),COLORGREEN;

DRAWTEXT(H=A,H,卖出);DRAWTEXT(L=B,L,买入);