学会这个方法，抓10倍大牛股的概率提升10倍>>

ft:=cross(ma(c,5),ma(c,10));

fy:=cross(ma(c,10),ma(c,20));

fu:=cross(ma(c,5),ma(c,20));

ts510:=if(cross(ma(c,10),ma(c,5)),0,BARSLAST(ft));

ts1020:=if(cross(ma(c,10),ma(c,5)),0,BARSLAST(fy));

ts520:=if(cross(ma(c,10),ma(c,5)),0,BARSLAST(fu));

ft1:=ref(ma(c,5),ts510+1);

fy1:=ref(ma(c,10),ts1020+1);

fu1:=ref(ma(c,20),ts520+1);

ts520:=BARSLAST(fu);

DRAWLINE(ft,ft1,fy,fy1,0),colorred,linethick2;

DRAWLINE(ft,ft1,fu,fu1,0),colorred,linethick2;

DRAWLINE(fu,fu1,fy,fy1,0),colorred,linethick2;