详细的讲解下需求,
zz:zig(c,1);
zuigao:=barslast(zz>ref(zz,1) and zz>refx(zz,1));
zz1:=backset(islastbar,zuigao+1);
zuidi:=barslast(zz<ref(zz,1) and zz<refx(zz,1));
zz2:=backset(islastbar,zuidi+1);
drawline(cross(zz1,0.5),zz,cross(zz2,0.5),zz,0);
因为zig和backset是未来,仅序列模式下可用