学会这个方法，抓10倍大牛股的概率提升10倍>>

MA3:MA(CLOSE, 3);

MA13:MA(CLOSE, 13);

DRAWTEXT(CROSS(ZIG(3,13),REF(ZIG(3,13),1)),LOW*1.001,'★底'),colorgreen;

DRAWTEXT(CROSS(REF(ZIG(3,13),1),ZIG(3,13)),HIGH*1,'★逃顶'), colorred;