指标名称：深挖洞
用法：如果把K线放到最大，股价在底部那条红线上，就是5天最低价；
退一格，就是10天最低价，退二格就是20天最低价；
退三格就是40天最低价，退四格就是60天最底价；
时间越长的底点，反弹的可能性越大。
注意：没有选股代码，只有到跌幅榜去找。
根据这个指标进了603366四万股
DRAWRECTREL(300,985,900,980,80);
DRAWTEXT_FIX(1,0.8,0.985,1,'深挖洞，广积粮'),COLORYELLOW;
{注意：没有选股代码，只有到跌幅榜去找
{深挖洞,广积粮}
VAR1:=(CLOSE-LLV(LOW,20))/(HHV(HIGH,20)-LLV(LOW,20))*100;
VAR2:=SMA(VAR1,3,1);
VAR3:=SMA(VAR2,3,1);
VAR4:=3*VAR2-2*VAR3;
VAR5:=LLV(LOW,30);
VAR6:=HHV(HIGH,30);
VAR7:=EMA((CLOSE-VAR5)/(VAR6-VAR5)*100,8);
VAR8:=EMA(VAR7,5);
STICKLINE(VAR7>VAR8,VAR7,VAR8,2.5,0),COLORRED;
STICKLINE(VAR7<=VAR8,VAR7,VAR8,2.5,0),COLORGREEN;
DRAWTEXT(CROSS(VAR7,VAR8) AND VAR7<20,VAR7-5,'买'),COLORYELLOW;
DRAWTEXT(CROSS(VAR8,VAR7) AND VAR7>80,VAR7+5,'卖'),COLORWHITE;
趋势线:VAR7,COLORRED;
预警线:VAR8,COLORGREEN;
强弱线:50,COLORBLUE,LINETHICK2;
DRAWTEXT_FIX(1,0.01,0.05,0,'深挖洞'),COLORRED;
DRAWTEXT_FIX(1,0.01,0.10,0,'广积粮'),COLORGREEN;
