技术要点：
1、连续下跌；
2、下跌后的阴线放巨量，是最近成交量的3倍以上。
3、随后几日缩量解套这根阴线。
阴线解套后不放量，说明介入阴线的成交量为主动接收盘，巨量说明大资金所为。
fl:=v/ma(v,5)>2.5 and v/capital>0.03;xg: ref(fl and c<o*0.99,1) and c>ref(o,1) or ref(fl and c<ref(c,1)*0.99 and c>o,1) and c>ref(c,1) or ref(fl and c<o*0.99,2) and c>ref(o,2) or ref(fl and c<ref(c,1)*0.99 and c>o,2) and c>ref(c,2) or ref(fl and c<o*0.99,3) and c>ref(o,3) or ref(fl and c<ref(c,1)*0.99 and c>o,3) and c>ref(c,3); |
