1. 求股價由下向上差一點點就要碰觸到5日線的選股公式
a1:=ma(c,5)>=ref(ma(c,5),1);a2:=ma(c,10)>=ref(ma(c,10),1);a3:=ma(c,30)>=ref(ma(c,30),1);a4:=c<o;a5:=c<ma(c,3) and c>=ma(c,5);a1 and a2 and a3 and a4 and a5;