结合量比，最高价，创新高的特点，中间调整天数为3-5天
{外困三法指标}
N:=5;
M:=10;
VAR1:=(CLOSE-LLV(LOW,N))/(HHV(HIGH,N)-LLV(LOW,N))*100;
VAR2:=SMA(VAR1,3,1);
VAR3:=SMA(VAR2,3,1);
VAR4:=CROSS(VAR2,VAR3) AND VAR3<20;
VAR5:=REF(CLOSE,1);
VAR6:=SMA(MAX(CLOSE-VAR5,0),M,1)/SMA(ABS(CLOSE-VAR5),M,1)*100;
VAR7:=CROSS(VAR6,20);
VAR8:=VOL>MA(VOL,5)*1.5;
外困三法:VAR4 AND VAR7 AND VAR8;
