学会这个方法，抓10倍大牛股的概率提升10倍>>

RSV13=(CLOSE-LLV(LOW,13))/(HHV(HIGH,13)-LLV(LOW,13))*100;

K13=SMA(RSV13,3,1);

D13=SMA(K13,3,1);

J13=3*K13-2*D13;

RSV55=(CLOSE-LLV(LOW,55))/(HHV(HIGH,55)-LLV(LOW,55))*100;

K55=SMA(RSV55,3,1);

D55=SMA(K55,3,1);

J55=3*K55-2*D55;

支撑位:IF(CROSS(J13,J55),LOW,REF(LOW,BARSLAST(CROSS(J13,J55))));

压力位:IF(CROSS(J55,J13),HIGH,REF(HIGH,BARSLAST(CROSS(J55,J13))));

中位:(支撑位+压力位)/2;