算法：上涨家数减去下跌家数所得的差的绝对值。
 该指标只适用于大盘日线。

M:=10;
 N:=5;
 DRAWGBK(V>1,STRIP(RGB(60,100,255),RGB(130,120,255),1));
 RSV:=(CLOSE-LLV(LOW,n))/(HHV(HIGH,n)-LLV(LOW,n))*100;
 K:=EMA(RSV,9);
 D:=EMA(K,5);
 PARTLINE(k,K>D,colorred,K  A:90,colorgreen;
 B: 50,colorred;
 C:5,coloryellow;
 DRAWTEXT(CROSS(K,D) AND (D < =5),30,'买'),colorred;
 DRAWTEXT(CROSS(D,K) AND (D > 85),70,'卖'),colorgreen;
 DRAWTEXT(CROSS(K,C)AND(K>=C),5,'大底'),colorred;
 DRAWTEXT(CROSS(A,K)AND(K<=A),98,'大顶'),colorgreen;
 ZT:=C/REF(C,1)>1.097;
 XH:=FILTER(ZT,13);
 BH:=BARSLAST(ZT);
 DRAWTEXT(ZT,L*0.8,"涨停"),coloryellow;
 Var1:=(CLOSE+HIGH+LOW)/3;
 Var2:=EMA(EMA(EMA(Var1,1),9),21);
 Var3:=LLV(LOW,33);
 Var4:=HHV(HIGH,17);
 Var5:=EMA((CLOSE-Var3)/(Var4-Var3)*100,20)*0.998;
 Var6:=EMA(0.667*REF(Var5,1)+0.333*Var5,1);
 Var7:=EMA(100*(HHV(HIGH,20)-CLOSE)/(HHV(HIGH,20)-LLV(LOW,33)),20);
 Var8:=EMA(Var7,1);
 Var9:=VOL/CAPITAL*100;
 VarA:=SU