优化RSI源码

DRAWGBK(c>0),color000000;
快线: (((C+L)/2-LLV(L,19))/(HHV(H,19)-LLV(L,19))*100)+20,COLORFFFFFF,LAYER0;
慢线:=(((C+L)/2-LLV(L,68))/(HHV(H,68)-LLV(L,68))*100)+20;
防线:EMA(((2*C+H+L)/4-LLV(L,31))/(HHV((H+C)/2,21)-LLV(L,31))*100,8),COLOR00FFFF,LAYER1;
均线:SMA(防线,4,1),COLOR00FF00,LAYER1;
FILLRGN(防线,均线,防线>=均线,RGB(155,0,0),防线<均线,RGB(0,0,155));
drawtext(cross(防线,均线), 防线,'买'),COLOR0000ff;
中线预警:STICKLINE(防线>=90,123,125,12,0),COLOR0000FF;
短线预警:STICKLINE(快线>=106,116,120,12,1);
逃跑:STICKLINE(快线>=110,128,130,12,1),COLOR00FF00;                                            
LC := REF(CLOSE,1);
RSI11:=SMA(MAX(CLOSE-LC,0),6,1)/SMA(ABS(CLOSE-LC),6,1)*100-70;
RSI22:=SMA(MAX(CLOSE-LC,0),12,1)/SMA(ABS(CLOSE-LC),12,1)*100-70;
RSI33:=SMA(MAX(CLOSE-LC,0),24,1)/SMA(ABS(CLOSE-LC),24,1)*100-70;
RSI1:RSI11+70,LINETHICK0,COLORFFFFFF;
RSI2:RSI22+70,LINETHICK0,COLOR00FFFF;
RSI3:RSI33+70,LINETHICK0,COLORFF00FF;
partline(RSI11,C>0),LINETHICK1,COLORFFFFFF,layer1;
partline(RSI22,C>0),LINETHICK1,COLOR00FFFF,layer1;
partline(RSI33,C>0),LINETHICK1,COLORFF00FF,layer2;
FILLRGN(-50,RSI11,RSI11<=-50) ,COLOR00FF00,layer0;
108,COLOR000044,DOTLINE;  90,COLOR000044,DOTLINE;  70,COLOR000055;50,COLOR000044,DOTLINE; 10,COLOR003300; -15,COLOR003300; -50,COLOR003300;