通达信强势建仓副图，无未来，源码

通达信强势建仓副图，无未来，源码

用法：买卖点分明，红买粉出！！！！！！！！！！
 
N1:=3;N2:=7;N3:=21;
 LC:=REF(CLOSE,1);
 RSI1:=SMA(MAX(CLOSE-LC,0),N1,1)/SMA(ABS(CLOSE-LC),N1,1)*100;
 RSI2:=SMA(MAX(CLOSE-LC,0),N2,1)/SMA(ABS(CLOSE-LC),N2,1)*100;
 RSI3:=SMA(MAX(CLOSE-LC,0),N3,1)/SMA(ABS(CLOSE-LC),N3,1)*100;
 底部区域:20,COLORGREEN,LINETHICK2;
 分界线:50,COLORWHITE,LINETHICK2;
 风险区域:80,COLORYELLOW,LINETHICK2;
 ZB1:=RSI1<底部区域;{股海网提供：www.guhai.com.cn}
 建仓:IF(CROSS(RSI1,底部区域) ,80,0),COLORRED,LINETHICK3;
 DRAWICON(CROSS(RSI1,底部区域) ,30,11);
 ZB2:=(ZB1=0 AND RSI1<=风险区域);
 卖出:IF(ZB2=1 AND REF(ZB2,1)=0 AND 建仓=0,50,100),COLORMAGENTA,LINETHICK3;