求高手編壹個通達信副圖公式

RSI0:SMA(MAX(CLOSE-LC,0),5,1)/SMA(ABS(CLOSE-LC),5,1)*100;

DRAWTEXT(CROSS(30,RSI0),RSI,'買進'),COLORYELLOW;

DRAWTEXT(CROSS(20,RSI0),RSI,'加倉'),COLORRED;

DRAWTEXT(CROSS(RSI0,60),RSI,'減倉'),COLORBLUE;

DRAWTEXT(CROSS(RSI0,75),RSI,'清'),COLORGREEN;