自遍個主圖畫線公式，測試能通過，卻無法加載，提示 兩個操作數不可為空（某一個變量或函數未返回數據）！請老師幫忙，謝謝！ WH6贏順

DRAWKLINE(0.75,COLORRED,1,COLORCYAN,0);
MTR:=MAX(MAX((HIGH-LOW),ABS(REF(CLOSE,1)-HIGH)),ABS(REF(CLOSE,1)-LOW));
ATR:=MA(MTR,24);
JD:=EMA((C-REF(C,1)),N);
RSV:=(CLOSE-LLV(LOW,27))/(HHV(HIGH,27)-LLV(LOW,27))*100;
KK:=DRAWICON(MTR>ATR AND JD<0 ,H,2);
DRAWTEXT(KK,HIGH,'-----'),COLORYELLOW;
AAA:=BARSLAST(MTR>ATR AND JD<0);
BBB:=REF(H,AAA);
DRAWICON(CROSS(C,BBB),L*0.99,1);

n 1  9  3

 這樣修改。

DRAWKLINE(0.75,COLORRED,1,COLORCYAN,0);
MTR:=MAX(MAX((HIGH-LOW),ABS(REF(CLOSE,1)-HIGH)),ABS(REF(CLOSE,1)-LOW));
ATR:=MA(MTR,24);
JD:=EMA((C-REF(C,1)),N);
RSV:=(CLOSE-LLV(LOW,27))/(HHV(HIGH,27)-LLV(LOW,27))*100;
DRAWICON(MTR>ATR AND JD<0 ,H,'ICO5');
AAA:=BARSLAST(MTR>ATR AND JD<0);
BBB:=REF(H,AAA);
DRAWICON(CROSS(C,BBB),L*0.99,'ICO4');