编写条件：
BM:="MACD.DIF"(12,26,9); AAM:BM,POINTDOT,COLOR00FF00,LINETHICK5; AAC:IF(BM>REF(BM,1),BM,DRAWNULL),POINTDOT,COLORBLUE,LINETHICK5; 第三行怎么编写？ 编译错误啊 求老师解决，多谢了编写方法：
BM:="macd.DIFF"(12,26,9);
AAM:BM,POINTDOT,COLOR00FF00,LINETHICK5;
PARTLINE(BM,BM>REF(BM,1),RGB(0,0,250)),POINTDOT,COLORBLUE,LINETHICK5;
