老师麻烦把下面的代码改成TB的语言

AMOUNT:=AVPRICE*V;A1:=AMOUNT/VOL/100;A2:=(3*HIGH+LOW+OPEN+2*CLOSE)/7;A3:=SUM(AMOUNT,40)/A1/100;A4:=SUM(AMOUNT,80)/A1/100;B1:=DMA(A2,VOL/A3);B2:=DMA(A2,VOL/A4);B3:=(CLOSE-B1)/B1*1000;B4:=(CLOSE-B2)/B2*1000;MAB3_2:=EMA(B3,2);MAB3_21:=EMA(B3,21);主要是DMA这个不会编写