主题：请教一个macd模型编写

{股指3分钟MACD
MACD参数为（26，8，6）
做多条件：DEA在（-3，-10）（2.5-10）之间时，DIF上穿DEA，做多。
平仓信号，DIF下穿DEA。

做空条件：DEA在（0.5，3.0）（5.0-6.0）(-4.0,-15)之间时，DIF下穿DEA，做空。
平仓信号，DIF上穿DEA.}

input:p(26,20,100,8),s(8,5,40,4),m(6,2,60,6);
DIFF : EMA(CLOSE,S) - EMA(CLOSE,P);
DEA  : EMA(DIFF,M);
MACD1 : 2*(DIFF-DEA), COLORSTICK;
if DEA>-3 AND DEA<-10 AND DEA<10 AND DEA>2.5 AND CROSS(DIFF,DEA) THEN
BEGIN
   BUY(1,1,MARKET);
END

IF CROSS(DEA,DIFF) THEN SELL(1,0,MARKET);

if DEA>0.5 AND DEA<3 AND DEA<6 AND DEA>5 AND DEA>-4 AND DEA<-15 AND CROSS(DEA,DIFF) THEN
BEGIN
   BUYSHORT(1,1,MARKET);
END

IF CROSS(DIFF,DEA) THEN SELL(1,0,MARKET);