老师，帮我改成天勤量化的策略

MACD指标，
DIFF : EMA(CLOSE,SHORT) – EMA(CLOSE,LONG);
DEA : EMA(DIFF,M);
MACD:=2*(DIFF-DEA);
MACD1:=REF(MACD,1);

A1:=MACD>0 && REF(MACD,1)<0 && REF(MACD,2)<=0;
A2:=MACD<0 && REF(MACD,1)>=REF(MACD1,1) && MACD>=MACD1 && REF(MACD,2)<=REF(MACD1,2) && REF(MACD,3)<=REF(MACD1,3);

B1:=MACD<0 && REF(MACD,1)>0 && REF(MACD,2)>=0;
B2:=MACD>0 && REF(MACD,1)<=REF(MACD1,1) && MACD<=MACD1 && REF(MACD,2)>=REF(MACD1,2) && REF(MACD,3)>=REF(MACD1,3);

开仓条件：如果没有多单，满足A1或A2在K线走完后开多单，有空单则先平仓在开仓
如果没有空单，满足B1或B2在K线走完后开空单，有多单则先平仓在开仓
谢谢