请老师帮忙看一下这段语言 (文华财经WH6赢顺V6.7)

DIFF : EMA(CLOSE,12) - EMA(CLOSE,26);

DEA  : EMA(DIFF,9);

MACD:=2*(DIFF-DEA),COLORSTICK;

DIFF>DEA&&CROSS(DIFF,0),BPK;

DIFF>0&&DEA>0&&CROSS(DIFF,DEA),BPK;

DIFF>0&&DEA>0&&CROSSDOWN(DIFF,DEA),SPK;

DIFF<0&&DEA>0&&CROSSDOWN(DIFF,DEA),SPK;

DIFF<0&&DEA<0&&CROSSDOWN(DIFF,DEA),SPK;

AUTOFILTER;