许氏多周期（通达信 副）

{许氏多周期}
盈亏线:0;
趋势2:XMA(XMA(XMA(C,2)-REF(XMA(C,2),1),2),2);
趋势4:XMA(XMA(XMA(C,4)-REF(XMA(C,4),1),4),4);
趋势6:XMA(XMA(XMA(C,6)-REF(XMA(C,6),1),6),6);
趋势8:XMA(XMA(XMA(C,8)-REF(XMA(C,8),1),8),8);
趋势12:XMA(XMA(XMA(C,12)-REF(XMA(C,12),1),12),12);
趋势16:XMA(XMA(XMA(C,16)-REF(XMA(C,16),1),16),16);
趋势30:XMA(XMA(XMA(C,30)-REF(XMA(C,30),1),30),30);