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编写要求：
要求：
1.看看有无未来函数（出来的信号会不会漂移）。
2.如果没有未来 请将“底”做个选股预警.
源码如下：
牛熊线:=0;
A:=EMA(CLOSE,13);
LC:=REF(CLOSE,1);
RSI1:=SMA(MAX(CLOSE-LC,0),6,1)/SMA(ABS(CLOSE-LC),6,1)*100;
AR:=SUM(HIGH-OPEN,26)/SUM(OPEN-LOW,26)*100;
卖点雷达:CROSS(85,RSI1)*30;
DRAWTEXT(CROSS(85,RSI1),80,'顶');
VARB:=SMA(MAX(CLOSE-LC,0),7,1)/SMA(ABS(CLOSE-LC),7,1)*100;
VARC:=SMA(MAX(CLOSE-LC,0),13,1)/SMA(ABS(CLOSE-LC),13,1)*100;
VARD:=BARSCOUNT(CLOSE);
买点雷达:(VARB< 20 AND VARC< 25 AND VARD> 50 AND AR<70 AND VOL
11q.cn解答：
LC:=REF(CLOSE,1);
AR:=SUM(HIGH-OPEN,26)/SUM(OPEN-LOW,26)*100;
RSI1:=SMA(MAX(CLOSE-LC,0),6,1)/SMA(ABS(CLOSE-LC),6,1)*100;
VARB:=SMA(MAX(CLOSE-LC,0),7,1)/SMA(ABS(CLOSE-LC),7,1)*100;
VARC:=SMA(MAX(CLOSE-LC,0),13,1)/SMA(ABS(CLOSE-LC),13,1)*100;
VARD:=BARSCOUNT(CLOSE);
买点雷达:=(VARB< 20 AND VARC< 25 AND VARD> 50 AND AR<70 AND VOL<REF(VOL,1) AND REF(VOL,1)<REF(VOL,2) AND REF(VOL,2)<REF(VOL,3))*30;
散户:=EMA( (CLOSE-MA(CLOSE,11))/MA(CLOSE,11)*480,7)*5;
CROSS(RSI1,25) OR (CROSS(RSI1,20)AND 散户<-20 AND 买点雷达);
