回踩20线

{选股名称：回踩20线_大师进阶版}

{1. 基础均线系统}
MA20 := MA(C, 20);
MA60 := MA(C, 60);
MA120 := MA(C, 120);

{2. 涨停基因 (30天内)}
ZT := (C/REF(C,1) >= 1.095) AND (C = H);
ZT_COUNT := COUNT(ZT, 30);
COND_GENE := ZT_COUNT >= 1 AND ZT_COUNT <= 3; {放宽到3次，包容妖股}

{3. 位置回踩}
COND_POS := ABS((C - MA20) / MA20) <= 0.025; {稍微放宽到2.5%，防止错失}

{4. ★进阶1：长期趋势保护 (多头排列)}
{20线在60线之上，且60线不能向下拐头太厉害}
COND_TREND := MA20 > MA60 AND MA60 > REF(MA60, 5);

{5. ★进阶2：极致缩量 (相比涨停日)}
{获取最近一次涨停距今的天数}
DAYS_LAST_ZT := BARSLAST(ZT);
{那天的成交量}
VOL_AT_ZT := REF(VOL, DAYS_LAST_ZT);
{今天的量 < 涨停量的0.6倍 (即缩量4成以上)}
COND_PVOL := VOL < VOL_AT_ZT * 0.6 AND VOL < REF(VOL, 1);

{6. ★进阶3：相对强度 (跑赢大盘)}
MY_RPS := (C - REF(C, 10)) / REF(C, 10);
INDEX_RPS := (INDEXC - REF(INDEXC, 10)) / REF(INDEXC, 10);
COND_STRONG := MY_RPS > INDEX_RPS;

{7. 辅助指标 (筹码 + MACD)}
COND_WIN := WINNER(C)*100 > 60;
DIF := EMA(C, 12) - EMA(C, 26);
COND_MACD := DIF > -0.1; {允许轻微跌破0轴，只要趋势没崩}

{8. 安全过滤}
NO_ST := NAMELIKE('ST')=0 AND NAMELIKE('*ST')=0 AND DYNAINFO(4)>0;
NO_BAD := C/REF(C,1) > 0.91;

{----最终输出----}
XG: COND_GENE AND COND_POS AND COND_TREND AND COND_PVOL AND COND_STRONG AND COND_WIN AND COND_MACD AND NO_ST AND NO_BAD;