解答这个指标的含义

编写要求：

源码： A4:=MA(CLOSE,20); A5:=(CLOSE > MA(CLOSE,5)); A6:=(MA(CLOSE,5) > MA(CLOSE,10)); A7:=(CLOSE > MA(CLOSE,10)); A8:=(MA(CLOSE,5) > MA(CLOSE,20)); A9:=(CLOSE > MA(CLOSE,20)); A10:=REF(A4,1); A11:=(A4 > A10); {AVX:(((((IF(A5,10,(0 - 10)) + IF(A6,10,(0 - 10))) + IF(A7,10,(0 - 10))) + IF(A8,10,(0 - 10))) + IF(A9,10,(0 - 10))) + IF(A11,10,(0 - 10)))/50;} 风向标:MA((((((IF(A5,100,0) + IF(A6,100,0)) + IF(A7,100,0)) + IF(A8,100,0)) + IF(A9,100,0)) + IF(A11,100,0))/6,3.5); {VARR:=REF(CLOSE,1);强弱方向:=SMA(MAX(CLOSE-VARR,0),5,1)/SMA(ABS(CLOSE- VARR),5,1)*100,COLORYELLOW;} {80, POINTDOT,COLORBLUE,LINETHICK2; 70, POINTDOT,COLORWHITE,LINETHICK2; 20, POINTDOT,COLORGREEN,LINETHICK2; {10, POINTDOT,COLORBLUE,LINETHICK2}; 航向: MA(3*SMA((CLOSE-LLV(LOW,27))/(HHV(HIGH,27)-LLV(LOW,27))*100,3,1)-2*SMA((CLOSE-LLV(LOW,27))/(HHV(HIGH,27)-LLV(LOW,27))*100,3,1),3); 卧龙飞买入:IF(风向标<35 AND 航向<35 AND CROSS(风向标,航向),60,0); DRAWICON(风向标<35 AND 航向<35 AND CROSS(风向标,航向),卧龙飞买入,25); DRAWTEXT(风向标<35 AND 航向<35 AND CROSS(风向标,航向),0,'卧龙');

解答：

?A4:=MA(CLOSE,20);

20日收盘价格的平均值赋值给语句名《A4》