CV:=CLOSE;
bbiboll:=(MA(CV,3)+MA(CV,6)+MA(CV,12)+MA(CV,24))/4;
UPR:=BBIBOLL+MSTD(BBIBOLL,N);
DWN:=BBIBOLL-MSTD(BBIBOLL,N);
缩口:=(UPR-DWN)/BBIBOLL
拐头:=UPR REF(UPR,1) AND BBIBOLL REF(BBIBOLL,1);
XG:REF(缩口,1) AND 拐头;