{BOLL防套技}
BOLL:MA(CLOSE,20),COLORRED;
UPPER:BOLL+2*STD(CLOSE,20),COLOR808080 ;
LOWER:BOLL-2*STD(CLOSE,20),COLORGREEN;
{BOLL防套技}
BOLL:MA(CLOSE,20),COLORRED;
UPPER:BOLL+2*STD(CLOSE,20),COLOR808080 ;
LOWER:BOLL-2*STD(CLOSE,20),COLORGREEN;