昨收:=ref(c,1);
正负换手:if(c>昨收,vol,0-vol)/CAPITAL*100,VOLSTICK;
STICKLINE(正负换手>0,0,正负换手,6.5,0),color00DDFF;
STICKLINE(正负换手<0,0,正负换手,6.5,0),colorDDDDDD;