通达信成本均线源码，抓牛股超准

成本均线

CHUQUAN:=1;
C20:SUM(AMOUNT,20)/SUM(VOL*100*CHUQUAN,20);
C60:SUM(AMOUNT,60)/SUM(VOL*100*CHUQUAN,60);
C120:SUM(AMOUNT,120)/SUM(VOL*100*CHUQUAN,120);
C480:SUM(AMOUNT,480)/SUM(VOL*100*CHUQUAN,480);