买入:=(ZDMRJE[-1]+BDMRJE[-1])/100000000; 卖出:=(ZDMCJE[-1]+BDMCJE[-1])/100000000; 大单净额:买入-卖出; STICKLINE(大单净额 0,0,大单净额,10,0),color0000ff; STICKLINE(大单净额 0,0,大单净额,10,0),color00ff00; 三日bbd:SUM(大单净额,3),colorred; 五日bbd:SUM(大单净额,5),COLORFFFF00; 十日bbd:SUM(大单净额,10); n的参数11001