高低点范围画线

请老师帮我改成tbq3的代码//*****定义20根K线的高低点范围*****//N:=20;M:=1;上沿:=HV(H,N);下沿:=LV(L,N);DRAWSL(ISLASTBAR,上沿,0,-N+1,0,RGB(180,180,180)),DOT;DRAWSL(ISLASTBAR,下沿,0,-N+1,0,RGB(180,180,180)),DOT;//FILLRGN(BACKSET(ISLASTBAR,N*M),REFX1(HHV(C,N*M),1000),REFX1(LLV(C,N*M),1000),RGB(0,30,30));