四角公式图，放入交易系统。方便四角效果出来

MA5:=MA(C,5);

MA10:=MA(C,10);

MA30:=MA(C,30);

MA60:=MA(C,60);

MM:=MIN(MA5,MA60);

MM2:=MIN(MA10,MA60);

DRAWBAND(MM,RGB(250,0,250),MM2,0 );

HM:=MAX(MA5,MA60);

HM2:=MAX(MA10,MA60);

DRAWBAND(HM2,RGB(0,255,190),HM,0);

DRAWKLINE(HIGH,OPEN,LOW,CLOSE);

KK:=MIN(MA5,MA30);

KK2:=MIN(MA10,MA30);

DRAWBAND(KK,RGB(0,255,190),KK2,0);

MA(C,5);

MA(C,10);

MA(C,30);

MA(C,60);