DRAWTEXT_FIX(ISLASTBAR,0,0,0,GNBLOCK),COLORlired;
//E7:EXPMA(CLOSE,7);
//E12:EXPMA(CLOSE,12);
MA20:ma(CLOSE, 20);
E60:MA(CLOSE, 60);
//M1=5，M2=10，M3=20，M4=60
//必要时可以添加MA120、MA250帮助判断走势。
//在K线图上，按中枢理论以MA20的6个以上K线找高低点，画出波段帮助判断走势是涨或还是跌。

DRAWLINE(HIGH>=HHV(HIGH,20),HIGH,LOW<=LLV(LOW,20),LOW,1),COLORLIGREEN,LINETHICK2;
DRAWLINE(LOW<=LLV(LOW,20),LOW,HIGH>=HHV(HIGH,20),HIGH,1),COLORLired,LINETHICK2;
//高低点之间的连线

DRAWLINE(HIGH>=HHV(HIGH,100),HIGH,LOW<=LLV(LOW,100),LOW,1),COLORBLUE,LINETHICK2;
DRAWLINE(LOW<=LLV(LOW,100),LOW,HIGH>=HHV(HIGH,100),HIGH,1),COLORwhite,LINETHICK2;
//高低点之间的连线

通达信：

DRAWTEXT_FIX(ISLASTBAR,0,0,0,GNBLOCK),COLORLIRED;

M10:MA(CLOSE,10),COLORGREEN;
M20:MA(CLOSE,20),COLORMAGENTA;
M94:MA(CLOSE,94),COLORYELLOW;

A1:=HIGH>=HHV(HIGH,20);
A2:=LOW<=LLV(LOW,20);
DRAWLINE(A1,HIGH,A2,LOW,0);
B1:=DRAWLINE(A2,LOW,A1,HIGH,0);
B1,COLORRED,LINETHICK2;

A3:=HIGH>=HHV(HIGH,94);
A4:=LOW<=LLV(LOW,94);
DRAWLINE(A3,HIGH,A4,LOW,0);
DRAWLINE(A4,LOW,A3,HIGH,0),DOTLINE;