{高低点定自动连线}
N:=10;
M:=9;
X1:=DRAW LINE (HIGH=HHV(HIGH,N),HIGH,LOW=LLV(LOW,M),LOW,0);
X2:=DRAWLINE(LOW=LLV(LOW,M),LOW,HIGH=HHV(HIGH,N),HIGH,0);
YDD1:=LOW=LLV(LOW,M) AND X1=X2;
DDTS:=BARSLAST(YDD1);
YGD1