"KILL=453.
报错：The current group of characters is interpreted as a name beginning with character other than a letter.The first character of a name must be a letter."
程序如下：
MODEL 1
CONST Tmax (VAL:500)
Im (VAL:30.e3)
T1 (VAL:2.e-6)
T2 (VAL:50.e-6)
m (VAL:5)
c (VAL:3.e8)
v (VAL:1.1e8)
Io (VAL:1)
z (VAL:6)
INPUT UAP,UBP,UAN,UBN
DATA Y,XA,XB
OUTPUT UrAP,UrBP,UrAN,UrBN
VAR UindA,UindB,dI,
Tr,Ti,I,e,dt,UrAP,UrBP,UrAN,UrBN,
ta,tb,b,n,L,x,Ko,Ui,Tj
FUNCTION SQR(x):=x*x
FUNCTION F(x,tr):=(x+b*b*(c*tr-x))/sqrt(sqr(v*tr)+(1-b*b)*(x*x+y*y))
FUNCTION U0(x,tr):=60*Io*z*b*(c*tr-x)/(y*y+sqr(b*(c*tr-x)))
HISTORY
UrAP (dflt:0), UrBP (dflt:0)
UrAN (dflt:0), UrBN (dflt:0)
UAP (dflt:0), UBP (dflt:0)
UAN (dflt:0), UBN (dflt:0)
INIT
dt:= timestep
b:=v/c
L:=XA-XB
FOR Tj:=1 TO 2 DO
if Tj=1 then
x:=XA
else
x:=-XB
end if
ta:=sqrt(x*x+y*y)/c
tb:=sqrt(sqr(x-L)+y*y)/c
FOR Ti:=0 TO Tmax DO
Tr:=Ti*dt
if Tr>ta
then
if Tr>tb+L/c
then
Ui:=U0(x,Tr)*(f(x,Tr)-f(x-L,Tr-L/c))
else
Ui:=U0(x,Tr)*(f(x,Tr)+1)
end if
else
Ui:=0
end if
if Tj=1 then
UindA:=Ui else
UindB:=Ui
endif
END FOR
END FOR
FOR Ti:=0 TO Tmax DO
Tr:=Ti*dt
IF (Ti=0) THEN dI:=0
ELSE
e:=exp(-(T1/T2)*exp(ln(m*T2/T1)/m))
I:=Im/e*exp(m*ln(Tr/T1))/(exp(m*ln(Tr/T1))+1)*exp(-Tr/T2)
dI:=I*((m/Tr)/(exp(m*ln(Tr/T1))+1)-1/T2)
END IF
END FOR
Ti:=Tmax
WHILE Ti>1 DO
FOR Tr:=1 TO Ti-1 DO
UindA:=UindA+UindA*dI*dt
UindB:=UindB+
UindB*dI*dt
ENDFOR
Ti:=Ti-1
END WHILE
Tr:=L/c
END INIT
EXEC
UrAP:=UindA+2*delay(UBP,Tr-dt,1)-delay(UrBP,Tr,1)
UrAN:=UindA+2*delay(UBN,Tr-dt,1)-delay(UrBN,Tr,1)
UrBP:=UindB+2*delay(UAP,Tr-dt,1)-delay(UrAP,Tr,1)
UrBN:=UindB+2*delay(UAN,Tr-dt,1)-delay(UrAN,Tr,1)
END EXEC
END MODEL
找不出错了::funk::，有高手吗 楼主，很抱歉，我是新手，看不出来问题，但是我又一个问题想请教一下楼主，楼主的MODEL编程是通过什么资料学习的？
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