"KILL=453.

不学无术

报错：
3 r: u6 d. M0 Z" M5 `6 hThe 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."
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程序如下：
MODEL 1
CONST Tmax (VAL:500)
Im (VAL:30.e3)  
T1 (VAL:2.e-6)  
* @- K' A) q( {$ T) N3 j" v# D% bT2 (VAL:50.e-6)  
7 L; x( ~5 H4 a- f( qm (VAL:5)
" v0 N& X  k' X! C2 d- `0 ~c (VAL:3.e8)  
v (VAL:1.1e8)
) o: t3 ]; ^& t1 _, J4 `Io (VAL:1)   
/ D5 N. A$ d1 w: J( @  p8 kz (VAL:6)  
' g& a' w8 I, o5 w$ h& O1 Q. YINPUT UAP,UBP,UAN,UBN  
6 ~' V* P5 a# c* JDATA Y,XA,XB  
OUTPUT UrAP,UrBP,UrAN,UrBN  
VAR UindA[0..1000],UindB[0..1000],dI[0..1000],
5 v8 T( |& G. ]& ~' S: \0 hTr,Ti,I,e,dt,UrAP,UrBP,UrAN,UrBN,
" h& A# A( U' G+ xta,tb,b,n,L,x,Ko,Ui,Tj
* [% q- B  _2 K3 X) a/ K$ QFUNCTION SQR(x):=x*x
* a( s/ J% S3 \6 w  v* O7 _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)
$ W: J- ~5 I. m* M5 D- S/ A3 mUAN (dflt:0), UBN (dflt:0)
INIT
4 \( X2 D. ]1 Z% Hdt:= timestep
b:=v/c
L:=XA-XB
FOR Tj:=1 TO 2 DO
8 G0 F' m  `2 J9 sif Tj=1 then
x:=XA
$ x% k& ^2 p: q. Xelse
x:=-XB
end if
ta:=sqrt(x*x+y*y)/c
7 D& G& s  |! @, v# \. C/ Etb:=sqrt(sqr(x-L)+y*y)/c
FOR Ti:=0 TO Tmax DO
5 L: T  W1 Q/ F! v7 F1 e' v8 BTr:=Ti*dt
! I8 v# C( k8 C+ Lif Tr>ta
7 b5 n9 g9 F7 r1 n3 Z" _then
4 w% ?, o1 t; @5 e: T! Kif Tr>tb+L/c
3 c5 _! @# x- r8 P7 s8 h9 k$ R. U/ o* Fthen
4 e% `) a4 n8 F9 Z$ F- _! v- F0 _Ui:=U0(x,Tr)*(f(x,Tr)-f(x-L,Tr-L/c))
5 p/ c4 R2 |; B8 ]2 ?% C; p* velse
6 x1 w) S/ v$ q& dUi:=U0(x,Tr)*(f(x,Tr)+1)
end if
3 O$ c' D8 i) @else
0 w: `, h7 [- _& MUi:=0
+ p' _, o, B# @end if
+ d' L  N0 w0 F9 D/ o+ Qif Tj=1 then
UindA[Ti]:=Ui else
  e: x% L: v  k1 J4 G2 W* \UindB[Ti]:=Ui
endif
END FOR
# e" e4 {" j6 \/ hEND FOR
3 Z4 ~  l" O- T) B- E6 o9 ~, sFOR Ti:=0 TO Tmax DO  
Tr:=Ti*dt
IF (Ti=0) THEN dI[0]:=0
0 f" C; i2 r9 u1 e1 gELSE
8 C( S. K7 g7 t3 Q3 m( C3 x/ ee:=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)
/ J  p" c* c1 }) X+ b) @: ndI[Ti]:=I*((m/Tr)/(exp(m*ln(Tr/T1))+1)-1/T2)
8 t) z- q6 @, j! v  ~9 W* D3 e4 cEND IF
/ s, c) }4 l% M6 H4 ?END FOR
  S( l4 h; @) r8 gTi:=Tmax
( X  M( v+ K: D4 j' b' TWHILE Ti>1 DO
FOR Tr:=1 TO Ti-1 DO
UindA[Ti]:=UindA[Ti]+UindA[Tr]*dI[Ti-Tr]*dt
5 o0 F' u8 c! J$ D' \/ D" a7 UUindB[Ti]:=UindB[Ti]+
. U/ R0 f# s9 K' y2 FUindB[Tr]*dI[Ti-Tr]*dt
ENDFOR
& A& u' T) K) S8 `+ O$ bTi:=Ti-1
END WHILE
- B+ e# M) P9 Q, f
Tr:=L/c
END INIT
EXEC
- N* i# r( j2 g6 G) ?& a7 _UrAP:=UindA[t/dt]+2*delay(UBP,Tr-dt,1)-delay(UrBP,Tr,1)
UrAN:=UindA[t/dt]+2*delay(UBN,Tr-dt,1)-delay(UrBN,Tr,1)
UrBP:=UindB[t/dt]+2*delay(UAP,Tr-dt,1)-delay(UrAP,Tr,1)
UrBN:=UindB[t/dt]+2*delay(UAN,Tr-dt,1)-delay(UrAN,Tr,1)
END EXEC
1 l- D0 m3 K  N, J3 e) n8 o! R$ nEND MODEL
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不学无术

找不出错了，有高手吗

点电灯

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？