"KILL=453.

不学无术

报错：
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; C( L1 u! U3 D4 |
程序如下：
# D. p2 r8 ~$ [0 {) Z. d; ]8 vMODEL 1
CONST Tmax (VAL:500)
. F7 q( }" I8 u& L6 bIm (VAL:30.e3)  
T1 (VAL:2.e-6)  
9 O' u" s2 @% I5 B3 X; jT2 (VAL:50.e-6)  
' t3 g7 O! c2 W5 k" [, fm (VAL:5)
c (VAL:3.e8)  
v (VAL:1.1e8)
Io (VAL:1)   
, o& G4 X" |! ?z (VAL:6)  
INPUT UAP,UBP,UAN,UBN  
2 S8 h; n" |9 ^7 Z" a3 W6 RDATA Y,XA,XB  
2 ^! ]7 H6 E1 b7 r: R* |OUTPUT UrAP,UrBP,UrAN,UrBN  
VAR UindA[0..1000],UindB[0..1000],dI[0..1000],
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
; ]/ ]. ?$ H8 W9 W8 C" B* r( P% E: r6 WUrAP (dflt:0), UrBP (dflt:0)
$ |0 |/ V0 C9 s# Z8 OUrAN (dflt:0), UrBN (dflt:0)
7 l0 L! N( T, m: F9 Q' S: lUAP (dflt:0), UBP (dflt:0)
/ [  c& O* s1 F- V1 w9 QUAN (dflt:0), UBN (dflt:0)
8 M) X$ d4 E" f- f4 n, }9 pINIT
dt:= timestep
b:=v/c
9 V4 O. X- a7 x; _0 eL:=XA-XB
FOR Tj:=1 TO 2 DO
if Tj=1 then
7 t, ?. `& D5 b7 b# L: Z3 u3 ]x:=XA
else
0 G& @  V, n& O7 L/ [4 u- M0 z, gx:=-XB
. C: E/ Y. ]+ I. O3 eend if
" G; j$ Q: {+ q$ nta:=sqrt(x*x+y*y)/c
5 y# \( k. _  Ctb:=sqrt(sqr(x-L)+y*y)/c
! U$ _) N0 n* s7 T& m) {" Z1 N0 LFOR Ti:=0 TO Tmax DO
Tr:=Ti*dt
if Tr>ta
then
4 X% n) u% A7 zif Tr>tb+L/c
then
9 b" N- t+ U( hUi:=U0(x,Tr)*(f(x,Tr)-f(x-L,Tr-L/c))
else
Ui:=U0(x,Tr)*(f(x,Tr)+1)
: n7 R9 Q# A6 f6 `- a1 Fend if
else
Ui:=0
2 S' Y- x% t+ V0 N# I  S+ H. uend if
, n! c4 y9 l1 v) @* Cif Tj=1 then
UindA[Ti]:=Ui else
UindB[Ti]:=Ui
. C  b% ]7 k9 [  L" Rendif
END FOR
END FOR
FOR Ti:=0 TO Tmax DO  
2 r/ A0 Y7 R3 ^2 Q; u$ p, D) z! dTr:=Ti*dt
+ t5 J1 U+ [3 k0 ?( GIF (Ti=0) THEN dI[0]:=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[Ti]:=I*((m/Tr)/(exp(m*ln(Tr/T1))+1)-1/T2)
; I) y) _1 E9 {2 o. yEND IF
  R! V' N, C- b3 p2 I8 A* AEND FOR
Ti:=Tmax
WHILE Ti>1 DO
FOR Tr:=1 TO Ti-1 DO
, a: R' s9 C7 g9 J! RUindA[Ti]:=UindA[Ti]+UindA[Tr]*dI[Ti-Tr]*dt
UindB[Ti]:=UindB[Ti]+
- Q% H; p1 g! |; XUindB[Tr]*dI[Ti-Tr]*dt
ENDFOR
' k: }/ B; I' l. X; }9 dTi:=Ti-1
END WHILE
! H) R* p* {4 E6 h8 v% O
Tr:=L/c
END INIT
: G& L0 z. C/ G' f% ^# D# F* |EXEC
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)
3 W: }+ A) [8 T! n2 yEND EXEC
5 a7 [2 A, k* Z: o: I4 P7 Z; P  cEND MODEL


8 e0 r7 m% u3 B- M5 E  Y! j+ c7 w

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？