"KILL=453.

不学无术

报错：
7 y% ?# b5 g, @9 gThe 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：
  ^% ~4 J) W9 X! W0 wMODEL 1
CONST Tmax (VAL:500)
2 D3 y" s) {6 iIm (VAL:30.e3)  
T1 (VAL:2.e-6)  
T2 (VAL:50.e-6)  
m (VAL:5)
c (VAL:3.e8)  
% r5 Y2 U8 }8 y! _2 |5 T1 Tv (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[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
9 {; \9 I: y6 tFUNCTION 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)
# H+ o. w8 T# A6 e/ W* MUAP (dflt:0), UBP (dflt:0)
: ^( G, j% [' ^7 XUAN (dflt:0), UBN (dflt:0)
INIT
dt:= timestep
, ^- p8 I' G% h& ^. f; E- pb:=v/c
L:=XA-XB
FOR Tj:=1 TO 2 DO
7 ~3 }6 A$ K9 C1 I. r1 Kif Tj=1 then
" l2 {: Q4 e+ cx:=XA
else
8 P) t' H, Y( E! Nx:=-XB
8 }# N0 s) \1 c- _+ M% Wend if
ta:=sqrt(x*x+y*y)/c
tb:=sqrt(sqr(x-L)+y*y)/c
FOR Ti:=0 TO Tmax DO
4 C& b$ M9 G/ [! U* o% R; wTr:=Ti*dt
; s. [4 J: w1 X0 Q. rif Tr>ta
then
if Tr>tb+L/c
then
- q/ C% m+ b# K" |Ui:=U0(x,Tr)*(f(x,Tr)-f(x-L,Tr-L/c))
else
0 ^8 W& X2 D0 V1 uUi:=U0(x,Tr)*(f(x,Tr)+1)
end if
$ v, x% R5 \7 R& Y$ t0 x- pelse
Ui:=0
" }5 `" N0 Y; W7 O( N) C8 vend if
* [7 a2 q6 S) cif Tj=1 then
$ {. e, \0 X1 _3 |2 S' _+ bUindA[Ti]:=Ui else
+ c! w8 [0 r- K4 e# n  R0 R; q' wUindB[Ti]:=Ui
endif
% m" d' k5 `$ t. Y% C0 qEND FOR
END FOR
, l# z" l0 |) R2 E3 j3 TFOR Ti:=0 TO Tmax DO  
Tr:=Ti*dt
IF (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)
END IF
END FOR
7 w) @8 l" r6 s0 ^0 @Ti:=Tmax
6 v1 c, \8 L% [6 F4 `- }. xWHILE Ti>1 DO
/ u% q; ]- O( V! L  V8 f5 X# nFOR Tr:=1 TO Ti-1 DO
! J, Z0 h$ J' s2 d7 ?7 q2 [4 ?$ ~UindA[Ti]:=UindA[Ti]+UindA[Tr]*dI[Ti-Tr]*dt
UindB[Ti]:=UindB[Ti]+
! l' p' V# g0 i1 Z) r# M+ C' BUindB[Tr]*dI[Ti-Tr]*dt
4 A, p8 H9 Q7 p+ S: KENDFOR
Ti:=Ti-1
END WHILE
" k2 p: R9 r% x3 C2 a8 j
Tr:=L/c
% D' V3 E3 p: W; VEND INIT
% V9 l- s7 t* K9 q' `EXEC
$ j% I9 y" D5 u1 uUrAP:=UindA[t/dt]+2*delay(UBP,Tr-dt,1)-delay(UrBP,Tr,1)
' ~- s6 h- d% K8 ~# vUrAN:=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)
9 \8 U: O7 G' \' ?* V& e- zUrBN:=UindB[t/dt]+2*delay(UAN,Tr-dt,1)-delay(UrAN,Tr,1)
) X$ v& O" q# l( [$ WEND EXEC
END MODEL

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？