"KILL=453.

不学无术

报错：
1 E9 F2 s: [6 g* k& ?. }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."
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程序如下：
MODEL 1
CONST Tmax (VAL:500)
Im (VAL:30.e3)  
) ]5 v5 n+ c* k& xT1 (VAL:2.e-6)  
" q* H8 m/ `6 c7 U- JT2 (VAL:50.e-6)  
+ B/ v1 \8 z6 r$ }& @7 w0 em (VAL:5)
c (VAL:3.e8)  
v (VAL:1.1e8)
Io (VAL:1)   
z (VAL:6)  
5 a; L6 }# V- f& DINPUT UAP,UBP,UAN,UBN  
2 k) r$ y: W  L9 h+ X- XDATA Y,XA,XB  
' Z  ]$ ]# \  a0 J, g6 M9 Z* yOUTPUT 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
5 H" T1 i" s  R- Y# BFUNCTION 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
; J7 R" J( y1 x1 }7 P& x/ RUrAP (dflt:0), UrBP (dflt:0)
  \& ~# G, y9 _" S* ^UrAN (dflt:0), UrBN (dflt:0)
! p4 Y& e5 r2 G! KUAP (dflt:0), UBP (dflt:0)
9 j) B+ E: n" N8 a* hUAN (dflt:0), UBN (dflt:0)
1 N! U* V5 o, q+ vINIT
dt:= timestep
b:=v/c
- E' V. y; X: K; X1 |+ a0 q' HL:=XA-XB
FOR Tj:=1 TO 2 DO
8 D2 d4 d* Z5 Q/ Gif Tj=1 then
. \' M4 |! N& v$ Cx:=XA
else
7 g8 `2 o2 d7 tx:=-XB
. n- o2 I2 z; Z7 Jend if
2 c7 ?# g; Q- s3 I2 f2 s7 W4 |$ Cta:=sqrt(x*x+y*y)/c
tb:=sqrt(sqr(x-L)+y*y)/c
FOR Ti:=0 TO Tmax DO
* l7 ?. F! K6 F$ Q1 j+ }5 t/ `/ tTr:=Ti*dt
if Tr>ta
then
if Tr>tb+L/c
4 s9 Z2 g6 d+ @! \then
Ui:=U0(x,Tr)*(f(x,Tr)-f(x-L,Tr-L/c))
* P# _1 q8 W& B- ]" |else
# C. q7 I% M  I- H. f7 }" y' E  AUi:=U0(x,Tr)*(f(x,Tr)+1)
end if
, J6 B. P8 S+ ?else
Ui:=0
/ O( Y- p3 D, V) xend if
if Tj=1 then
UindA[Ti]:=Ui else
6 y, p) n2 v: RUindB[Ti]:=Ui
endif
END FOR
$ f* T0 C* S; D4 }& y9 e3 ?END FOR
FOR Ti:=0 TO Tmax DO  
0 K7 \7 J4 g3 O) N( r! X' N9 jTr:=Ti*dt
7 u3 j$ |' H, M! v$ {+ KIF (Ti=0) THEN dI[0]:=0
ELSE
/ l4 R; b4 q# m6 Fe:=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)
; a% p$ \* t6 PdI[Ti]:=I*((m/Tr)/(exp(m*ln(Tr/T1))+1)-1/T2)
END IF
) h6 O8 B- i6 L' P, e. R9 R7 lEND FOR
Ti:=Tmax
WHILE Ti>1 DO
) y% G9 S: k- w2 U4 G" }9 F7 q& `- PFOR Tr:=1 TO Ti-1 DO
UindA[Ti]:=UindA[Ti]+UindA[Tr]*dI[Ti-Tr]*dt
UindB[Ti]:=UindB[Ti]+
UindB[Tr]*dI[Ti-Tr]*dt
ENDFOR
Ti:=Ti-1
END WHILE

0 w  s, ^0 r* ETr:=L/c
END INIT
# [1 k4 ^- x4 ?8 M3 J; x! ^# r3 v4 p( kEXEC
1 O( q) @. k9 e; J# W1 m7 A* X, z% p6 MUrAP:=UindA[t/dt]+2*delay(UBP,Tr-dt,1)-delay(UrBP,Tr,1)
2 E6 e' \4 s( X8 E, p, }; WUrAN:=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)
/ s5 j3 B$ r8 U6 X, vEND EXEC
8 H% u/ R0 b* J* T7 Y& rEND 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？