"KILL=453.

不学无术

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9 w# _* q6 T" X+ W程序如下：
* ^; s* u9 _2 c( t1 jMODEL 1
- L2 p! n! v  F6 N9 f( TCONST Tmax (VAL:500)
' I+ {+ O: d) @2 vIm (VAL:30.e3)  
T1 (VAL:2.e-6)  
( Q, o1 w0 \- C- ~T2 (VAL:50.e-6)  
m (VAL:5)
  ]2 H/ U. k6 x! x1 k8 Ac (VAL:3.e8)  
v (VAL:1.1e8)
; q: i5 b0 B5 D- f7 c7 PIo (VAL:1)   
z (VAL:6)  
8 _3 F& F# ?$ N2 ~( bINPUT 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,
4 u+ I9 r9 b& ?, bta,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))
6 C0 K: G' a1 kFUNCTION U0(x,tr):=60*Io*z*b*(c*tr-x)/(y*y+sqr(b*(c*tr-x)))
2 x- }" a' P6 y5 [HISTORY
) [2 j% X/ j. H" _# bUrAP (dflt:0), UrBP (dflt:0)
UrAN (dflt:0), UrBN (dflt:0)
UAP (dflt:0), UBP (dflt:0)
6 M7 Q: U/ L) x9 j2 tUAN (dflt:0), UBN (dflt:0)
' d6 h5 ~2 Q) A- S) A$ y- l8 mINIT
" o2 e- A9 y+ t3 D7 j) Xdt:= timestep
3 z7 ?# k9 a9 v" n$ Z" p8 _b:=v/c
L:=XA-XB
. y3 O4 k" z2 ]FOR Tj:=1 TO 2 DO
if Tj=1 then
; s3 ^+ S; ?5 d7 X) O) J6 {1 [x:=XA
5 W+ L/ U8 |5 n0 Y, celse
x:=-XB
6 _. [- U% _. b6 M! V. Iend if
ta:=sqrt(x*x+y*y)/c
tb:=sqrt(sqr(x-L)+y*y)/c
1 Y4 V% U9 _* g# f6 [FOR Ti:=0 TO Tmax DO
Tr:=Ti*dt
if Tr>ta
then
if Tr>tb+L/c
then
) }+ H  F; i1 zUi:=U0(x,Tr)*(f(x,Tr)-f(x-L,Tr-L/c))
else
/ _% ~. J4 F/ e% \& EUi:=U0(x,Tr)*(f(x,Tr)+1)
end if
" {8 E( ?0 Q8 M5 ^2 ?" D/ R+ Q. velse
Ui:=0
  q2 l! w. @* q3 C& E/ C$ Vend if
  I" Q0 r# t- T- hif Tj=1 then
& v' r2 S2 \5 G3 N  J( K3 S  ]UindA[Ti]:=Ui else
$ G' s6 l: i, U; G. EUindB[Ti]:=Ui
endif
5 s6 w& z: u% l/ H- {END FOR
END FOR
) u, M' l. o& v5 N% d1 Q6 OFOR Ti:=0 TO Tmax DO  
Tr:=Ti*dt
9 x2 ^. c; t, cIF (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
2 G: ]( s; Z( |! jEND FOR
Ti:=Tmax
WHILE Ti>1 DO
FOR Tr:=1 TO Ti-1 DO
UindA[Ti]:=UindA[Ti]+UindA[Tr]*dI[Ti-Tr]*dt
UindB[Ti]:=UindB[Ti]+
2 |  A' C, \: ]' C4 ~- ?UindB[Tr]*dI[Ti-Tr]*dt
- x" c; w9 X7 {/ ]( o7 Z1 YENDFOR
7 u4 D6 G: F- Z: H! {/ J" d# I! oTi:=Ti-1
# Z. j" r9 i3 j( MEND WHILE
' {7 u0 ^' K: y
Tr:=L/c
7 L0 \* K8 Q6 A( {END INIT
EXEC
UrAP:=UindA[t/dt]+2*delay(UBP,Tr-dt,1)-delay(UrBP,Tr,1)
0 ]- k4 R" [1 Q) x8 O* AUrAN:=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)
! j+ E' Y# o0 ]UrBN:=UindB[t/dt]+2*delay(UAN,Tr-dt,1)-delay(UrAN,Tr,1)
END EXEC
END MODEL

# @1 v! l% V; ?/ Y9 }: g
) r4 ]( }1 C8 G+ P

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？