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发表于 2010-1-14 08:46:50
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来自: 中国台湾
本帖最后由 SunVei 于 2010-1-14 08:48 编辑 3 J" }: ^8 G' d0 A, t" o8 I
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Dos_lib ===>(dos_random)
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* h' k7 R; z: t+ Tor (groups.google)
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;;; by Paul Kohut0 U, `) _+ F& h+ f
(setq SeedRand 1)9 J8 I" A) S/ h. _5 Y0 w# v
(defun rand (/)1 M' |' [- m/ B q/ [' t6 j
(setq SeedRand (+ (* (fix SeedRand) 214013) 2531011))
9 o" U7 `# i* x" W (boole 1 (/ SeedRand 65536) 32767)
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& t1 s: l) z$ U2 j" z* e" g;;; edited by Fatty
7 c1 x& @, A4 s H% V* K(defun randomgen (num init / rlst SeedRand init ncount val)
7 L" b9 `7 p/ E* }( l& u8 m8 c+ F9 B1 h (setq SeedRand (abs (fix (* 128256 (- init (fix init))))))0 C4 B9 ~7 T: y0 b
(setq nCount 0)
$ H8 ~) h5 Y: J' ` (while (< nCount num)
3 f% m7 b+ E0 Y8 M& d (setq val (rem (rand) num))
0 a1 i/ K) ^( h7 i6 @; _) H( Y (if (not (member val rlst))4 |, Y1 ?( G* A+ N' t
(progn
6 F4 d$ ?+ T; a j. Q (setq rlst (cons val rlst))
1 K: E% U0 w- K (setq nCount (+ nCount 1))
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+ b& z6 z) Z0 h rlst% I9 k" D4 L/ @( t9 r( v( Y& b
)
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======================================================% h& x+ `& ^$ v9 f2 C
8 S& \: d. U: X6 I. j; d: b, DPosted By Doug Kidd on Oct. 11 2001.
0 P& C' b3 W, c, [# q;;; Initialize pseudorandom seed from time and date c4 p1 ~1 q3 N* o. R5 x- k4 V
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(setq randseed (atoi (rtos (rem (fix (* (getvar "date") 10000.0)) 1000) 2 0)))
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$ |+ U" p: A/ H;;; RANDOM -- Generate the next pseudorandom number between 0 and 10
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! h) g7 L# j" Q& ?3 O( Z$ Z7 G8 ]9 g(defun random ()
( d/ v- N" n+ F1 Q' S- \* g% T) t (setq randseed (* randseed 17381))8 P- D( ^, f- V) w8 i1 @4 R7 A: O
(/ (rem (Boole 1 randseed 65535) 100) 10.0)
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=================================================== w+ ?$ _2 s: l% ?! s) q
' G; |( v6 R+ Y' MLuis Esquivel2 j; p, J n# A z( D; d8 Q3 O
Newsgroups: autodesk.autocad.customization
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;;; Random number generator- h4 o/ ~3 I1 t) {" W
(defun ran ()
U" Y+ d3 S- H& e (setq seed (if seed (rem (+ (* seed 15625.7) 0.21137152) 1) 0.3171943))
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: C4 F% v, J z4 z* w/ BTerry Cadd
' a5 o- Y S5 c& S' X7 C7 ?+ P) a;;; GetRnd - Generates a random number# Z9 M- H& L/ Y: P$ I, I# g0 p
;;; Arguments: 1" X" ?) P$ r+ c6 ~! Q( d
;;; Num# = Maximum random number range
- F N% S9 g* U9 G9 m# X% F" d;;; Returns: Random integer number between 0 and Num#.) Z3 \) @1 K% ~7 O) Y" C
; ]* o/ ~9 P: J q; E1 k* O# \(defun GetRnd (Num# / MaxNum# PiDate$ RndNum# Minus Loop)8 ?2 ~9 M( D% L: n9 F8 V
(if (or (/= (type Num#) 'INT)(= Num# 0))4 h9 v3 |- |; ?+ |9 L
(progn
8 x7 I5 t$ d) [& x/ y (princ "\nSyntax: (GetRnd Num#) Num# = Maximum random integer number range\ngreater than or less than 0."). x/ z. h3 T+ ]+ |
(exit)
7 u" M$ ~) J2 | {9 Y* M4 n5 r );progn
: K: i, X0 R4 {$ n' \$ H% C3 ` );if: l. @! c6 r* e! B5 ?# O- P2 T' Z& Z
(if (< Num# 0)
/ V4 F3 @1 l" M: n2 e* q& a0 I (setq MaxNum# (abs (1- Num#)) Minus t)+ E' x3 h, P, @# l8 P+ K
(setq MaxNum# (1+ Num#))
; ^* `2 {+ I0 R Y# ^ );if( c" s5 j: P+ m3 Q4 U. J( G
(if (not *RndNum*) (setq *RndNum* 10000))
$ S- \/ U1 e$ ~, P( e; s; k (setq Loop t)
4 i0 p# m% \8 ` (while Loop
4 j& K6 g/ g/ M. W1 j2 c* C, T- x (if (or (null *int*)(> *int* 100))/ y. \0 B& ^! J
(setq *int* 1)* M, c/ y8 J/ J1 s7 Y" ?
(setq *int* (1+ *int*))2 R9 D6 e5 X: k' f# T. B; E
);if
& S2 V7 o! X& p! Y0 p( Y5 x/ O% q (setq PiDate$ (rtos (* (getvar "cdate") (* pi *int*)) 2 8))
( k# }* _3 K4 `2 x1 | (cond0 c# d9 X# y. t
((>= MaxNum# 10000)
# Y5 g; }( |: I" {& _* ~+ N (setq RndNum# (fix (* (atof (substr PiDate$ 13 5)) (* MaxNum# 0.00001))))
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((>= MaxNum# 1000)
( {- a* z4 v! C! Y( I/ V (setq RndNum# (fix (* (atof (substr PiDate$ 14 4)) (* MaxNum# 0.0001))))- S/ v; }& K- j' S) D' z
)
, F* e- w% |; q' Z/ S, R' d1 j ((>= MaxNum# 100)9 d2 ^8 t% L( r( A4 m) q6 r
(setq RndNum# (fix (* (atof (substr PiDate$ 15 3)) (* MaxNum# 0.001))))
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: |/ k7 g, I; T1 q6 d/ t# H ((>= MaxNum# 10)
% S8 k3 w, J- Y# b0 J4 m$ i: g (setq RndNum# (fix (* (atof (substr PiDate$ 16 2)) (* MaxNum# 0.01))))
4 t; S$ S! y& Z* w! c6 U: | )
4 {+ r7 Y" I0 h, ?& L' }; P+ [ ((>= MaxNum# 1)) @" ]& u3 h( s) c- F8 ]
(setq RndNum# (fix (* (atof (substr PiDate$ 17 1)) (* MaxNum# 0.1))))
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9 I6 I/ ] M+ m- V& q4 b (t (setq RndNum# 0)): Q% N$ I2 t, h8 E
);cond8 E$ I2 D; _2 v% Z& a% R
(if (/= RndNum# *RndNum*)
2 p' ]2 ]" [+ b5 l, G (setq Loop nil)
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);while* l+ C& }* A& G
(setq *RndNum* RndNum#)
0 O2 M- C! j3 ^- h9 K0 ]7 Q (if Minus
Z" M! v( z5 O6 n- f d& ? (setq RndNum# (* RndNum# -1)) A) ^7 U2 K5 T5 E6 Y3 \
);if$ Q; o1 A. q4 o: j% J4 I5 R
RndNum#% m# D% g% I$ s1 y5 |7 O4 e( o2 V
);defun GetRnd |
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