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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 8 h! y) ?# _- C, i) m
% m2 x$ }+ x4 iDos_lib ===>(dos_random)
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or (groups.google)
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;;; by Paul Kohut" n7 j+ u" T2 h" x
(setq SeedRand 1)
$ t1 _3 _# o5 ^: E9 i7 \(defun rand (/); T4 x) e8 V) |. r* i
(setq SeedRand (+ (* (fix SeedRand) 214013) 2531011))
. t% T4 z3 Z" ?9 a' P! C (boole 1 (/ SeedRand 65536) 32767)- ?* G; s6 x$ l, f: L8 `
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;;; edited by Fatty& j z i- n) B5 a5 I
(defun randomgen (num init / rlst SeedRand init ncount val)) {, G/ f9 M! t& ~8 B7 V
(setq SeedRand (abs (fix (* 128256 (- init (fix init))))))
5 c! y1 {( e+ w3 W7 b ?, u3 T (setq nCount 0)% A A$ O( A. j- M' C
(while (< nCount num)
9 W z \* A. W) X0 E' G6 j9 ?3 e (setq val (rem (rand) num))% l! R: U! x- B
(if (not (member val rlst))& s) x' g6 {2 z4 p
(progn
1 M0 ?$ S# K: l$ [; T# Y (setq rlst (cons val rlst))
5 |" C9 k# H; A* b! o (setq nCount (+ nCount 1))
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)
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rlst- v3 p4 \7 } O5 O
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======================================================+ H! l" x7 [4 \
2 G% Q9 M3 n; ]6 HPosted By Doug Kidd on Oct. 11 2001.( I$ b ^. x( ?& T
;;; Initialize pseudorandom seed from time and date8 S p! `3 b0 ^% W4 P
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(setq randseed (atoi (rtos (rem (fix (* (getvar "date") 10000.0)) 1000) 2 0)))$ m& I1 \$ A6 i5 S, S9 `: L' F4 J
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;;; RANDOM -- Generate the next pseudorandom number between 0 and 10
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! _/ }4 I) A$ g(defun random ()
1 V" b0 p( _3 o9 [" h (setq randseed (* randseed 17381))
. \, O# L+ t( n (/ (rem (Boole 1 randseed 65535) 100) 10.0)
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Luis Esquivel9 o: s$ \) w0 z' F: R
Newsgroups: autodesk.autocad.customization
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/ _$ c' f2 B I6 `;;; Random number generator5 F3 G; F1 S$ ^+ j; U6 n+ I+ f
(defun ran ()
) C: m" B9 q& a1 U (setq seed (if seed (rem (+ (* seed 15625.7) 0.21137152) 1) 0.3171943))' Q3 z7 M$ a+ r' \+ I% t( u
)
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9 n y/ H z+ H& z; @Terry Cadd
& A5 Y a; W: }0 m4 h0 G;;; GetRnd - Generates a random number- z0 R- ]+ D7 F, A3 W
;;; Arguments: 19 q% h& |/ Z J+ Y, i
;;; Num# = Maximum random number range& r+ `& @; S2 r+ R8 [
;;; Returns: Random integer number between 0 and Num#.
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9 K) V* G. T: g. j- U8 Q' i& T! l(defun GetRnd (Num# / MaxNum# PiDate$ RndNum# Minus Loop)
$ m5 j4 i8 v0 A- ^* n (if (or (/= (type Num#) 'INT)(= Num# 0))
% i# I( W0 k% |* y/ r, y$ \4 I (progn
& M/ k8 f# I: E: h. r( E, p (princ "\nSyntax: (GetRnd Num#) Num# = Maximum random integer number range\ngreater than or less than 0.")
) w" ^( Q% G- V; ^( o, H0 j& B (exit)3 G' U2 p" E! A% F; |$ ^, v: c
);progn
. }- P$ Z# V0 ^4 j( |/ ] );if
2 {# Z2 I6 Y/ ?* y* G& P (if (< Num# 0)
- x% \, Q0 Q6 Z3 I/ u' J! J (setq MaxNum# (abs (1- Num#)) Minus t)
/ i; C! ~+ w% D J (setq MaxNum# (1+ Num#))# h3 k3 d" i' i3 R7 K# n& O5 z
);if
3 ^& T A! r; I W( V: y7 l( e (if (not *RndNum*) (setq *RndNum* 10000))7 h7 g/ N9 T) T, t' ?! B
(setq Loop t)
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(if (or (null *int*)(> *int* 100)) u3 _* }9 N4 I" z6 P
(setq *int* 1): u/ p* j2 Z9 F1 V- Q$ f
(setq *int* (1+ *int*))
0 z! n( M: @ D. Y2 @3 \ );if
8 t4 `: z/ {- X! d' z (setq PiDate$ (rtos (* (getvar "cdate") (* pi *int*)) 2 8))3 `, Z, S9 L; U, `! E1 T; e8 n5 Y
(cond
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(setq RndNum# (fix (* (atof (substr PiDate$ 13 5)) (* MaxNum# 0.00001))))
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((>= MaxNum# 1000)$ z' m% P. g* E/ ~: z# A6 p; I! V
(setq RndNum# (fix (* (atof (substr PiDate$ 14 4)) (* MaxNum# 0.0001))))
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((>= MaxNum# 100); R9 }$ U9 Z" P7 {) s
(setq RndNum# (fix (* (atof (substr PiDate$ 15 3)) (* MaxNum# 0.001))))
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((>= MaxNum# 10)0 F$ A2 b' P1 s) O1 ]- N
(setq RndNum# (fix (* (atof (substr PiDate$ 16 2)) (* MaxNum# 0.01)))). [2 S7 y, W3 Y4 f
); b. ^, P7 e! ]- R, m1 p- a
((>= MaxNum# 1)
% O+ }7 m4 y ?) ~, b7 D/ K (setq RndNum# (fix (* (atof (substr PiDate$ 17 1)) (* MaxNum# 0.1)))); Y: N- V5 N" O. z( s- `: V4 G
)
" o9 R2 k) r& g (t (setq RndNum# 0))5 x) y6 V, @" P' Z( ~% c! s
);cond
1 B( s5 ]" Z# I3 c4 ~ (if (/= RndNum# *RndNum*)$ a! L3 U9 L/ w0 p9 f
(setq Loop nil)
% k1 k% W& t3 |, ?% W9 G" a );if
$ j" w: v% |9 } );while
" O# y- K0 v0 l7 [+ S6 L (setq *RndNum* RndNum#)
8 E" I& E+ W+ M (if Minus% y0 ?4 o- v5 T# f* J6 a' e
(setq RndNum# (* RndNum# -1))
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RndNum# M$ Y7 }8 Z6 e3 j0 k2 V
);defun GetRnd |
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