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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 ( p) z$ l; T/ k' X! L
! v" H2 k1 k! n6 TDos_lib ===>(dos_random)
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3 e0 P B0 L d7 W% ^% tor (groups.google)3 p# |5 W9 x: J8 N5 [2 q# h* \
+ u1 Y/ C, q9 ^4 Z J' O( D9 C8 p$ v;;; by Paul Kohut- \$ U8 L- |. O1 S2 ^1 W
(setq SeedRand 1)
" h8 H/ n. h- u6 ^* i(defun rand (/)( c( t6 O. Q3 Q- |( p# R; [+ n
(setq SeedRand (+ (* (fix SeedRand) 214013) 2531011))4 T! T" U# i* {* h1 `1 n* p- V
(boole 1 (/ SeedRand 65536) 32767)" Y+ ]% S/ z7 T" `. A: `8 m
)
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/ P* [! k2 T9 D' ?! Z' };;; edited by Fatty: v: R, V, p9 |! Y* _& x: @, E
(defun randomgen (num init / rlst SeedRand init ncount val)( D$ h; d. ]6 \- T/ F
(setq SeedRand (abs (fix (* 128256 (- init (fix init))))))
: U. e) c& d9 j( f d (setq nCount 0)7 i0 j3 v+ [; o( [
(while (< nCount num)
/ U: ~1 z1 Z- U$ G& z, I (setq val (rem (rand) num))- }" k% r( V8 q1 |: W0 {
(if (not (member val rlst)): {1 W& \- _* T" M2 O: `
(progn/ S4 m; J- R2 y4 }- v
(setq rlst (cons val rlst))
* z% Q$ \. c/ t& ]( T) ?' U; z( |$ ^$ L (setq nCount (+ nCount 1)). D$ m/ ~2 A0 q, A' j' C& J; K
)
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)
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0 c1 T0 E* t; w" {====================================================== ~, u* I' w" T1 C# ]+ l. i, G& d
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Posted By Doug Kidd on Oct. 11 2001.1 P+ u ~1 ^6 {4 m h' R
;;; Initialize pseudorandom seed from time and date( h/ [! A( v9 |1 b& U1 P1 n$ @
& `0 I9 V7 Z$ f* y(setq randseed (atoi (rtos (rem (fix (* (getvar "date") 10000.0)) 1000) 2 0)))6 P1 o7 C" D% n# U
9 R' w0 i8 }7 x" O;;; RANDOM -- Generate the next pseudorandom number between 0 and 10
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5 e8 u; S) g3 g, M(defun random ()
. R0 n- W+ W' S! L (setq randseed (* randseed 17381))
6 C: H$ f6 L7 j0 a (/ (rem (Boole 1 randseed 65535) 100) 10.0)9 n4 x+ V$ E1 R
)/ L" s. u: R6 s
% ]# v* H) D2 }
===================================================
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+ m) d/ e! ~$ ^! F* ?# ?+ kLuis Esquivel
6 S/ `' r1 f2 }: m1 ^Newsgroups: autodesk.autocad.customization
8 K# e2 u" _* {. k& a/ G7 H! Q4 W....
5 j3 D1 Y# t1 ^;;; Random number generator
, M$ N @# q" w0 {: c" x8 U(defun ran ()
" d+ V+ A0 B7 n `" G8 b+ d (setq seed (if seed (rem (+ (* seed 15625.7) 0.21137152) 1) 0.3171943))
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Terry Cadd
; ~; @( y% f3 Q+ I;;; GetRnd - Generates a random number* M, |2 f# V C' W0 O& C9 P
;;; Arguments: 1+ [5 ?* C( v' R) I
;;; Num# = Maximum random number range! z- t, M3 @8 f7 C4 w' |
;;; Returns: Random integer number between 0 and Num#.9 o$ w! d6 ]0 S2 [( U( l' i0 `
2 H- @" g) U, _) a) O(defun GetRnd (Num# / MaxNum# PiDate$ RndNum# Minus Loop). b J" A5 k# W6 V# t i
(if (or (/= (type Num#) 'INT)(= Num# 0))
- t k2 e$ |+ N7 H (progn$ O/ ^. @) i) L7 e% F+ v2 A) o
(princ "\nSyntax: (GetRnd Num#) Num# = Maximum random integer number range\ngreater than or less than 0."); H, g, d5 c7 I: Z9 j& r1 S s
(exit)
4 ]" W1 s0 o9 K2 P0 | );progn
, x( |$ O7 z& A/ ]; |1 _& q );if. r0 g, L F8 l( J% O5 E+ M5 m
(if (< Num# 0)
% [ ], g: W0 q* O k b (setq MaxNum# (abs (1- Num#)) Minus t)+ @: K. p0 L8 j1 a8 e5 }4 I% O) Z* A
(setq MaxNum# (1+ Num#))7 p4 T; e$ j; P" S1 g8 r9 i! I
);if
* B7 z" e1 T- r/ B! i (if (not *RndNum*) (setq *RndNum* 10000))& [& s( {& V" \2 c
(setq Loop t)
! q: q3 }% l! h2 x' e( C% t+ v (while Loop% |- o5 R5 i& k) M+ y
(if (or (null *int*)(> *int* 100))& y6 P9 G. g; R+ z- Q
(setq *int* 1). L$ N9 H: v3 c# m5 W
(setq *int* (1+ *int*))
2 h. f' ~* _. n: |9 O" l );if) I% t6 Y/ x1 |* Z7 o
(setq PiDate$ (rtos (* (getvar "cdate") (* pi *int*)) 2 8))
9 `+ M2 s% x& p. X# ~2 | (cond6 y3 f2 j. v$ a: v( ]- O2 R
((>= MaxNum# 10000)
4 n+ |, C) @+ _- g% W3 u (setq RndNum# (fix (* (atof (substr PiDate$ 13 5)) (* MaxNum# 0.00001))))
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((>= MaxNum# 1000): M. Q+ w# Y! K( N; v9 w
(setq RndNum# (fix (* (atof (substr PiDate$ 14 4)) (* MaxNum# 0.0001))))! M: d/ o& \3 g4 v. Y, ?
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((>= MaxNum# 100)
9 l9 n. r* h6 h7 O" u+ [ (setq RndNum# (fix (* (atof (substr PiDate$ 15 3)) (* MaxNum# 0.001))))( B7 V- ~, W' w$ A; E
)
) i. y- b! S% W8 ]0 I0 | ((>= MaxNum# 10)- N* E C1 N7 [3 ]$ p4 A
(setq RndNum# (fix (* (atof (substr PiDate$ 16 2)) (* MaxNum# 0.01))))5 V/ W @1 X- J8 t
)! K. e6 G* a0 a; V/ U' }
((>= MaxNum# 1)
: H$ E# v0 o: [# ? (setq RndNum# (fix (* (atof (substr PiDate$ 17 1)) (* MaxNum# 0.1))))
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(t (setq RndNum# 0))
0 L' P- ~* |! O# Y. t% t, R );cond
: \+ g" ]' O4 t! R6 x: w- W (if (/= RndNum# *RndNum*)8 w9 u: E$ C( j7 B
(setq Loop nil)
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);while) l5 z) a) G, ?* b' f( E
(setq *RndNum* RndNum#)& B, `# B" H: }9 O, c5 ]
(if Minus. q& U2 }+ q/ u+ n _
(setq RndNum# (* RndNum# -1))0 j) E) y* C4 n N- S# L6 g. h. ?# J
);if
' z) d/ U- D3 j! C* q RndNum#! a" }) k' W$ P2 O) R l
);defun GetRnd |
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发表于 2010-1-12 16:16:15
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