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发表于 2012-11-13 08:48:12
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1判断语句4 _0 c( q. ~2 V" c
if <condition> then% Q: d/ S# E( l- \/ c+ h' b$ k# Q. y
<statement sequence1>;
. ~* ?. X- s4 g5 _ elseif <condition> then
2 k: y$ ^; G# r! R; ~- ^! `/ g <statement sequence2>;
4 A) @5 e- s6 E/ h! S" N else
6 A0 P% P% K- c0 @3 j9 Y <statement sequence3>;" ~6 O: I/ q7 M' s! q
end;
, B/ J, i# ?* q) k" x如果分支比较多，用：5 w- T& V. y" o) F; E+ E
inspect <expression>
% Z: a0 _+ L6 \5 z% L when <constant_list> then
/ e' _6 q6 u& ?5 A h. R <statement sequence1>;
- s" i, k0 R1 E( { when <constant_list> then
: V" S8 a2 i* }4 x* |/ C <statement sequence2>;
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else. f1 \# z0 X% y& Q9 f
<statement sequence3>;
1 ]: P( w, M/ y5 hend;/ C( x L0 S/ [6 V
! R" \3 ]+ i. s( y. `2循环语句
. c3 ?- B" x* w X& ~3 W, j/ p% F. z: N (1) from <statement sequence1>
# e; F I& y. E( T3 k" \ until <condition> loop
* P+ h3 X) }& J <statement sequence2>;
: [, F, p4 ]2 i+ D* g" w end;
. H; e7 @. ?: {0 x4 M (2) while <condition> loop
; Z! M# L5 c9 T3 I <statement sequence1>;
6 H: a" C- \* X# N0 ^ end;7 z; g M$ Q! n" H
(3) repeat # D* {+ j J4 B9 G' X. a: k
<statement sequence1>;5 P; ` b) ^! f
until <condition>;
& L) y- j; K5 K9 N6 T (4) for <condition> to <condition> loop
5 R8 z) u3 u) i" d- \ <statement sequence1>;) b# @; p& E: @
next;
5 i! O7 T- J# U0 s3中断语句) Y. O6 k& W0 {, n
waituntil <condition> prio <integer expression>;* j& U- T2 ?9 h. n$ P
[8 b: D% b. H
# m* X0 t7 R* g: ~) B以上为常用的函数！
! e: _8 E, w+ s" K还有很多，如有需要我把资料发到你邮箱里 3 x' F* {4 L" ]8 x' @- o
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