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发表于 2012-11-13 08:48:12
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显示全部楼层
1判断语句& y5 i, A$ \! G( y# c
if <condition> then7 l+ B h1 X7 ?" p d1 ]
<statement sequence1>;% B( M( y: }1 y* N
elseif <condition> then
. V' H/ u) ?$ A0 m' T# V" W <statement sequence2>;
* l/ O3 h) L* ]& [ else
& q3 D8 @7 s7 g4 O+ f% h8 p6 o6 N3 S <statement sequence3>;5 ^* J. k" a0 [. F
end;6 j1 o' i9 D7 p, Q* `& C$ i
如果分支比较多,用:) h: u9 Z$ m. K' b
inspect <expression>
3 N# k/ e: P1 S7 L3 f when <constant_list> then
- v0 I- ?0 }: v/ I: T n p <statement sequence1>;2 @; J, @6 ?% |8 G
when <constant_list> then
* w6 T- ?: v( j' s# d <statement sequence2>;
8 B% H. q J; {) p ...
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<statement sequence3>;# X/ u v' G! E& [/ m9 ^
end;% [4 N/ x9 v* H* [
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2循环语句! c1 Y6 o8 m6 l/ z# l
(1) from <statement sequence1># U& J' _0 }5 ^2 L+ {" a! B* u. z' E- F9 t
until <condition> loop
/ h! r4 E/ n7 M/ z8 ~ <statement sequence2>;4 @- N; e$ d' D! E/ _! r# Y9 q. v0 f& N( y
end;
) h" O' b+ J* k' [ (2) while <condition> loop% {! ]2 T% h4 j' @! D7 C1 @
<statement sequence1>;7 F2 B7 G, z: P. k
end;
) E6 z$ P9 `& G! y& s: U" F. b (3) repeat - z; b% R* W. N7 l) h( Z
<statement sequence1>;' o. {( X( j% F" V5 _9 c* i
until <condition>;2 i' \" F# U) W* N. _0 y8 Z9 g
(4) for <condition> to <condition> loop0 A% L+ v- |2 a% ?, N! c& {
<statement sequence1>;$ A, @# ^8 {1 g# v F
next;
3 H' b6 I! }* S3中断语句; K* B) Q( t G! \% l- ^* D% d, w" J
waituntil <condition> prio <integer expression>;
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以上为常用的函数!5 |1 X- j: i# o: H$ o
还有很多,如有需要我把资料发到你邮箱里
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