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发表于 2012-11-13 08:48:12
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1判断语句' T; j! Z. I. N
if <condition> then
! c( z( Q# y n) C7 l5 b <statement sequence1>;" [7 F- |2 F# I4 T
elseif <condition> then8 n3 Y3 Q: i& Y( M4 g
<statement sequence2>;6 l4 q3 f# S% M9 q3 m
else
5 o$ A3 }: Z" J$ l# c1 g <statement sequence3>;
4 {* l/ x% Z1 e- M4 S% d% k8 N7 Z end;2 p3 B+ h4 z3 }+ H. c
如果分支比较多，用：
7 H5 C, g& U! o4 J inspect <expression>
8 S: s& C: u6 U+ D when <constant_list> then k6 K1 x- z- A% i" a
<statement sequence1>;
8 q0 u! s6 ] x0 ]* ~3 K6 c when <constant_list> then5 V6 L$ c" |0 f9 y. P" Q
<statement sequence2>;, W7 v- m$ K" |: B; K0 o# ~7 Y5 x
...
% p; w8 c- m! Y; m6 x else
3 r! ]0 C; {7 J" b! G- L3 A <statement sequence3>;
; D2 @0 U: d6 ^3 D; ]& w- Iend;
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2循环语句; \& D5 K4 W( }1 ?
(1) from <statement sequence1>8 ^4 X% ~' A# x3 f" h# S/ S7 _: J
until <condition> loop u' ?) |' o2 F7 ?; h: p- J5 U& Z c2 Y
<statement sequence2>;: U1 c/ l) [# R
end;
* }- Q& m* _0 [9 ^0 P9 n4 y (2) while <condition> loop
) p) P4 x: S! u8 [, e1 o' @: G- E <statement sequence1>;6 O! q4 f2 U) A# E+ k
end;
6 c, G: B. ^- }" D (3) repeat
! [( Y9 Q8 L! Z$ A. W <statement sequence1>;
2 S, h$ |; h3 j0 l B1 E, p; K3 ^ until <condition>;
3 C) f# L( U4 d5 z- r (4) for <condition> to <condition> loop
6 Q3 N1 a1 d. k9 ^. {& c5 R* R <statement sequence1>;' U/ _, {0 ?& ~& g* Z
next;8 B8 k' p6 `# I! N* M" m% k
3中断语句8 ?$ `8 k7 V1 ?3 y
waituntil <condition> prio <integer expression>;$ Z3 v& D6 V8 g, T/ K
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以上为常用的函数！
# U$ ~8 c$ M5 B* P$ B还有很多，如有需要我把资料发到你邮箱里 % Q s* U$ ]& g1 N
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