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发表于 2012-11-13 08:48:12
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1判断语句5 U( `4 J5 S7 \2 b& e; [# X; s
if <condition> then
) k) z q% o) B0 z. V- R2 Z# B <statement sequence1>;
* w3 `. }2 ?8 b% p- v elseif <condition> then
) A/ M+ M$ U: ] <statement sequence2>;/ l% n$ x. I/ F0 ]# N. [
else : T/ c2 N7 J/ }4 l$ A) m( R7 c
<statement sequence3>;
- n4 W$ [/ u* F# {2 f: ] end;1 N3 C k7 L( f
如果分支比较多，用：2 m7 B0 A4 b2 o8 |2 T" G
inspect <expression>6 Y! d/ R) E3 C: s. z! _
when <constant_list> then
: R$ n: E2 \0 y0 x% O# p8 ] <statement sequence1>;
* o) W& o5 ?5 L! G3 t, `. L when <constant_list> then
- e& K2 f$ M$ D8 F" F <statement sequence2>; U! Z' Q5 ]2 n' u
...
# F, L5 `" G* M+ F: K. M. b) R else
5 \# F* Q o* { <statement sequence3>;7 U* i- [1 ^+ W! t7 b
end;
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2循环语句
1 `1 j; _% X' V; g9 w. w ~ (1) from <statement sequence1>- A6 ~3 F i9 e5 _' n
until <condition> loop
+ G! |. _" X8 o( T6 u <statement sequence2>;
x( J" l9 d6 r# M8 e- Z end;+ m4 V+ u8 Y! E6 n s; |4 t, B. z& ]
(2) while <condition> loop! Z! s7 N+ n' i: V) F, L
<statement sequence1>;
4 g' |3 @/ W+ L# y G9 C0 u4 S end;
K' Y8 U# _* u2 _1 R6 E6 E8 J (3) repeat # X; W/ g3 i# r# e4 ~3 m# Q
<statement sequence1>;
( H( @* `) J; d! y" A- ]& e until <condition>;
- z% c0 C7 f9 u, N: m (4) for <condition> to <condition> loop1 K+ U3 ~6 m! F2 x n
<statement sequence1>;
& O; G$ v8 l! E1 f' }4 T next;
7 t# {2 N# b& L0 Z( W( \4 }3中断语句& a/ O6 b3 y% {! _" G
waituntil <condition> prio <integer expression>;' o3 S/ O w% ?: S) G: {5 g) a1 {. b
# }, v" }* m6 Y0 P9 Y: D1 [1 I4 P' Z4 i. B( x
以上为常用的函数！; u, y: P" {6 z# p* ]9 ]
还有很多，如有需要我把资料发到你邮箱里 8 ^/ R+ a; l9 I6 A
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