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发表于 2012-11-13 08:48:12
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1判断语句
% r1 A6 u7 j1 f' a* z8 d1 ~9 g if <condition> then
# l$ I1 c6 U" ~$ U/ \ <statement sequence1>;
+ T/ u! f; J O+ J! c elseif <condition> then
* }9 W% k# u" h6 { <statement sequence2>;/ _) k) x b- `
else
) H- w* }; w* P% x8 X- C# a <statement sequence3>;8 v* e1 S ~7 U0 D) ~# `
end;3 C, N4 ?7 D; ^ n
如果分支比较多，用：
1 @1 m/ @( B" A1 }/ ~ inspect <expression>
' l3 V" M& t3 }2 z* M when <constant_list> then
0 u/ E. O4 G0 v) U/ G1 F! s8 D- Q <statement sequence1>;! Y! B/ ?# ?: ]& ~: i1 D8 N/ X
when <constant_list> then
. f. Q; z. Y8 p: D d* h <statement sequence2>;
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else
6 {( P6 }- f, g/ U8 A <statement sequence3>;& j- @! @7 O8 P k( a) A- V
end;& [3 S+ M( I7 U- \, Q, _
- }& ~$ o/ Q" J4 t' D2循环语句! P$ d$ {2 s8 v. g
(1) from <statement sequence1>
3 [) V3 G- N$ | until <condition> loop; T0 A6 j0 f$ q
<statement sequence2>;
7 h, M7 Z" g1 x; q! H5 F end;
1 e8 t- n/ R0 n5 g+ D# N (2) while <condition> loop
9 s7 a$ I. x$ d' v: O2 O <statement sequence1>;
6 B+ ]+ c+ H2 a2 Z$ Q* K; U end;
4 g( j7 _: ]2 p/ j (3) repeat
+ [3 V+ ~2 d+ z/ A; U- v( ]8 q/ J4 A <statement sequence1>;5 Y; D: V6 n$ l* r! C: f
until <condition>;" y' S% [. X) E
(4) for <condition> to <condition> loop
* @% Z# g4 B J+ W& p <statement sequence1>;- [/ D# i* B1 O
next;
4 ^9 W( i+ {9 I& g, X6 S3中断语句; P& Z d9 q- b
waituntil <condition> prio <integer expression>;
% n; p9 O- Y x4 N
% ?1 F2 ]: y& s; k1 W
: a/ n% I, y* E. I0 g! X- m以上为常用的函数！4 u' i& t g% F0 ]9 Q# A
还有很多，如有需要我把资料发到你邮箱里 6 V. t4 G# n# c) T
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