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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4 o( r9 j! @' T/ L3 `6 q
if <condition> then
) J# ~/ k6 j$ [3 V <statement sequence1>;
0 t K( L# a b9 q! D, n elseif <condition> then
! h y5 Y6 a; r/ W6 }1 N) S! T <statement sequence2>;
" b! V: y8 I/ D, D else % @" C& d/ l5 F8 A& a
<statement sequence3>;, M" q3 C9 l, d- _5 u' O; E$ Q) F6 X$ G
end;
: Q) r7 `' x/ ~1 L* P# D, n0 p8 b. E如果分支比较多，用：$ \3 Y) M) C) Q$ U& F
inspect <expression>4 W8 B" _3 J$ t4 X9 N' A* C( X# u' @ _
when <constant_list> then
$ `" e. n) V4 Z' D <statement sequence1>;
$ y' c+ X ?$ a) E+ x when <constant_list> then
3 W5 v' e2 c# @7 ]9 h <statement sequence2>;3 X" y% w2 n1 s
...
+ s8 L4 ~, ^9 u- y else
: ^% X' X# a" ?2 e$ S, F <statement sequence3>;
$ b# {8 @* T2 R! e* [! U3 V. `end;
/ X6 I. h* M& u6 G. R: R' ?0 P0 L6 n# R2 U+ u4 ?& X" Q/ ?4 {
2循环语句
4 f" p0 P' S5 o* K) ]" F4 {4 C" f$ { (1) from <statement sequence1># y+ i0 a- k. p6 J2 R7 N
until <condition> loop
( b. H5 `! Y! k. }4 s <statement sequence2>;
4 F" u' B2 { R7 i7 \: V! l- W F end;% b5 O& o6 r0 M0 H
(2) while <condition> loop- O! i1 m6 ^" b. f* _' c
<statement sequence1>;' Z4 X4 B: V: b7 s, _1 }
end;
& g/ \, _6 O5 W" ~: X0 V (3) repeat + e+ [! {5 `8 ~
<statement sequence1>;$ g9 P7 Z8 ~/ H3 ^) \' t4 p8 C
until <condition>;
/ u7 v, l+ T* F: Q3 [. f& U (4) for <condition> to <condition> loop
* j& p7 h4 J0 A7 u <statement sequence1>;
1 [; a/ ]7 u3 u- n next;, ?3 [6 K8 ~, s Z7 W
3中断语句9 Z) g0 m) o# I W9 u# `' J
waituntil <condition> prio <integer expression>;, z! v* U0 }) z/ a* g6 }9 v
9 ]4 U! ]; k# @. s" x$ u5 S( q; }
: H" B' N6 | V4 `# z' u4 X- t. V8 t: E以上为常用的函数！# G& m0 s) ~0 R
还有很多，如有需要我把资料发到你邮箱里
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