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发表于 2012-11-13 08:48:12
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1判断语句
0 c( _) X6 ]7 H/ y3 l5 r if <condition> then
+ U7 y0 X8 S. F' b2 J2 ] <statement sequence1>;
' A* s3 e/ |9 b# I( m8 j. s; D elseif <condition> then
1 _+ }& ]4 S" b; Z <statement sequence2>;
. V; K* i, b7 ~, _# W1 ~ else 2 B: D0 s2 `$ s" I) t; E* T3 S6 y
<statement sequence3>;) H4 [' r( m9 ?
end;
$ ? c9 s% a& f如果分支比较多，用：
- |/ b1 b: j0 o X0 I5 I: _ inspect <expression>1 u0 x" }5 m7 w! N) ]3 J
when <constant_list> then( X& a+ L6 |" o h( o+ _; R7 D; e
<statement sequence1>;1 ^& B( Y8 x7 U7 [; t$ k; _
when <constant_list> then
' l; a: {) o7 {. g <statement sequence2>;3 o& }- \2 G* C- ]
...
! ?, F* H7 h; n8 J. e2 ?7 A0 } else! Z! M% X. _* \2 m
<statement sequence3>;
) Y$ l; e5 `, h6 V! z5 w8 X: Fend;3 o! i; }. G' g4 ^# J8 y) A8 ]2 W
% i7 _2 }! z; g* k4 x2循环语句
9 U% `9 w+ b" g6 b* i1 n (1) from <statement sequence1>+ ^8 O x) j! h/ }; b& ?! J5 T
until <condition> loop
4 l7 g/ M5 k" o5 ?* A' V( a <statement sequence2>;
! _4 F+ u7 G9 N9 [+ r) @- P9 M# H end;; H, m* T( ?/ m2 {- P7 `9 r
(2) while <condition> loop
+ O) Z' ^9 _, f% U" Y" ^- \ <statement sequence1>;
* ?: o5 g5 K0 q) F0 g1 ]8 g% a6 s end;
) @* {+ G" i0 [! A6 ^. y (3) repeat : ~, K' |; r. ^1 q/ q+ U, w7 S/ [
<statement sequence1>;
" T" _; ^* T7 ]% \7 E$ S7 w until <condition>;
8 I1 I% }% w9 p" n! F1 V! R (4) for <condition> to <condition> loop
# i% m7 I/ G& _3 d <statement sequence1>;0 r0 A/ O! I, O* s, k+ y
next;
5 A" m r( {/ y0 P( q0 Z$ S3中断语句
7 _$ b5 P! x9 A6 {/ q+ q0 L1 \ waituntil <condition> prio <integer expression>;- \5 R+ Q, u* B& ^( T% l' m2 f
$ @0 }; W. E* w. m& D9 a
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以上为常用的函数！9 i9 H# t8 G; G8 t
还有很多，如有需要我把资料发到你邮箱里 / l; S. E/ p9 j. d
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