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发表于 2012-11-13 08:48:12
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1判断语句
' L& W; H/ E. n" @' a" f1 m) S6 \( y if <condition> then$ O ?3 ~8 H, p6 n2 c6 D4 W
<statement sequence1>;
% ]0 t, R: u& W0 B/ m {' C) ^, K( J elseif <condition> then
( q+ X, `7 c" ?& L; B$ A% p; v6 c <statement sequence2>;
/ B+ w) z& o S- k: y' u else - O: c$ ]! E! l" Q$ J( x$ Y3 A' j/ E* j
<statement sequence3>;
6 b- R. d1 {9 b/ d0 z. Y3 I0 Y end;# x% T4 o# F l4 H' R% t/ ~
如果分支比较多，用：
7 ]9 a3 }9 ?: @; e$ V% i$ c inspect <expression>
0 x/ R" ~) f/ q# z& _% y" i# M when <constant_list> then
. @7 K1 @$ Z* P# V% Z <statement sequence1>;
5 Q$ E3 q1 A; u, J when <constant_list> then
! R9 ~. a; @$ @ R( P% ^; F* x, N8 V <statement sequence2>; ^' j8 }. o8 J( `6 |
...
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<statement sequence3>;
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) e; t' j$ E' f9 I2 Z8 T2循环语句
( x' k' E0 X, g. T) e/ ~ (1) from <statement sequence1>0 N2 z- M8 y, c, B3 W8 F
until <condition> loop
5 l; P2 V7 |& N+ T& k) w5 @' W <statement sequence2>;
4 ~& ]* r4 y7 v7 ?, y end;
# O/ ^; H& b+ A* a$ V (2) while <condition> loop
7 y: S h4 r# v! f: r4 o4 Z <statement sequence1>;
7 C4 Z$ ^8 K9 H" s% I6 N2 m4 O: ] end;
: b5 o; K t; ]# w) N5 ]2 _ (3) repeat 6 T1 O% [6 g g1 _/ b/ z$ Q0 t2 T
<statement sequence1>;. s+ T+ Z: o( R5 y" w/ \- G. _
until <condition>;4 Z( t4 P' z- W+ O2 S7 y
(4) for <condition> to <condition> loop% A/ h# L; B6 V- W
<statement sequence1>;& z7 A7 K+ Y( V# R4 h6 s; V
next;& B& `" S. Q0 b* A
3中断语句
1 n' P+ U# ~1 Y waituntil <condition> prio <integer expression>;, }% _0 _6 ~" M6 v" R% H6 X# z7 e: d: Q
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9 t; \* `# @. f3 Q8 Z% }以上为常用的函数！5 a7 r$ c, H X4 i; W! L3 Q, c
还有很多，如有需要我把资料发到你邮箱里
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