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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
5 O. G4 Y6 h# ]! a% [ if <condition> then
6 E5 G1 w& S# C4 q/ _ ? <statement sequence1>;8 A( L D" e' O
elseif <condition> then
) \0 J$ G7 _; K/ Z! S <statement sequence2>;5 `+ ?% f9 P" K; h, S
else
& I2 C% U3 \$ q' W; x0 V. c <statement sequence3>;
2 j4 g/ O; y# B! w4 @2 J: N9 w end;* B6 c* k: } N! ^2 Q
如果分支比较多，用：
3 h* _: X$ T8 R$ `/ n- A inspect <expression>/ L5 y5 _) z' i- ~/ d8 w6 i$ f/ i$ K
when <constant_list> then
8 v5 }' |/ ^ O1 C% P( W. k4 c <statement sequence1>;
' S9 v$ l2 U# U( e9 [# |1 ^' O when <constant_list> then
z. X- \. {' z9 Q+ ^; L0 T- u6 O- { <statement sequence2>;
- B: ]+ Q, [4 R ...
0 M( M- P& q$ |4 g$ Q else: x4 y/ J& m! V; C, h& ?# g
<statement sequence3>;: r$ Q+ r3 K" m' X1 x S
end;
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2循环语句
% M5 v: L$ F9 Q q$ J (1) from <statement sequence1>4 J4 A9 t8 B: f
until <condition> loop1 I1 M' r9 l- t/ [/ R* i
<statement sequence2>;
. h, o- e! Z7 g) m. n end;: Y8 ~( _* G" o7 q1 x; @
(2) while <condition> loop( @ y( V! {8 x. c) p! X* h- b; \2 j
<statement sequence1>;
2 |' K% t: C. e G/ `* U, G, P2 g end;
5 G5 x$ L6 R7 d% t- e# ?5 i; K& Z (3) repeat 5 q& A! X2 `- p! _ n- B6 Y
<statement sequence1>;% |8 q5 B r( e% a% _+ @# @
until <condition>;; a& @; l8 O1 W$ L D
(4) for <condition> to <condition> loop: J, ]4 D6 s" }* n) S2 T4 _, ~
<statement sequence1>;+ i* I0 h2 ]6 P5 `& m. X4 o+ t
next;( s' T. X$ x2 e x
3中断语句
- n. E$ _4 ^, ?( V8 S) @$ @1 |: b( V waituntil <condition> prio <integer expression>;* a3 R/ E- `: Y2 z
# ^" F/ x4 m& y, ~" J8 c/ a
# m# h! ~4 ?" n& s/ X# w以上为常用的函数！1 N% S. C3 g) P
还有很多，如有需要我把资料发到你邮箱里 , ~2 ~3 P0 S9 h& B
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