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发表于 2012-11-13 08:48:12
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1判断语句) j; ~( I: G. P* f
if <condition> then: L* y( M/ J9 u+ I& F, r" b6 U
<statement sequence1>;
4 j8 M' w# L+ o- S3 U3 y7 T elseif <condition> then
% r9 m; k G) t9 b( k <statement sequence2>;+ a# M" [0 k4 l: o
else
- o: v) F; O+ e/ a9 }1 x <statement sequence3>;& F* K! W! D- g3 g8 j2 V2 w
end;
: Q# _% H, ?2 {. O( k5 X7 I如果分支比较多,用:
, o0 _7 t5 C" C5 _( w0 n inspect <expression>
5 o9 s! b& }" L5 E1 W; K when <constant_list> then( T) ^: B8 d2 ]1 y* P! R8 K( m% b, ]
<statement sequence1>;
% ]& y3 c$ z0 I$ O6 }/ E5 n8 W when <constant_list> then/ y: K- [+ C+ h) ^; G3 M4 Q# _
<statement sequence2>;
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else
1 c0 u: N+ m/ l# _ <statement sequence3>;- A5 \+ _0 {4 K I3 x5 z, a
end;
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* h) N% z& l8 q' B/ m& a2循环语句
$ j# C4 B5 T2 [6 J! s: `! d (1) from <statement sequence1>
: D" S3 ~1 M) ]! U+ X until <condition> loop
0 d9 _+ e6 [" t: O' d" I <statement sequence2>;
9 f5 y# o6 I9 Y" s end;& d9 N7 K0 F+ l) ?: R, ^" I
(2) while <condition> loop1 O# K/ \& F% P& |; l
<statement sequence1>;
% m( u% ~0 L4 V/ L end;) D. i I% L! }. B3 m( {
(3) repeat $ n/ t, {6 p* y" y# r& s a! p
<statement sequence1>;7 F0 v' D* g- ~/ `
until <condition>;
* F3 E' J% M9 c1 d (4) for <condition> to <condition> loop! X, s- {" [3 Q; P1 d
<statement sequence1>;
) o( Q! A( X* m$ T# _, t _ next;
/ L1 N1 J. F1 G7 Y3中断语句
e! _' q! n7 k9 x$ N waituntil <condition> prio <integer expression>;
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以上为常用的函数!( M" w0 `8 F0 J
还有很多,如有需要我把资料发到你邮箱里
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