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发表于 2012-11-13 08:48:12
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1判断语句/ e: F* L/ M) p& g6 K' U
if <condition> then9 A# ]1 i4 f) W& o- g0 Y0 t# r
<statement sequence1>;
& O3 H0 R9 S' ~1 Z, y elseif <condition> then
( x% q& q+ a, d <statement sequence2>;. ^8 X+ Y, X" V' ]. K/ b$ U% G
else ) O) @; F9 s7 F: O
<statement sequence3>;
; F; {9 P9 [7 u( t end;
" N" c n7 F! n W7 ~; n! P. H$ Q如果分支比较多，用：
; Q( j( G8 N% `0 p: m inspect <expression>) X. t# {# o: p0 Y) i/ b* r$ o
when <constant_list> then
- g4 _! R- X, s& W& f <statement sequence1>;
" S$ i- B- K* f7 q" q5 J0 I when <constant_list> then
* t5 i# m4 t& k7 n <statement sequence2>;
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else
$ {# Z1 \ {! a( X1 i6 f. K: p <statement sequence3>;
' s; d" G9 Z. C7 nend;
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2循环语句
: g& `* @4 N9 w& Y (1) from <statement sequence1>
/ k0 i3 _8 \6 r h8 F until <condition> loop
( ^! u' d- R; i3 L <statement sequence2>;
5 ]% C2 d; S$ H% A$ L end;8 W0 P1 ~* o" N. C4 B r
(2) while <condition> loop+ z7 I- B+ V1 d) t$ ^% H: q
<statement sequence1>;
) G5 h) n2 t4 v b4 _ end;, O& T& M& ~/ X1 _- l+ V! L8 t. `8 e
(3) repeat
: G! F5 m; o+ _! `9 l <statement sequence1>;
3 A. P8 a& x9 v" @" r until <condition>;
& s" V7 {9 @" z1 }; p9 A" ~, S (4) for <condition> to <condition> loop- r# l. r' v, w* s4 X Q
<statement sequence1>;+ H6 |0 R. _0 F9 ~" d
next;) H% x+ E! J9 s1 L
3中断语句8 O; q) [2 m& `+ X0 }1 k
waituntil <condition> prio <integer expression>;
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以上为常用的函数！& h& E+ B* X. G7 c
还有很多，如有需要我把资料发到你邮箱里
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