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发表于 2012-11-13 08:48:12
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1判断语句0 q) k; f5 n8 H* Y" v
if <condition> then$ _& ~% \4 r7 V& ^2 I7 t6 [# q
<statement sequence1>;
4 F3 N9 i' r7 s3 G, Q+ _0 a elseif <condition> then
4 b7 j' o+ y" B <statement sequence2>;
( d$ v5 K; b0 a/ k7 k% j6 J+ } else
$ K6 @7 [ W& \ }5 O+ D <statement sequence3>;& S9 X' ?1 D, v! [9 D" m
end;
5 I2 z' m2 M5 S& }* t6 x如果分支比较多，用：
% [& D% z/ G2 s+ W: ` inspect <expression>
8 K. B4 q6 C& [2 N r: k' k& n) ~ when <constant_list> then7 @% V, y9 w( g
<statement sequence1>;
. u* I, U9 R5 d) y+ N when <constant_list> then
- C& \9 a7 A5 }0 h9 X7 H; ? H <statement sequence2>;
0 X9 v, I% o8 A* @7 z4 C5 u ...
+ q7 I) X a; P9 G# L. E else" _9 _. {* j. ~1 O
<statement sequence3>;
, Y; i( G/ N% F0 C+ F, A! E$ yend;. ?5 b% `6 K+ L& Y! b
, R1 r+ y: S, Z/ n: k# V2循环语句- } i$ G2 n* `: W/ h0 n2 V
(1) from <statement sequence1>
2 D3 @( _9 r6 o- u, \7 k3 P8 ` until <condition> loop
$ _5 b1 c: N. m% O; l7 |1 S <statement sequence2>;
0 v) w8 d8 V" G, E$ x5 `# ? end;% y" b2 D; s. g: P2 b
(2) while <condition> loop! m9 _& f+ _! a9 c$ h
<statement sequence1>;
9 K; ?$ M* [ ]8 C+ N end;. y) V# x d7 r* Y
(3) repeat 8 m2 @$ i8 H9 C
<statement sequence1>;. ^7 w! s/ Y. N( W/ \1 [5 u7 D
until <condition>;
$ d h/ p( n1 k2 n% j% I8 p (4) for <condition> to <condition> loop; [8 t% H' Q8 g* z6 I: e& K$ d
<statement sequence1>;' y+ D8 w( J% `+ K( l
next;5 L2 z: v, r# V. |8 P* d' A' [
3中断语句
* c# O* g9 C0 d1 \+ u6 J waituntil <condition> prio <integer expression>;
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0 ]3 F; N+ d) i r
以上为常用的函数！/ s, r6 p# A5 R; F1 a
还有很多，如有需要我把资料发到你邮箱里
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