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发表于 2012-11-13 08:48:12
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1判断语句
( @/ R+ Y5 U4 R6 x if <condition> then1 b1 m: I3 V: X/ e. f0 E
<statement sequence1>;. i: o. f. D$ P4 |- o# O6 n) l
elseif <condition> then3 u/ w& h/ X' H/ b6 y/ _! I
<statement sequence2>;
6 t) T$ N; J6 G+ A8 s4 y else
6 J# ~: ]: v4 k. H4 k; c6 j <statement sequence3>;
% `$ F; C4 J- [ end;
6 `4 u2 B6 k2 r9 h9 m8 c如果分支比较多，用：
! [+ k8 `/ S, n) X7 v+ c: q) y inspect <expression>. c$ E0 L: M. ^% F- b8 v
when <constant_list> then
# W! u5 b8 T0 i+ W: [7 R <statement sequence1>;
/ {& j; n# J2 d. {2 A( D6 ] Q3 T when <constant_list> then
: A6 B) }- p$ }: |; V7 ]4 } o <statement sequence2>;
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else
) a {- o$ ]4 U5 c <statement sequence3>;- M z$ J5 J% {' [0 b
end;
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" t7 |1 G7 s' Y8 l+ |9 w2循环语句
* A7 @6 t- Z0 ~$ j/ r! Q. | (1) from <statement sequence1>
4 v* I, h. c+ N `4 k) }4 |/ E( N until <condition> loop
, P4 H! l. m( j <statement sequence2>;
5 c2 I$ D0 G R end;
0 H* t9 @7 }- q (2) while <condition> loop
, K8 z2 R2 @! ] <statement sequence1>;: M. Z# G/ s5 u$ _$ f: t
end;/ K6 L7 q( B I3 Z6 o+ O* B5 o9 y
(3) repeat
/ b+ t! K1 @7 i! F9 c <statement sequence1>;
5 z! h+ e6 F; y" c0 K4 r until <condition>;/ h @! Y0 u J
(4) for <condition> to <condition> loop
5 ?4 ^1 V0 ^4 m! P7 c <statement sequence1>;
1 C b5 ^; i) S* v" q) U4 n next;
7 L* \9 x$ N9 @/ D% D' P3中断语句* ?6 p* z. E' M# ~
waituntil <condition> prio <integer expression>;9 t/ Y! ^% D5 M! x& y) g
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& I1 S% `) w) L2 D3 W ~6 n以上为常用的函数！. D3 w; B' x. Q! h# B) J3 c/ h7 h
还有很多，如有需要我把资料发到你邮箱里
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