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发表于 2012-11-13 08:48:12
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1判断语句4 Q" B6 m2 K: `+ m; a9 X! s; m
if <condition> then0 K) h" t7 ]8 w r
<statement sequence1>;- g5 N* o. O: O/ l* }4 e
elseif <condition> then
2 E8 S, I4 k+ G$ E4 Z3 U <statement sequence2>;
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<statement sequence3>;$ f. Z2 @) W9 {. c2 v6 P
end;
6 I* O) d X9 I9 z; l% h如果分支比较多，用：
8 o" C3 Y: w" h2 b( X# u) W$ t$ } inspect <expression>
8 O! c' K7 E: m3 e/ R6 M" U when <constant_list> then7 y4 {' t! n& g1 `! H7 v7 ~
<statement sequence1>;
- P* d7 N& ?) F: f. ^ when <constant_list> then
3 z6 L* {* L6 }3 N7 t2 q <statement sequence2>;$ m% j4 {$ l) E! f
...
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5 y5 h5 L& ~8 d4 @1 W6 q/ X <statement sequence3>;6 F" @" J, a! l: l' M
end;: M4 U7 |: \' Z0 m( P5 r& \8 Z
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2循环语句
2 U0 J ^! H' t/ u# }- W0 f (1) from <statement sequence1>) C- ]% I( k) A2 S" W. |* v
until <condition> loop/ c4 i7 p, d+ i# O* ?
<statement sequence2>;
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(2) while <condition> loop3 n" O T4 P# H& Z# ` ]
<statement sequence1>;
+ {6 l! G# M* ^8 E) m end;
6 Q# s' ~8 J2 \, `0 y& r (3) repeat % z# n0 U( ?' T
<statement sequence1>;; I4 H; x# @2 d/ _, j/ `$ d4 r O* Y
until <condition>;
" @ |- N: O0 x" k' e6 x (4) for <condition> to <condition> loop- |1 s3 `# ^# L$ e3 P
<statement sequence1>;
0 ]. r4 M; [! [. \6 e+ J9 ?6 w next;- Y# |+ t O) |1 H
3中断语句
% F* r/ J, e' N; |/ { waituntil <condition> prio <integer expression>;
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以上为常用的函数！
* G6 x: P# U, L6 Z8 Z+ h( k6 D还有很多，如有需要我把资料发到你邮箱里 2 u, Y/ ~; ~- }: Q
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