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发表于 2012-11-13 08:48:12
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1判断语句, {, S* M9 m7 d) C, s" ?- c7 F1 s: O3 z- z
if <condition> then
' F, q; H+ n* }7 Y5 w <statement sequence1>;
3 O" Z7 @' I9 @/ ]9 u elseif <condition> then
% T5 Z- x2 ]7 V9 K9 \ <statement sequence2>;
& u/ k/ X0 s# g8 O9 p! E8 C else ! V6 {4 I/ }% ^; S( p6 Q* z
<statement sequence3>;* W- O: a- y: R$ @# H. C
end;' J, I" I0 Z/ b2 d+ h
如果分支比较多，用：4 \' T0 l ~5 f, j2 l; t
inspect <expression>
1 _# g- ~& U" `! C- d when <constant_list> then2 `5 z1 g1 X+ S! _; I
<statement sequence1>;* W# _ a* w) d- s* T
when <constant_list> then
4 f, E! B) M: R# r. j2 M) J <statement sequence2>;
( _* g$ W. p" D ...
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<statement sequence3>;
8 [1 @# D, n( I0 e2 m. M, A6 }end;, Y8 \3 E, i( m0 ]0 v
) ~ _* Q9 G' L# J7 A( z2循环语句
) q& i/ d3 C% Y8 K4 S0 ? (1) from <statement sequence1>
1 H& @* J. y) t until <condition> loop$ |+ J' x# k5 F$ W! e
<statement sequence2>;' p- t; ~* z7 k# e3 m
end;- R9 `$ n! j$ g
(2) while <condition> loop7 ?3 t. j! O* e9 ~" }1 ?, J3 a- G
<statement sequence1>;
+ v! T7 x! S1 H+ E end;4 y# J' o9 |3 G# P; C
(3) repeat
4 o9 j9 v6 ~% V2 W <statement sequence1>;
. e* V: x, I* b1 u9 | until <condition>;" V& k0 w" m0 z7 H9 d% k/ L
(4) for <condition> to <condition> loop. o' F4 N5 j u4 f1 s
<statement sequence1>;( U! O+ C0 ^" y' |) ?0 F2 x
next;1 m8 S7 x `3 w; n9 ~6 b; R
3中断语句6 L# M/ `& k# M! v! w- [
waituntil <condition> prio <integer expression>;
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以上为常用的函数！- x) T' d5 I( D1 a
还有很多，如有需要我把资料发到你邮箱里
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