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发表于 2012-11-13 08:48:12
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1判断语句
3 @# k, K) z% \7 | if <condition> then
5 Y+ O! y' }: F <statement sequence1>;
- @2 K1 G6 E/ B$ \; E4 Q. K elseif <condition> then+ f8 \3 M5 ?' E1 Z4 c& P
<statement sequence2>;/ u- g. M* w) K) B3 Z/ Q& U6 D
else
. f$ }% y& V3 t; l1 K- ~ <statement sequence3>;' X, o6 s$ i7 R2 t+ b6 z& K2 w
end;
% _. |6 h5 F7 p9 S( a如果分支比较多，用：
2 m+ B6 M( W$ S7 o' y* C7 K- _ inspect <expression>' N; K, Q5 {! F7 U8 V2 K5 ~: a
when <constant_list> then
" I5 W( C3 U3 U% _* H <statement sequence1>;
) |: `0 t$ `& R when <constant_list> then
! F4 B3 N& @& L* I& w <statement sequence2>;
9 S ]1 r: `. t ...- _. [# d8 O# `! h
else
7 N8 Z7 D1 ]8 q+ G) B <statement sequence3>;
3 M& V2 [- c+ P' ^5 g' ]end;
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7 T) m( ^# b, _" y2循环语句
, C% ^0 z. m: R% F- ^2 U. d2 w0 Y (1) from <statement sequence1>
; V7 ]3 M/ M* D7 w& R {- k0 m; O until <condition> loop
" b0 _ {' w) h# z: y <statement sequence2>;4 G6 f% ]6 e) W( |7 h4 A
end;. p+ D- g3 s; y. W
(2) while <condition> loop
! Q; D5 c j+ f. I) R <statement sequence1>;
+ d: ^+ m, `# d$ \8 T! t3 J end;
5 [1 r$ b' e2 }, }* A (3) repeat / _0 S- r3 L U
<statement sequence1>;/ l. N; C3 s$ Z M+ ~9 B; k8 k7 F/ J
until <condition>;9 }) v) ~% q* S7 B T* N
(4) for <condition> to <condition> loop5 K# F" `0 ?8 O8 O5 C4 R
<statement sequence1>; F0 G8 K4 f: N1 I- x: n
next;
. C( E) Z# {& q B# _3中断语句) q7 H; o' D! K
waituntil <condition> prio <integer expression>;+ j8 T5 H( a7 F. P& W p
( Y. U$ i! @; ?0 V1 S% C# o. T# k! S4 j' H' p( q% J
以上为常用的函数！
& l, k( `/ p$ X还有很多，如有需要我把资料发到你邮箱里 3 x( p0 J* J! ]# g
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8 ~" Y' V9 N W \" T) c+ }% Q / {. J g- }9 \
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