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发表于 2012-11-13 08:48:12
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1判断语句
8 e% ~0 [! b" H8 ~* g% T3 J if <condition> then
) L2 ? T9 D1 k7 h7 { A) [ <statement sequence1>;
' s# `* l; A2 a$ Z7 l+ R elseif <condition> then
* s# F, q8 @2 s <statement sequence2>;
5 B5 o4 [: X) q8 | else 5 W7 g; y2 K; `% q( O8 {+ \; U; N
<statement sequence3>;: u$ q$ H# B5 \3 H5 M
end;
1 I% b% y+ H/ ^/ `! z如果分支比较多，用：
. ^% \6 k* {# d2 x1 r inspect <expression>
6 O' L2 D3 L2 M L# Z K$ ` when <constant_list> then( u( f# ?( `& ^1 {( \
<statement sequence1>;
' }& y- p# L6 P when <constant_list> then
$ R; T- x, c a2 Y, ^ <statement sequence2>;
6 l9 M$ H: m5 I- `- a- z% e ...% ^; M4 k3 p, r9 Y ?" R
else
+ a( z9 B5 f0 Y3 F: t3 i <statement sequence3>;
! T. c M( W" [+ p% j$ kend;% _8 y( s L7 q. {. M' i) F, j
, A9 F5 {9 n3 t8 j' r- w0 ^& @" M2循环语句
! I, }' Q5 j7 q2 I' _, D (1) from <statement sequence1>, m3 W( ~* h8 u! Y
until <condition> loop
; @& O M, H% ?, [& g <statement sequence2>;" f( V. ?( R" I( I$ Z) {
end;
8 L: a7 `0 O8 e" S! e) r. [ (2) while <condition> loop: w2 a- b8 `% [# Y
<statement sequence1>;
2 A! j4 {4 W. b8 r end;: o8 ?8 R' a# m$ s3 l
(3) repeat ' n% e0 a# H5 S- K6 m/ C" z$ T8 }
<statement sequence1>;
3 S/ z, S# W7 q+ ^0 B6 ^' x/ O* T until <condition>;
, Z4 `2 i3 ^; k' ]4 E( I (4) for <condition> to <condition> loop
8 _' D2 Q. C9 }: c5 G |2 Z- j <statement sequence1>;0 Q7 B. i Z8 u/ h7 I& t
next;
! K" o$ U2 d8 S+ W7 L5 m$ Q9 k. g3中断语句# U+ f& e2 ]2 o
waituntil <condition> prio <integer expression>;+ m! l6 x5 H6 [6 M4 M! J& H8 K
( [! l2 p+ U1 u& C4 k3 _3 }' U, W. ^. O- t$ _: V% r0 |- L
以上为常用的函数！
( o: ~1 N: h3 b5 @' j还有很多，如有需要我把资料发到你邮箱里
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