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发表于 2012-11-13 08:48:12
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1判断语句
8 _4 D# e. ~( E if <condition> then( m" F/ l) z k; R4 \
<statement sequence1>;
6 S! t( X* x9 B- g. H1 u elseif <condition> then
+ T8 w$ z0 a* u. [ <statement sequence2>;
! W/ T% R4 Y' \& |: H( s else 3 v% B" r( g# t4 n" f' w- @4 e6 Z
<statement sequence3>;
& {: y1 ?8 b9 {0 x. _% h( S5 u, K, T end;/ p, F6 i! m# j' _- @( V; F
如果分支比较多，用：5 m/ k: ^' _1 C, b! j
inspect <expression>
# G0 N, l: h! p( b y* c# q when <constant_list> then
* V5 m5 t' O0 D <statement sequence1>;
0 i- q( \* V9 p" t' G& O* L) P when <constant_list> then* m1 x. g* B- i' O% a
<statement sequence2>;4 H) n& N A. G! Q6 y' ?
...4 ~% G) m) Z& o1 B
else
+ S/ o! g6 u5 k% a) B9 b! R9 D <statement sequence3>;
9 P$ ~& g6 p0 v3 _8 A8 l9 c6 e& Dend;% Y8 M i4 h7 `) l$ r3 H
$ o0 v' P( Z2 P" d$ ^! o2循环语句2 e. c0 j% |; u' G/ p1 l' A
(1) from <statement sequence1>
$ y6 `% g$ ^* o! { r* K until <condition> loop
: h6 C& u+ b" N$ D1 p4 L# Y2 V <statement sequence2>;# H& k1 _3 M8 k; c7 q
end;' b6 B' c% g) b+ |4 N6 l! c) H
(2) while <condition> loop
2 m) U W4 G: H# p <statement sequence1>;. Z" y0 L* Q- M4 B2 Y
end;
) k1 H) _' G& U& G8 _; R (3) repeat V0 H$ b' Y8 m$ X- u* s
<statement sequence1>;
5 [0 y9 S2 L' h/ ]' K6 I/ f# X until <condition>;
- v; ~# ^- P. s4 j9 V4 l (4) for <condition> to <condition> loop1 ?6 e! Z, g. M, Y( P! L
<statement sequence1>;
! q+ F1 d* Y# M1 Y" z/ t" Z6 E8 { next;4 ^ U1 P/ k: f+ `5 c( L6 K
3中断语句
$ k5 W$ ]7 O( ~+ \$ Y waituntil <condition> prio <integer expression>;, w2 ]) Q; R) l3 f6 R* F- e
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以上为常用的函数！0 ] u# @! T8 E6 y+ Q& P3 `
还有很多，如有需要我把资料发到你邮箱里 ( B3 ^9 F0 a$ B" I& L
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