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发表于 2012-11-13 08:48:12
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1判断语句: P3 l9 S6 Y. `5 ?4 O
if <condition> then' z0 H3 g8 t6 n2 P/ u6 U# M
<statement sequence1>;7 P7 `4 f% n$ ?' M$ M9 p# W, \* n
elseif <condition> then- e: x( z2 V5 {; @) W: ^) _/ T; J, j
<statement sequence2>;
# s* ^" a: I0 S% F; Y else
4 ~7 i1 E1 b" q! A$ h E <statement sequence3>;
6 G [7 Q9 G" L9 z8 v end;
' m- `+ k' }9 r0 R, j! s! T如果分支比较多，用：
; g) R" z; i1 u- i- F inspect <expression>1 w- M; ?7 N. Y) q( I. M
when <constant_list> then
7 t( G( E" ^# `' m3 K3 L. J" p- m <statement sequence1>;
( V g/ y4 z; V0 Z# f; \ when <constant_list> then
5 {% C! V% p4 J% G, c4 G/ s9 @ <statement sequence2>;" F5 t* S( W* T8 I6 `* m
...
5 |7 F! @/ M* v$ s4 p" ^* \ else
$ X3 |9 J8 l A. c4 Z, j. W- i0 _2 ]: i <statement sequence3>;
# ?" t1 a J* d2 send;
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4 c' k7 d7 e0 W% \2循环语句
+ m' I- M) F1 i. D6 L! G (1) from <statement sequence1>
* D5 v5 i6 W; Y7 \( X until <condition> loop
# c$ w/ |1 g! W. S2 \" @ <statement sequence2>;2 ^5 U! _4 H* S
end;
/ z( O0 V3 V, ]2 _ (2) while <condition> loop7 ~ X# }1 P3 l1 ?
<statement sequence1>;
' Q$ T6 }& n3 }. g7 r9 c end;. B% f" ]; y0 Y) a7 ]
(3) repeat 5 @6 \2 x' x% X1 u% V) ~" Z
<statement sequence1>;
% [) M4 l" q9 l. q& h7 Q# t until <condition>;
5 e# _% [& k* l (4) for <condition> to <condition> loop
" J' T" Y6 P- }5 W3 H: S& A5 C <statement sequence1>;
5 }! \2 `; h+ u: B+ y next;, I! M6 o* g7 s
3中断语句/ w: h# }/ S# r$ b& d8 v
waituntil <condition> prio <integer expression>;' ?6 Y7 v2 G; K
# c: c5 }& h; @& L) f
6 I3 D! W: Q5 f! b& d% g( v h( F以上为常用的函数！
: L9 B' b4 s3 q/ ^6 ]' e7 K还有很多，如有需要我把资料发到你邮箱里
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