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发表于 2012-11-13 08:48:12
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1判断语句! q( S Z# R1 ~: ~1 j' ~$ ~
if <condition> then$ b* t. N8 j5 s, A H. \
<statement sequence1>;
: G) R: ?, _; @ elseif <condition> then2 O& f4 |1 H( @3 f2 i; Z- P
<statement sequence2>;& J) W& w4 g- [6 @# n" W; j
else
( j% K3 q: z/ q <statement sequence3>; B v9 I% @! e" Q6 ~% D" s+ u
end;
. H+ ?: J, E# g2 |" |如果分支比较多，用：
2 i+ Y) Y# r! {. T0 M9 x" k% h. L# m; l inspect <expression>
6 x- w# _/ V: R% ~8 E, Z4 Y when <constant_list> then
* {1 M- I' Z( i: s <statement sequence1>;
) v4 L3 B9 X, E; f) ?+ h when <constant_list> then
" n3 K: n/ }4 z# \ <statement sequence2>;
1 \: S$ z/ j$ \0 ]9 p ...
; E4 a5 [ \- k v else
+ n% d, ~2 f4 o5 G _/ a) G <statement sequence3>;# n8 L! }. T% i7 B, Z* p7 @
end;& p6 E% O- C; j. o
# w9 ]' g* G3 y$ v2 k' f( M4 Q2循环语句 K; i' @" }- _4 l( z+ u
(1) from <statement sequence1>" W! k& F$ a& v2 A/ N) \
until <condition> loop/ L5 g& p4 A. i% O/ L0 i
<statement sequence2>;
) c& b' Z2 a) ^' L3 ^" L4 q5 h end;
5 R' S2 H& }; P% E) I (2) while <condition> loop
9 U4 {/ ~/ X/ x! c8 V <statement sequence1>;
3 K3 w, P. G7 J/ A" ? f+ { end;( p8 {4 p6 \0 B4 d
(3) repeat ; ?; n9 S% U9 a6 m6 |% L6 r: ^
<statement sequence1>;
$ L z& _& ?$ R# n2 s until <condition>;9 G+ u _; l7 @- ]( T
(4) for <condition> to <condition> loop
0 {% L2 I# P ~: I, k$ F5 ? <statement sequence1>;
& S- F5 n+ l6 W, \$ ~. G next;
1 e& U' i* Z. \8 i# [+ s3中断语句
# [9 M3 ~ w0 E9 S+ N' O waituntil <condition> prio <integer expression>;3 _! p* U: b, _) L
+ k$ r; Q1 [0 w& m# S- ^! I
r- K9 Z3 o" f" p以上为常用的函数！
8 z2 R: a) A6 i8 n1 q; Q! X5 m还有很多，如有需要我把资料发到你邮箱里
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