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发表于 2012-11-13 08:48:12
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1判断语句6 \' Z7 `- r2 `* Z1 B. X+ x: d1 W
if <condition> then
1 {' { o9 C$ B# e2 y/ ^ <statement sequence1>;/ ]9 Z8 Q+ ~) {9 Y
elseif <condition> then, s/ S" ~ c' M9 ]" g f" L% r( t
<statement sequence2>;
3 ?5 t# M' q+ ?4 M* e7 B/ `* Z/ w else 4 ]! `2 ~2 \: M3 e
<statement sequence3>;
7 }( \4 w' Q6 V end;
, T$ i- i) a. E3 u3 F0 m如果分支比较多，用：
6 o- K4 Q# |* v7 f inspect <expression>( `2 e8 r' b& W: t) q1 q/ G
when <constant_list> then9 @8 M( ?3 ` \; m- m- w' @
<statement sequence1>;+ `# E$ u$ {7 e
when <constant_list> then
9 p& i! o* ]7 o) ~+ t& q. Y; S <statement sequence2>; o" B/ @. Z* P7 l6 g) k5 h
...7 g" L) o( r) y% p9 Y3 O& ^8 B1 N
else, P! J$ ~% d8 I5 ^
<statement sequence3>;
) N F3 r9 [ F2 [, E, [end;
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8 b; c) ~! l- ~4 f2循环语句
+ L8 I' B( W0 U- Z$ D" }9 `5 P8 i5 F (1) from <statement sequence1>
* Q+ e! u9 [8 t( |& d; Y& t until <condition> loop$ C3 M$ P8 p& s
<statement sequence2>;
$ R5 ^. z( w& i: S end;" j2 i) m) J3 B6 J7 Z6 ]
(2) while <condition> loop) D5 C3 Z1 p* P) l/ S. r
<statement sequence1>;
' p1 L% V R! d end;8 Z! H) n' L5 R& l" i, C9 J
(3) repeat 1 c" m/ U5 ~8 J& d; U T3 ~* }$ {
<statement sequence1>;
; _0 K' k$ A3 B until <condition>;8 O3 O, P9 d7 _& d; |0 q) t" @
(4) for <condition> to <condition> loop
( ?+ N8 c# G6 P. _ <statement sequence1>;+ R* y2 Y, U9 R Y% e
next;7 [: V- S0 _4 v4 G% B3 d
3中断语句
. V9 l; m. \4 t' h$ x: M3 g% Q waituntil <condition> prio <integer expression>;
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以上为常用的函数！7 C9 C' [* u4 [* D
还有很多，如有需要我把资料发到你邮箱里 7 m6 M) t. J3 R' t6 H' q5 w
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