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发表于 2012-11-13 08:48:12
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1判断语句) {+ W6 V: a" x$ F0 G
if <condition> then6 t2 {( F& o% d G) s7 r% @
<statement sequence1>;2 P* e F; j4 L" ]% I& S
elseif <condition> then+ f" x! T; ]9 Z2 q3 q
<statement sequence2>;1 G/ e2 N- b1 d! x1 F/ G1 v5 Y
else
3 A- F2 T- ^# k" d9 d <statement sequence3>;
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如果分支比较多,用:, s: T7 B4 u/ J
inspect <expression>
* }: }6 P1 D6 G* u2 v, C when <constant_list> then
7 ^. ?4 p4 v3 Q! w; B <statement sequence1>;
& K/ [2 |) x2 S$ K W8 Q4 c when <constant_list> then" m5 P( G6 u$ J9 ?
<statement sequence2>;$ N- x! @% L: [$ F3 M7 R# l
...
: b7 d8 W. I9 R6 O. t else
+ w$ S: z. [' V @ <statement sequence3>;- l1 }7 |+ E( Q0 f# F
end;
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! f, \& y3 l- X2循环语句
- i) I9 ^; Y; \" p5 {& c q5 v (1) from <statement sequence1>
" ? _: Z5 g2 ? until <condition> loop1 W; Z) H" s# p" m( c. r
<statement sequence2>;
U' q+ {* M: C* _ end;3 `/ K& F3 u+ D
(2) while <condition> loop/ A7 Y7 ^& E- Q. h, S- a
<statement sequence1>;& I0 Q+ n7 b( X2 k$ t4 _) z1 E
end;
5 C: R3 G5 V. d (3) repeat
1 S9 b5 N5 b" Q$ O* ~2 a6 W <statement sequence1>;) J7 L& W1 T5 k6 F; Y
until <condition>;
6 R7 K3 d7 {9 @8 O (4) for <condition> to <condition> loop# @9 F% {" m* [ n' d) S& @' _
<statement sequence1>;
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3中断语句
, q+ k( c/ g: w! u( {. F, g waituntil <condition> prio <integer expression>;! `9 K5 y+ P8 B8 l7 y
% {4 y6 A4 _2 N2 c8 r/ {
3 j* ^' L4 |. {3 D以上为常用的函数!
$ c2 s, L8 L6 V8 R, T: Y" h还有很多,如有需要我把资料发到你邮箱里
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