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发表于 2012-11-13 08:48:12
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1判断语句0 G3 S+ _; L6 O$ Y9 R- n
if <condition> then
( ^/ `. n0 l& }+ \3 c. A9 i8 n7 h <statement sequence1>;
% ]) i( e/ _7 I; Z6 R( r8 u elseif <condition> then) h3 x% \, _% A3 e# r6 |
<statement sequence2>;1 ?, {5 x1 [- \+ O" D
else
1 v H; a$ U0 @. y <statement sequence3>;
0 |. p0 J1 E" w# v0 A1 l! G end;
: \4 {+ c% h' M5 Y5 p0 z如果分支比较多,用:' B' n* n3 B& o8 Z
inspect <expression>
) q3 l& U- D. e4 ] when <constant_list> then1 \' z) \2 D( B5 [. W% I. ?. r
<statement sequence1>;6 I" W8 |8 Q3 M5 U7 k
when <constant_list> then1 @) g4 k L# @( l
<statement sequence2>;- U5 R; f' g0 j
...
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<statement sequence3>;
4 [/ d" h/ `/ w$ p- P+ S, V% |4 C3 dend;
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; a& O2 t. E1 u+ x `2循环语句0 q" @9 O4 ], v8 ~; e; w; f
(1) from <statement sequence1>
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<statement sequence2>;
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(2) while <condition> loop
$ W3 `4 M5 e' T$ P% p. P1 Z1 Z <statement sequence1>; Z/ |; a( v6 P& z; D; ?
end;
4 ?. y, H: J% W (3) repeat $ L& ~9 Y5 B( @( {/ z: B
<statement sequence1>;5 E8 ?: ^# q5 D1 W* S i/ c3 b
until <condition>;
$ P! t5 K9 t$ C1 | (4) for <condition> to <condition> loop7 C) I' R3 ]0 _: Z) ~$ P
<statement sequence1>;
5 c" m2 Q7 w: |; `4 c. t next;
+ p/ t+ n! P& L; g, z( R' @3中断语句& Q! H& Q# ^" J, Z( D
waituntil <condition> prio <integer expression>;$ @! B7 A: V$ T9 L. h
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% J/ o0 J$ B! V5 O6 I以上为常用的函数!8 S* A7 b7 \2 V2 Z
还有很多,如有需要我把资料发到你邮箱里 $ b' Y! F( W7 u( e
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