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发表于 2012-11-13 08:48:12
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显示全部楼层
1判断语句
( J7 a' M S+ h1 g3 [9 G if <condition> then0 S$ `% Y, |. T' S( v8 B
<statement sequence1>;
5 f: {. Y1 S( Y4 N6 W9 M elseif <condition> then
8 t0 Y9 |, R* @( G' ~. u <statement sequence2>;
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<statement sequence3>;: g" b; o7 j3 ~9 f% \% y) B( s# K
end;# y; T2 w0 U: H: X: a
如果分支比较多，用：# B; c3 P( B) ^/ E7 ?
inspect <expression>3 k+ z* H9 S- {. N: M- l x
when <constant_list> then+ ]/ ?1 d$ k. A+ a2 s: p
<statement sequence1>;
# g1 o: }1 i. j! z when <constant_list> then
3 a( N1 x1 y/ a. Y, S- K& I <statement sequence2>;+ b2 d& ]0 t: h" F
...
- m6 l a+ T# N$ o; |$ F I8 z else. M! l4 C9 I* r' S) G$ C v- Y
<statement sequence3>;0 Y, T: N( {3 i% H
end;
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2循环语句
q9 d) {, X/ N6 i9 ? (1) from <statement sequence1>
R9 y2 b! `. K3 i% p until <condition> loop
$ B; ]0 t! m i5 I3 Y6 K$ P% [ <statement sequence2>;, n8 p1 r e8 f# `4 }) |" q
end;
: M r8 w' c, O( q (2) while <condition> loop% X, J1 ~0 B: W4 i5 x2 [/ B' W
<statement sequence1>;! v% o0 P3 L) N; F5 {
end;
- G% j# ~8 j/ _* G (3) repeat
, ~; t0 d/ s7 B- [! O& v. L9 x7 { <statement sequence1>;: g7 k: f# `( `+ ?2 w2 N: e8 b
until <condition>;
% G' K- Q6 l; F# b/ G' O (4) for <condition> to <condition> loop1 {" M) U! ]* x& {2 N! L
<statement sequence1>;: v- {' k5 C2 x4 h5 V
next;
9 E$ U" d, b( e3中断语句
$ Z% X6 g( c% ~- I$ m% k0 g waituntil <condition> prio <integer expression>;
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. l* A. O9 k% z5 ^以上为常用的函数！
+ b+ @3 u% i' r/ q1 B6 `还有很多，如有需要我把资料发到你邮箱里 . k0 C. M/ T4 A$ G& n& c7 U7 k
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