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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
6 g, S( X: N. J7 V$ n if <condition> then+ O, d! E _ E, `1 K+ y: i
<statement sequence1>;' U: P W+ C8 I: |( g
elseif <condition> then
3 l, i1 L/ e+ o <statement sequence2>;
0 c( l& b/ y* g1 a1 T else
u1 [! K! w# ^* X1 Y. Q/ ^ <statement sequence3>;
$ S. E3 E9 n8 B- I end;
4 W/ g& C7 V8 N4 Y0 x如果分支比较多，用：
7 q' V1 v1 K" u. Z4 Q1 u2 Y% s5 @ inspect <expression>+ o5 t" E+ N$ k, `
when <constant_list> then- ?7 _9 G5 N$ i$ B0 ]0 F
<statement sequence1>;' \$ }+ @" [! j1 m+ Q
when <constant_list> then; \$ i; G! |0 V# o+ W, M/ G: l
<statement sequence2>;9 {2 V, Z5 \9 f; b3 q& [
...
3 g8 N3 J1 }( D5 q) ]$ m else
4 Y0 a% Q! W P: |3 o' i5 V1 y <statement sequence3>;
0 ?9 q7 S4 |0 | L- K1 jend;
+ O. m0 v/ S+ i5 {; f( |- E; C# {2 l" d$ w5 m2 J
2循环语句
6 h, }! R! g$ p4 k' i (1) from <statement sequence1>
/ {" t( H7 J6 D; y' H0 s until <condition> loop! Q. s' z" @8 n7 I1 @) k& z7 C4 @
<statement sequence2>;
8 t3 @! x3 x- b7 X/ r5 h end;: a. P0 J4 U+ P
(2) while <condition> loop
, B) x Q G1 c8 i, [1 f <statement sequence1>;+ a& e( k9 P& G+ E
end;3 t. {; X. I g; J. w! f
(3) repeat
$ J8 Z) v* Y& k+ _2 B [ <statement sequence1>;9 ?& l# [: x! H: d* k5 O
until <condition>;
7 ^- X! c3 t' {( u (4) for <condition> to <condition> loop8 L: p# V# |5 l$ G
<statement sequence1>;) i. Z) b' D/ A% _( Y6 X; c5 c( k/ ~4 `
next;) d3 ]# @% q. `% M* Y. z D+ |- L
3中断语句
4 l/ T4 d1 X+ c0 {# o waituntil <condition> prio <integer expression>;
4 m3 J- b: Q5 Z, ?7 S" O: w* t7 b
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以上为常用的函数！
* H: W& I. ~' ] |; G$ q, F2 T还有很多，如有需要我把资料发到你邮箱里 0 T# I& ?% V7 h1 w* V ]8 ?5 Y
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