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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
4 o( Y N* d- D) ^4 c, G if <condition> then
, o; ^: t7 C7 q) m) g <statement sequence1>;
* b& N5 m" D2 E. I1 h. U elseif <condition> then
/ E5 C9 |9 q9 E- ?- i <statement sequence2>;$ `4 d5 N3 _) _* [
else
2 h; I+ Z: S$ T: K) i1 s <statement sequence3>;
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如果分支比较多，用：
7 x; _- X$ D/ O ? R# H' i inspect <expression>0 ?" [, O1 O5 a! N
when <constant_list> then5 Y. ]7 m& H" c* A ^5 V9 j
<statement sequence1>;
4 f* @$ H4 A# K5 W/ {% C when <constant_list> then
6 Z- L, D6 d& h: |- `; M <statement sequence2>;- D$ Y1 M. Y2 a
.... i ?- P( O, c+ O+ D
else
' D' f. n3 d- W5 F. J6 ]" q3 R! p <statement sequence3>;# |; O# H1 v3 J7 ?, W8 `8 X
end;
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2循环语句
& @/ B& h3 _' i; X7 S& T T" e8 G (1) from <statement sequence1>7 h/ U3 b/ k; B# \, ], P1 t5 V8 O
until <condition> loop( c- N. Z) \8 K1 T5 [/ B. E; b) h
<statement sequence2>;' ]; H a. _ J( Y$ a
end;3 V$ p; t( G3 g! w2 X
(2) while <condition> loop2 J8 G) s- K2 y3 D
<statement sequence1>;& D( t+ p6 n! S/ E
end;- n% w) S" E# ~! `' g
(3) repeat 0 X2 t* L" i# u# \
<statement sequence1>;
8 V6 L7 s) J* @. [4 h until <condition>;% s3 ~1 @3 G6 A. l6 v
(4) for <condition> to <condition> loop
) G+ i1 ?: s+ j1 H <statement sequence1>;1 _ K# v3 j5 Z) e q
next;+ ]: k% N' ^. N0 V$ @# t
3中断语句
$ V6 P6 Y: q s3 A4 u3 T waituntil <condition> prio <integer expression>;
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以上为常用的函数！6 i/ S/ k" ]' d) m
还有很多，如有需要我把资料发到你邮箱里
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