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发表于 2012-11-13 08:48:12
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1判断语句
( r: z/ d1 |1 h/ {; x if <condition> then
- B& @5 d4 X9 w, [( | <statement sequence1>;
# f: k5 L/ Q/ P# J elseif <condition> then
0 f; p& N/ F. K <statement sequence2>;! O$ W) d; K, P* b
else
# W' L8 ~- E9 I" t; ^' c. [ <statement sequence3>;
. B2 W5 M! h2 c. T; Z) r' s6 e6 E end;# e1 F' k& [2 p5 _( X* S
如果分支比较多，用：) |7 `, X) J2 G8 o- {3 \
inspect <expression>
& X; I$ Q q/ M- S" x; f1 T( x6 M when <constant_list> then
5 t$ @( W$ c1 | <statement sequence1>;
2 m+ a _0 E0 _4 p) [; a when <constant_list> then
6 H4 K8 [ l: `# B5 K9 i6 g <statement sequence2>; g; z5 H& C2 B. F$ P
...: H( S* m# w* }% M/ q5 }
else
/ K7 c8 E S3 J7 d6 ]4 h <statement sequence3>;2 p% c( A6 r6 J% u2 F8 P) r) y+ N
end;) H5 q* G" o. ^: E4 J9 N& X: `; U6 K
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2循环语句- N. C. p! E; c9 f! S* A1 s: y; \% j
(1) from <statement sequence1>* p) l9 o5 i% E( z5 e
until <condition> loop
4 N' l9 W+ H j# K" F) @ <statement sequence2>;
7 q+ L# c; s) t- q, o8 |8 q! Y end;
3 @& B9 N% E B8 K' C# k (2) while <condition> loop- P( y* E3 B* W1 S8 ?, p
<statement sequence1>;" d3 J" Q( c1 o1 K) G+ A! [- \
end;- z; p2 \- H, }& d
(3) repeat e$ G2 K7 q: [4 P; y# U" v* _
<statement sequence1>; V Q0 `/ \3 S% L( g' c
until <condition>;
7 a% j/ K, s& ~5 ~7 M- { (4) for <condition> to <condition> loop
( u1 p8 M9 e# L9 ?- }8 p# X; g <statement sequence1>;8 x% M: u0 n* ^; H3 H9 }
next;
& x0 A. R+ _) I% K1 u g- H! l |3中断语句
5 g: p K7 N. A( T waituntil <condition> prio <integer expression>;! A& B& `* X! ~/ d: n
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以上为常用的函数！& i, N! @3 t2 K. K
还有很多，如有需要我把资料发到你邮箱里 9 ^! A* _- g8 b$ ?. P
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