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发表于 2012-11-13 08:48:12
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1判断语句* q' P5 N2 C e0 [4 v
if <condition> then; P# y) _- q- `4 u
<statement sequence1>;
3 x) n8 }4 @. f, u( A elseif <condition> then
& g' T. l9 x1 R7 A! j <statement sequence2>;
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<statement sequence3>;; M3 k' C9 d9 g" Y6 z
end;2 i9 N+ o8 h$ G9 M8 k9 N
如果分支比较多，用：& g0 M1 ?9 @- P) v/ S
inspect <expression>4 y( [* d! i; h3 z
when <constant_list> then
9 U+ ^' x# }- |* _( d u6 p <statement sequence1>;3 C M5 G+ K& K! V# U" g' K
when <constant_list> then6 d# }$ B' p' d
<statement sequence2>;5 k8 i) ]- s/ l, q) q1 K0 L$ n) ~
...
6 ~2 x% Q! S, d! r# g else: t$ w' b; K! p$ g7 K- u1 T2 U
<statement sequence3>;
' S, c/ c0 S# [; ]" j7 R c) qend;
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. P3 Y7 Z' o' Z9 R' g4 ?. k ^2循环语句% ~; n& l, g, I6 q: O
(1) from <statement sequence1>3 V7 s; D/ i) p
until <condition> loop1 }3 _% B4 v; H
<statement sequence2>;
- W+ F C" S/ y5 y end;
0 y6 O9 M' x! m" r9 R9 g5 \) L8 s (2) while <condition> loop, p7 `; Y& [; J: q) o3 y& S3 V& Z5 B
<statement sequence1>;( t/ p- N, v/ V6 C) C# J3 e
end;. C2 ? v4 } }- B" @6 R, `" @
(3) repeat
* p3 _, ]( d, c- n$ ]. \8 G: k <statement sequence1>;0 |* a9 z$ `! F2 n; W* i9 R
until <condition>;
; x& n9 L: g$ Q& C (4) for <condition> to <condition> loop- o) V1 C& b2 K: b. Y$ E: R
<statement sequence1>;3 ?* q! A* f) i+ w
next;" l7 w! L! {" l' |7 J! {+ m! s
3中断语句
9 Z1 X7 z6 U- `: D, D0 k8 O7 A waituntil <condition> prio <integer expression>;
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以上为常用的函数！! Z; K9 `. |% K
还有很多，如有需要我把资料发到你邮箱里 ^5 N/ V# r4 d4 R Y1 G
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