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发表于 2012-11-13 08:48:12
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1判断语句8 j) A) M; f- _# F
if <condition> then
" V* A$ K: z- C, z7 a7 O <statement sequence1>;
: F5 R7 l& r/ G elseif <condition> then2 {( C8 Q* E- u, ~: p
<statement sequence2>;
. X- o1 ~" y/ {" O n' q else
( }9 Z& ~: T2 b% ^2 Z+ D/ r <statement sequence3>;
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如果分支比较多，用：8 A" M( ]# ~6 p% Z& x! F
inspect <expression>
5 p4 h& G6 R8 X8 k% i6 ~ { when <constant_list> then+ ?0 ]3 c% k$ p$ f$ M. ` v/ B
<statement sequence1>;
1 ?7 H8 z! i4 f0 Y( i* w* t/ [ when <constant_list> then
1 g* _& R1 l5 T u3 b0 c/ x0 M <statement sequence2>;
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else
n& [/ b% _* |: g O4 L. x <statement sequence3>;* `! {/ N& l5 h0 M
end;
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& s; k( \6 u7 Y, o2循环语句/ U5 ^, H( [/ T5 f! b* N
(1) from <statement sequence1>
N# c) g( n B until <condition> loop
1 M8 l# }: o E, [ u3 Q, D <statement sequence2>; k( X; H' V. |0 Y. B2 W. M
end;
; f, t( [. }$ t# C (2) while <condition> loop
9 L" k8 w9 R, ?. c, |" p <statement sequence1>;/ c& [; x3 ^% G$ U8 B0 u
end;
; p: X5 a% |9 B+ D7 t H (3) repeat
1 z3 ^) D. w- c) M' ]0 x <statement sequence1>;0 L. b. V' T: y/ L- n5 z
until <condition>;& N G. H( m2 G: @& ?" G
(4) for <condition> to <condition> loop& s3 i5 U D9 k- w
<statement sequence1>;" K8 N7 V& g1 Z+ j
next;0 P2 Q6 R2 n6 y& U$ q$ r
3中断语句
* {4 g+ B6 B5 g4 b7 U9 d waituntil <condition> prio <integer expression>;
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. H% x0 }3 n1 i" V以上为常用的函数！! {( ?- B" L) X5 i
还有很多，如有需要我把资料发到你邮箱里
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