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发表于 2012-11-13 08:48:12
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1判断语句- [: y( c' I& Z1 G
if <condition> then% G" k; w+ [4 m
<statement sequence1>;9 S& t5 H) }( @+ }
elseif <condition> then
) n. x, a6 w5 j- a <statement sequence2>;
9 B& f- E2 J5 c# [+ C @2 b5 ` else
/ U' } o! x7 s* g6 s; t# M; v# l <statement sequence3>;
9 b3 U# k- p# r" P end;
) V+ }! A7 w+ t# `6 z如果分支比较多，用：, w& P* x8 \/ C, N
inspect <expression>. {, A% o0 G- @" m
when <constant_list> then
- v& T3 S7 t" P. v <statement sequence1>;! \6 E8 a# |' f- s
when <constant_list> then8 t1 D1 z. F* I2 o" I7 f: ?
<statement sequence2>;: t! |: u2 t6 { t
...
% E* g, y: a v# R% ^- M else
I& _. U( ~4 l, Z% s* F' x5 U' @ <statement sequence3>;
0 e: U$ G2 ]7 b8 H) T, x* ?end;* k, s: b1 |3 ]0 {0 D2 `9 _
# n2 \0 T. m/ v# ~* k2循环语句
4 o6 _% H, i$ v* u (1) from <statement sequence1>. r7 u* A/ H) }. }. J
until <condition> loop
& a# |( F- S$ @2 j" G <statement sequence2>;+ Y& G6 U) n! r W
end;# [7 x. `! `4 p
(2) while <condition> loop
" ~* k& `+ ]6 ?8 Y; y" {2 O <statement sequence1>;6 M! @! W. A! ~$ {$ }& f
end;
8 y' o' a; M/ c: [* u (3) repeat
8 j" S& w4 [) T' b: O2 N <statement sequence1>;
5 J3 e# w0 Q- U/ t) q2 R until <condition>;
: G0 x0 r% V2 ?7 r" t) q (4) for <condition> to <condition> loop- @5 E% l& v) Y! p; n
<statement sequence1>;
0 `: x- y7 ~. J' A# l next;5 T+ u* L' ^/ [9 d* o. g0 O
3中断语句
5 d/ v5 }2 E3 ^6 d6 O7 }! I waituntil <condition> prio <integer expression>;
4 B9 _+ T. L4 q" ?9 c( i
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以上为常用的函数！
. w! `6 z2 O9 U+ U% J8 j2 c还有很多，如有需要我把资料发到你邮箱里 U, L7 T) p: t/ ~3 T
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