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发表于 2012-11-13 08:48:12
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1判断语句
2 I- i# B7 [6 t; g- J if <condition> then
. r7 M6 S& ~# {( P5 j <statement sequence1>;
# [# S7 R+ e# }+ ? elseif <condition> then6 [- b; x, \4 M# p" o, S
<statement sequence2>;: N" E5 y+ V5 U Z4 f+ |
else
0 m i! \1 n1 A2 T1 A <statement sequence3>;
4 Q, w6 b: a3 o) n( W# K/ k end;
}+ S4 m7 J& u; h, H如果分支比较多,用:4 |, o: ^1 I7 \" D" V1 Z
inspect <expression>1 Z9 t7 b* u P
when <constant_list> then4 c6 L d& L6 a/ `* s+ U* t& f% l
<statement sequence1>;
; Q8 P* R% m [ when <constant_list> then; l' Q0 m* B+ E
<statement sequence2>;' @6 y# g6 L) s8 t! v
...
, e3 r) j3 z" c g* k else' q7 E- T+ v" t( q, X* B, v
<statement sequence3>;; Y/ o1 o9 S$ z4 S& c" Z0 a
end;; L' }. ]' A/ s; {6 o% V+ g
3 ?8 o/ l, q2 i. z! F/ E2循环语句5 {+ U/ t0 w" |, f; D( y
(1) from <statement sequence1>
: {* s) w0 ]( I4 @- q until <condition> loop* ^8 ~) r, R. ~" F( f# j
<statement sequence2>;# M9 ^5 A- u/ ?& B) s* {
end;3 {/ p/ t5 q/ O E$ o4 m2 P
(2) while <condition> loop: a8 l7 t) O. {( y0 d
<statement sequence1>;
& {: ^! B: @9 k% N! S end;+ w: t- G. M) e! l
(3) repeat " U! ]" s& n& v; U! E
<statement sequence1>;
* ^ H4 ~, x* _( g7 ]9 C* w until <condition>;
1 `/ K9 |* o) G4 A# l (4) for <condition> to <condition> loop D. [, _0 I9 N0 }
<statement sequence1>;
8 b% e* M( x0 D$ @$ p" Z; H4 e next;
$ c) t0 Z; K1 C' }8 n3 e+ \3中断语句
2 ?/ W( e1 b- R7 ~; z waituntil <condition> prio <integer expression>;
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! z4 Y1 S- S; B+ x以上为常用的函数!) _4 y7 j K2 Q8 C( j& @9 n/ b P
还有很多,如有需要我把资料发到你邮箱里 / T" q! h0 ?; Y* a: f$ r
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