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发表于 2012-11-13 08:48:12
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1判断语句# G3 }( ]# {) C; c! r0 A
if <condition> then2 o6 \" f# p% V7 v: F3 l j) {2 R
<statement sequence1>;
6 B% q; Y4 g% Y6 u; ?2 x elseif <condition> then3 z7 d7 C5 a: Z$ c: J0 Z
<statement sequence2>;
. O+ Y; X% w+ x) D else @9 [9 R& T, a- X+ k8 w
<statement sequence3>;
, i3 U2 q4 G# Z end;
# \& I3 X" P# ]' L" r- V- E如果分支比较多,用:, F* |9 k9 l1 h, k' _/ i# J
inspect <expression>- A" k P, l }. w T! N1 N0 P
when <constant_list> then
: Q* ~% d8 s& T& y <statement sequence1>;
$ w7 S) `( g- h! @( d8 v7 U. H6 l when <constant_list> then, A7 _' W6 p3 l% E& Z! ~3 `
<statement sequence2>;
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else" }0 e* ^- _; k8 ]3 c" ~* W' I
<statement sequence3>;
0 \0 S3 E; Y9 W. ^end;3 U7 m; t& C( g3 n2 A7 d1 t
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2循环语句7 R+ K0 a9 x3 V+ ]' R7 u, i
(1) from <statement sequence1>0 p# }& Z; ~! R- D8 T
until <condition> loop
0 j4 z! d. Q3 I1 S/ Y <statement sequence2>;' p( Z/ z& o2 @- M
end;
% V; B/ H3 G. T+ b; h3 F1 ^7 E (2) while <condition> loop2 c# c5 ^) T5 [, y
<statement sequence1>;' z; d. e9 T. u2 a
end;
3 ~' z, C e& h0 ?4 G (3) repeat
2 Y) _: ^+ t! [/ ]+ v* W X <statement sequence1>;( Z( ]" E8 L" w6 G+ u% K
until <condition>;
0 r4 f3 X+ k* i (4) for <condition> to <condition> loop
4 c0 j: L {& s <statement sequence1>; A6 c; J% f, q7 s, m
next;
) K; T- @/ y* x8 n3中断语句
. I/ f8 p" P0 o5 X; A4 u8 { waituntil <condition> prio <integer expression>;4 W% I5 x5 N' h/ z. d* f
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以上为常用的函数!; t6 U4 P- O4 B/ b' a$ t( I
还有很多,如有需要我把资料发到你邮箱里 ; _2 S+ p( t* `5 F) q j/ g
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