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发表于 2012-11-13 08:48:12
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1判断语句; H q8 \( Z/ P, _- ?: Q
if <condition> then- H b# g0 ?% W' D1 d' ^, c
<statement sequence1>;
2 X8 S* o! p# M% w$ |( x5 l. Y elseif <condition> then- P5 D) ~ g6 `. a. B( ]1 q
<statement sequence2>;
- h1 O! D1 b0 o& t7 m2 r" p5 Q2 v else
+ q, ] D5 Q+ P5 U$ x <statement sequence3>;
5 S& w, y6 |/ }) ?# d end;
( F. v; D; U" i6 w* d如果分支比较多,用:* J9 j; f! s+ S: R& W
inspect <expression>( j6 S& a/ n7 e. H$ O$ R z) I% w0 B7 D
when <constant_list> then. n' B9 u$ p5 ]" x7 O, P
<statement sequence1>;
) k1 \8 R/ Q. \4 B! a when <constant_list> then
0 ]$ i. o% g4 |; @* b <statement sequence2>;3 u% G: r+ P0 D R
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else, ~7 Y4 i, i, l/ T* B; K3 c
<statement sequence3>;6 {9 {( v+ I$ q+ C5 ^
end;
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+ Y/ h( e5 b/ _! M2循环语句8 x) N) @# v( T! c9 [5 k
(1) from <statement sequence1>, ]+ b7 i1 h( V" @% g/ g9 `
until <condition> loop
. c I3 ^; z- \4 n6 \% a) [( v8 G/ h <statement sequence2>;
1 A6 n1 @* y7 w8 h b/ _7 Z! H end;: l+ i; k) ~: W3 m) ?! X( i
(2) while <condition> loop3 i" x; g$ `3 U7 U9 Q y9 ^
<statement sequence1>;
3 d3 ^% k8 z; \ ]3 j end;
& ]4 n! T; C O (3) repeat " m5 [9 y" u) I* }
<statement sequence1>;
3 l4 D2 u" J/ \5 R7 l- T until <condition>;) i) s& V8 H6 ~& M. L1 X! E& m
(4) for <condition> to <condition> loop& A+ h$ M: c" z# m) Q* c
<statement sequence1>;' {$ D& P' [ U! F6 W
next;
* O% m4 Q9 z* d3中断语句& p) H \* H. H5 N
waituntil <condition> prio <integer expression>;; z% J; \2 k* E
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以上为常用的函数!+ ?/ K" a3 C" Z# ^7 \
还有很多,如有需要我把资料发到你邮箱里 % r5 }1 v$ P% T P- A
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