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发表于 2012-11-13 08:48:12
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显示全部楼层
1判断语句- n0 s2 R# g8 [
if <condition> then3 D. G' V' S) `# z- ?
<statement sequence1>;' [( c0 z5 N, x5 ?0 A5 \) T
elseif <condition> then
1 k- G+ S( u) E0 f" t0 e0 l) j <statement sequence2>;) w: s# Z9 c5 M( t% E# `( O
else
& M/ o* z6 ~ t& D0 U9 L" e3 M$ {: h <statement sequence3>;
/ u" G, O0 D" d' h) K end;
+ g' E! ]5 T% Z/ Q如果分支比较多，用：
% O8 B/ E$ s$ }% s* \8 l: M0 r4 m inspect <expression>
8 g+ }2 r6 C" {: V6 H( T6 q when <constant_list> then
% U9 v. R% z) I" W# N& A. @+ N) F1 b: J <statement sequence1>;6 b; p/ ^6 \) y! d- a" a5 X b$ z/ i1 R
when <constant_list> then
; D+ j6 W8 j Z+ r" `3 f <statement sequence2>;
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else! o+ [5 a* ]$ N: ?- i8 }
<statement sequence3>;
) H2 c; I# [& s: Nend;
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2循环语句
) Z5 j9 s( W0 K) s1 F (1) from <statement sequence1>
+ l) U# `) o9 j4 o2 z. S3 i/ V until <condition> loop: o& Q8 b$ C6 @* P3 t+ P
<statement sequence2>;
$ \: y7 I9 z) F* |' m. b end;
3 b3 a% u$ ^# p/ a (2) while <condition> loop
& q- i* @- g o1 K <statement sequence1>;6 p9 z' ]' a( L) D9 G" S8 v
end;& k5 q# @. d2 p O! R5 f, m) E- T
(3) repeat
$ q: E2 Q6 q+ t7 e; ]1 e <statement sequence1>;
* P7 d) V/ s- U- ~ until <condition>;: _) a P) N% n! b: {9 T" o
(4) for <condition> to <condition> loop
. s y& s% G$ \- I. t' {* X <statement sequence1>;' Q' D) n/ M$ U4 X
next;8 T5 l& ^7 _- l; n. t) \
3中断语句
6 @2 }# E; i. m0 l/ q% ~ waituntil <condition> prio <integer expression>;
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以上为常用的函数！; j# J+ p- @, g; q0 z, Z. O7 K8 e/ ]. p: P
还有很多，如有需要我把资料发到你邮箱里
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