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发表于 2012-11-13 08:48:12
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1判断语句3 l" u+ W5 \% |. y& W* f6 e+ H9 E. `+ d
if <condition> then0 d5 Z2 _! d% d# d
<statement sequence1>;
+ Y* V' L& ]. k$ S, D elseif <condition> then
7 y$ r8 i% N$ m& U <statement sequence2>;" H$ o; w$ l) o/ H9 }
else
k+ F, T' b# K5 c3 { <statement sequence3>;
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如果分支比较多，用：& i5 V m6 z$ U' U) I
inspect <expression>
% s+ k: n( w% T8 \7 o when <constant_list> then$ W8 F' `0 o% W) F# v1 M/ Y
<statement sequence1>;3 E# q1 W1 L9 V J8 t7 p8 ~
when <constant_list> then
6 I1 W* w& k8 Z* L; t* x! N4 [' p" R <statement sequence2>;8 _& T" E7 J6 h
...
5 ~$ {! n+ h1 q6 y; ^) H else
4 Y& \4 b# ^' n A- ?$ @/ P <statement sequence3>;4 w+ o$ {9 `: g
end;
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2循环语句
7 z& a- N5 u3 Z _) m* m$ w (1) from <statement sequence1>
% w! e" J. U1 ? until <condition> loop
$ e; d8 q; k' s; K/ o' R <statement sequence2>;
* l9 p; V# N N, ?( E% h! O end;: R( [; N) |/ Y8 j
(2) while <condition> loop
' W( B% c. v# L# [% W$ K <statement sequence1>;
# ?8 X$ K# W$ i2 G' i$ H end;
' ^; t5 W, a: B1 ~ (3) repeat
1 N" X" p( X( C, \5 P6 { <statement sequence1>;' V% ], J8 h/ `) }
until <condition>;+ E: Z! ]6 ~3 D4 g
(4) for <condition> to <condition> loop
6 T% ~0 E2 `. c+ I. _: U <statement sequence1>;
6 D9 c) X6 L* |( ]- B9 {5 z, }! p* L next;
& ?% P1 ]1 Y0 w) u# s2 N# j$ D3中断语句0 |! ~8 P; j+ ^; q i9 P7 R# `
waituntil <condition> prio <integer expression>;
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以上为常用的函数！
+ f1 _, ?8 ~+ [: c+ j! {# m还有很多，如有需要我把资料发到你邮箱里 , p* C0 i% V2 e. S$ N& T, E
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