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发表于 2012-11-13 08:48:12
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1判断语句
1 I5 d8 r b- Q$ Y' l if <condition> then
6 W: [$ s3 S+ \ <statement sequence1>;
& n, k. T4 V2 E6 P elseif <condition> then
+ r0 |. J% ?2 ~; |) x1 R <statement sequence2>;
1 h- [. q0 W$ p, m8 m: E2 } else & l/ T- g. y4 e
<statement sequence3>;
4 B: w% L; [/ s- X" G" i2 p: o+ [ end;
( L* Z7 b2 E$ T3 l5 K如果分支比较多，用：
4 d/ B* J5 i' j+ U inspect <expression>
" E, s: o8 n5 g, ?: b' N7 ` I5 [ when <constant_list> then6 U) [7 ?6 {+ J% q% p* j, a
<statement sequence1>;
1 {( t i( J, d) r- O8 v- M: O7 | when <constant_list> then' |( [( p A4 @ G6 \* h
<statement sequence2>;
# |4 W- U L% P& J ...
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<statement sequence3>;8 w% H4 g% ?8 h z- X
end;9 }" D. p" U' f# d/ k& p; R4 j
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2循环语句0 `2 [+ o$ p- l% Z$ A; G* `
(1) from <statement sequence1>3 Q7 B: [5 _7 j' H- Q
until <condition> loop
$ [8 ]/ M0 |- q+ t: j! ^ <statement sequence2>;
$ B, J5 ~0 S( w/ y! Q6 [ end;
- V+ ` b! u9 C- S6 I (2) while <condition> loop
9 k& I c% n8 d0 W5 j ?$ w <statement sequence1>;/ @6 u5 u% N* R& e7 ~+ [
end;
+ i+ A" Y. r4 i! f (3) repeat , x3 B1 g7 }7 y
<statement sequence1>;
5 @8 E" `: O9 x7 `, M until <condition>;4 O8 [/ D3 q5 c3 L
(4) for <condition> to <condition> loop
* q! c2 D6 [2 c <statement sequence1>;
5 ?: d! n6 A6 ` D1 r next;
3 U7 a5 d" C6 l' h8 s- t3中断语句$ M# T6 W# J% a1 B2 @
waituntil <condition> prio <integer expression>;
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以上为常用的函数！
& d9 w# G9 `/ j! ?9 }还有很多，如有需要我把资料发到你邮箱里 5 K1 Z: O0 v8 d/ ]% u+ e# X
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