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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
# G7 i5 N& ]. _+ j- }4 M W2 p if <condition> then
) f" A, |. A: I" T$ q/ R <statement sequence1>;& Q8 R9 K& }, _ D/ z
elseif <condition> then
/ S; M/ ~' v7 l" I- s <statement sequence2>;" r' c. @3 ~' q; Y+ f
else
9 ^3 l8 F b# l! }. a3 H <statement sequence3>;
& k% A7 R& B& `9 ~4 V1 n end;
" [+ R* P* u% W9 R$ A! t! s如果分支比较多,用:
& h9 \* {# ]6 `6 Q6 a# w inspect <expression>
+ ^0 q; i( C0 h( y% R p, Z when <constant_list> then
6 B9 D0 Y: ?2 y" p# { <statement sequence1>;
- c- p9 \8 ]( ~" ] when <constant_list> then4 i) Q. O- M. [
<statement sequence2>;
" y6 W0 Q% i" S p0 x: X ...
5 ?! D. t' p) a else
8 r6 o* C, R' V <statement sequence3>;
: Y1 A& U8 |2 Y* Iend;7 J. z R& } K! D8 W
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2循环语句
/ l5 S( {3 l* o/ P& s7 R: [ (1) from <statement sequence1>2 Z% T3 Z e$ @! h( l- G$ ~/ m
until <condition> loop: F2 g* V) T& e5 s$ `
<statement sequence2>;
+ {! |3 J1 X7 ~* j$ E% K end;
: d9 \/ N* K9 ]' L8 I (2) while <condition> loop( ^; q0 [2 R5 K+ F
<statement sequence1>;4 |( T( c% W( Q+ K% _% W" L8 y
end;8 I6 D9 _% ^* P M5 y/ f
(3) repeat
; _0 q: P9 i3 V; N7 h <statement sequence1>;
5 K5 T# ^2 t% J3 j' B# ?0 [ until <condition>;
8 X6 l/ g2 {+ N5 Q! F (4) for <condition> to <condition> loop/ _9 D; r1 a: |* S$ v
<statement sequence1>;
% a. W; B; T% x1 ^. e next;8 d9 z* j, A0 }/ a
3中断语句4 R% r$ _, {+ u k, S) _ a
waituntil <condition> prio <integer expression>;5 m- Z9 }& s$ o
& J; \3 h5 `, L" I# ?; i" h2 H% k" s7 [9 a+ r* B B! {
以上为常用的函数!
1 O6 ]: I# a0 o" U5 h- W5 Y3 T8 W, [8 W还有很多,如有需要我把资料发到你邮箱里
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