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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
2 J8 [! [. n/ N y4 P1 H if <condition> then
9 a, L4 q1 P4 T( {) u <statement sequence1>;
( _: }" i* |: B- \( E elseif <condition> then" t" i, G& a& M$ `, ^# h8 x
<statement sequence2>;
! j- @, V; o$ M$ ` else
) e# D$ i7 g+ `* H <statement sequence3>;7 V0 ]- I% ?+ R2 N
end;$ ]; }" k- [; f4 m; Z4 n, h# A( k
如果分支比较多,用:- G$ `4 t* r W/ `- ~
inspect <expression> b8 A6 d0 m' X" N
when <constant_list> then9 i* h! E5 L3 r0 [' Z
<statement sequence1>;
/ Z3 a0 U7 x5 ^% O9 Q& C x when <constant_list> then
" Z$ r f4 Z$ n4 }. k <statement sequence2>;( ]9 Q2 @2 L( d; E% E0 p' p
...( b! Y( E& V' z9 U
else
( w. {. z F9 B <statement sequence3>;
- y) b- n. [! F2 m1 u: z6 I$ xend;
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2循环语句( I G) z/ d: d
(1) from <statement sequence1>
% U; n0 R) D& N i until <condition> loop; Q! g8 M/ _. x
<statement sequence2>;
7 k* M e( l2 i4 F9 O% s/ A end;
/ B1 E8 ^- C% o8 B9 F( w, @ (2) while <condition> loop
x- p8 U0 E. e- ^' L/ p <statement sequence1>;
5 h; {! x) V3 i) x% T end;
( I$ {. p! L. F6 P' | (3) repeat
w9 [* W) p! Q; [ <statement sequence1>;
% y! x3 l4 {5 n2 S$ h9 b! ^; ? until <condition>;
$ E2 v" Y) z# K2 s: x (4) for <condition> to <condition> loop! o7 d! C) c' w$ M; h. ^
<statement sequence1>;5 ?0 L7 x/ j/ p1 G7 |1 c2 m
next;
) j+ Z3 Q5 Z: T' d% k/ ~3中断语句3 ~# r- v$ B6 Z: Z3 f
waituntil <condition> prio <integer expression>;+ _) ^7 {7 e( c3 {) ^8 c# @
0 c( ]' D, C+ t
; f3 N/ H, v0 H+ P" v以上为常用的函数!
% X. U( e7 u- }8 C! H还有很多,如有需要我把资料发到你邮箱里
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