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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
6 Z V+ @$ p# M1 O! a7 N: j, W if <condition> then
! }2 u4 @+ W" c+ p' S9 Q <statement sequence1>;
" F" d% ^- `& D) ?) T& o: k elseif <condition> then8 {! @" X& c0 Z( U6 B7 a5 z) T
<statement sequence2>;
: q6 ]3 G( d# b8 b else
6 M" m/ x8 x0 J( W7 c- p <statement sequence3>;' D$ c. ]( Y9 f& W G
end;
+ g* `; q8 M* _如果分支比较多，用：
, Y8 J# N' h# U. S inspect <expression>3 o! U2 X$ ~5 u9 w& {% Q/ ^
when <constant_list> then: |/ U3 v2 M$ r6 [/ n
<statement sequence1>;* B( X( _3 Y! V) [5 P
when <constant_list> then z+ A$ P& v2 @# n7 A' [2 M
<statement sequence2>;/ Z1 q: O) F/ h
...* ~) ]7 K5 j7 F1 x1 w$ b# {
else3 y- T( _9 E4 ~, S) y
<statement sequence3>;
5 @" x+ |& c5 U ^; | gend;
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4 S c$ }, M9 f: M5 L# t2循环语句
b- \, d* C/ E; J: F (1) from <statement sequence1>
! s; N; o# u9 H4 I until <condition> loop% V( ?* M1 t( o' I8 s
<statement sequence2>;' T/ c6 j `, A6 |0 c3 ?0 R
end;
* r+ ~# e! }, p6 d$ ^- v! z# R (2) while <condition> loop
$ S5 ?% {5 L6 C# f1 u1 C- W: \. h# z* @" T <statement sequence1>;
: Q$ D% l+ X3 A% y. P end;
5 ^# H4 x7 X! r" G6 v (3) repeat
" M& }9 k- F) h) g p8 D) [% K, P <statement sequence1>;
6 {4 @8 i" D( X* M) N. l' @ until <condition>;
2 S5 { N- F n, f ` (4) for <condition> to <condition> loop8 }: s! d) \. v( e& R4 ?2 u! ?
<statement sequence1>;, k. W" c! g# v( T+ L( A6 T4 B$ z
next;$ B# g6 M) U* {% U0 p! U0 W) C
3中断语句
/ K7 R. s+ h, q/ B% r waituntil <condition> prio <integer expression>;2 h3 N0 B2 {' M8 s
# ?2 g1 G, |! H; Z1 p% k/ |" H/ [, |; }- R, f' f) q) L
以上为常用的函数！
; r7 L8 t. o/ z: E" ~0 R0 ^: I+ _2 A还有很多，如有需要我把资料发到你邮箱里
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