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发表于 2012-11-13 08:48:12
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1判断语句( l7 J+ [& o3 D8 [
if <condition> then( `# q# v+ ]8 B% `
<statement sequence1>;
5 u5 U3 M) `8 x3 {. x elseif <condition> then
' \/ m' W* D. ~0 t' I6 G2 ] <statement sequence2>;
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<statement sequence3>;
5 w% W3 E q( G; M end;* f9 f+ _ b1 S: t2 L! r1 r5 m
如果分支比较多，用：
, B" n+ ~' x. G, R inspect <expression>
" o4 X/ \% y! [# R5 L2 i when <constant_list> then0 {$ _1 A x0 A W: f
<statement sequence1>;
; |: @5 O4 ?6 v Q& H2 z a- [ when <constant_list> then/ n' d: n/ T( i" J# T5 z
<statement sequence2>;4 J" ]3 O7 k% N8 C# N8 F, a
...
8 g. n, T' W3 S! i+ |) Q else
4 ]* b) Z( l" y1 P <statement sequence3>;0 ?3 r3 A" I# K- a3 T: \. M, o
end;
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2循环语句
( U# y! r3 V$ f0 F9 k* Z (1) from <statement sequence1>% X h; n% n, f0 x. l/ f- j! R
until <condition> loop. f7 D2 ]8 s+ c6 I; T" z# L& d/ ~
<statement sequence2>;- e: s, y1 m1 }3 i% k$ R; @& ^
end;
7 u8 i8 P! W/ A (2) while <condition> loop
* F/ T, Z$ L8 z: q <statement sequence1>;# B4 R) I( ~: f! z/ W
end;" G9 [. t% e2 ~! C
(3) repeat
) \ q% q. c! [4 H! t& J <statement sequence1>;
1 I3 P' W4 _3 E6 i% u1 N until <condition>;
- a- g! W" ]& V) J8 C (4) for <condition> to <condition> loop2 G( t! K1 a( t9 x
<statement sequence1>;
) g) }6 I: j ]( m8 ~+ S2 d" t next;
( l2 M2 I0 f; D# t5 [3中断语句
0 K5 u0 |: |5 ]' p' r- X6 l waituntil <condition> prio <integer expression>;+ T8 b# t1 f: y" W( a: ^1 c
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: s4 ^/ B) T# b; f4 x5 @以上为常用的函数！9 ~2 w$ ?* S/ C6 l5 x2 F
还有很多，如有需要我把资料发到你邮箱里 ! ?( o+ N* u% }' y2 Z- A8 p7 J
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