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发表于 2012-11-13 08:48:12
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1判断语句
; V/ r4 Q# {" L if <condition> then& d/ E. F/ N7 Y' b( j) z
<statement sequence1>;
. Y2 H) r( @* h6 y! J: Z elseif <condition> then
, O/ R+ p" Y: } <statement sequence2>;0 i k6 Y3 p; {! |
else / d9 k6 _ \- g, m
<statement sequence3>;0 e6 J$ q' j+ L9 N
end;
4 ]3 ~2 b5 o% V% M( f如果分支比较多，用：
9 {+ e9 M9 r% k" h R4 J inspect <expression>
2 r/ ^- t6 M3 h, U% {9 p0 Q when <constant_list> then9 l) d6 i# D! U+ w7 q
<statement sequence1>;/ }9 [3 l/ z, g. U. B2 ^. }
when <constant_list> then& L; K1 ~$ E6 r' K' _4 k
<statement sequence2>;% G [4 b+ x: u' N" M
...
2 f& F% }! [) I6 N else
5 B/ R* z' V: F/ X; x$ } <statement sequence3>;9 i# }+ _$ b. D. c& j0 f
end; r) b: i/ H) a* x: `
7 R: M" e" {4 T2 E2循环语句2 V/ J# p4 A" _" l( M" [
(1) from <statement sequence1> F% m. q$ D/ h/ l2 k9 j) V
until <condition> loop! L2 f) @+ n5 Z) k W, h
<statement sequence2>;
w5 f6 u/ l4 F8 @, ?1 N( k6 }5 ] end;
# u9 E! V( M" q! l g. @ (2) while <condition> loop! @5 K4 Q9 a, H) q- _4 E, ~. e
<statement sequence1>;% X" v9 S, a6 L1 A
end;! j5 b' p+ V7 [1 g0 Q. k/ n) w
(3) repeat 0 q |: g7 M3 Z4 ?4 G
<statement sequence1>;
1 g) P0 _0 ~/ M C+ Y4 [ until <condition>;
& I# l' a: d2 r; n2 z/ X$ t6 k" d( q (4) for <condition> to <condition> loop
; v8 @% T' D. l1 G' H0 _& @ <statement sequence1>;4 B( } u, {4 Q, z, O
next;
8 c6 J( b' i* P$ e3中断语句' E0 @6 c p# b1 `# B e5 v
waituntil <condition> prio <integer expression>;5 d, _5 U! H1 |- E* g
- Q0 [: U/ t" |* G5 m1 ?5 l
; x, K" D* H A' a f2 d0 {以上为常用的函数！
0 `4 F. b$ b0 D3 y& L! I/ Q7 s还有很多，如有需要我把资料发到你邮箱里 & F8 I4 \/ Q. n' S& @
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