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发表于 2012-11-13 08:48:12
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1判断语句
u8 w# ^# T9 M: G3 S. i if <condition> then3 N& l% |; d8 m z" M' s- g. c) [
<statement sequence1>;
; h' Q, M1 o! R3 r1 M) V" {5 m v- {! } elseif <condition> then
- U- ~- t$ r* W+ Y <statement sequence2>;
5 C6 G4 D; B! ?: K! r O else 8 c. i0 J/ y$ o2 l% W5 g# c
<statement sequence3>;
- v( r y. g* V6 A7 [( J3 F end;
* u& I- l) c! }# M4 @- b# a如果分支比较多，用：" A+ z; V6 j3 z8 v& u' ], E
inspect <expression>$ @* z- D- c9 `5 P! ^
when <constant_list> then. S8 ?( D" R2 Z; z. i/ X% |
<statement sequence1>;. E' @7 e, P4 X3 ~
when <constant_list> then
w6 z& Q. D* O8 E7 O <statement sequence2>; x. L, j/ @/ ^0 Q' c, ^
...
" ?3 \# ^& |/ S' k* P9 O0 P, | else
# O3 V1 M) Q# S+ u8 k <statement sequence3>;, @; t4 n; _2 |2 p8 {; p
end;
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2循环语句
# n- [' }4 t6 N4 L0 X6 _& H (1) from <statement sequence1>* s. i: p) E$ W3 x
until <condition> loop! [0 R% @- y" V' g
<statement sequence2>;' C- a6 y, R* Z W$ u9 _
end;
, r4 g: v+ [" d& b5 q/ X, t0 c. I% f (2) while <condition> loop
, ^5 Y4 _3 ?! Z' F! {8 a <statement sequence1>;; E6 f# J# i% p: a1 v0 g$ t" s% O0 f
end;
6 H: B5 @ B. \2 l% \ (3) repeat / x% ~0 q) m |! {( @
<statement sequence1>;( Z, \) F5 I" }0 j: b& M& U/ _, i
until <condition>;
& ]: @, Z7 h: G/ ]9 x2 Z- x3 r* ]# A (4) for <condition> to <condition> loop. n: Q, A G& H4 `7 o& T
<statement sequence1>;$ `5 }9 ~/ \" Q, g, ]1 O
next;
6 x4 g- N5 w; f) e F. g8 _; L3中断语句
) {' r8 t1 C3 F4 p. Y% v waituntil <condition> prio <integer expression>;
$ ^; T. G2 N {9 z/ G9 F0 p( v5 q/ C0 N: o% g9 C- Z0 ?
* `# }3 T( V5 Z) [以上为常用的函数！$ Z: T$ U6 ~% z0 W, l
还有很多，如有需要我把资料发到你邮箱里 7 W4 X0 ?# Z+ i7 T q/ f2 c
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