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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
; l! s( G% N$ S; o/ H: D7 K* Q if <condition> then1 v% H$ W1 I, f
<statement sequence1>;
$ W0 S4 H8 J8 y; k: ^- e" i! e: Q elseif <condition> then
; a6 o* X5 c. X+ `- F <statement sequence2>;
- w( p5 A5 ?( k' I) I5 N" ~4 ` else
. i, G2 }5 l; y0 B) J) Y <statement sequence3>;5 g# r, v/ }; x* g" P4 [/ i$ `. r
end;
/ i( K) A; ?: R F% B V E/ I如果分支比较多，用：
% A$ U9 m# \4 r" @* [" V inspect <expression>; o" O3 [/ k# ~4 x
when <constant_list> then
0 I+ |$ V3 T6 p* e! d0 E: \ W <statement sequence1>;6 k# n3 |3 D, \- r
when <constant_list> then
* x% ]! s2 S7 d3 f. K <statement sequence2>;
& ]- v" c2 T; d2 y* N. A ...
9 w% R) E% [# X2 y+ r; U3 w else
) b# `& r* S+ ?! Y/ M% `% `- M <statement sequence3>;
6 f* A& Y' J6 b( o2 Gend;) |9 v% K q4 @, f" o' w# }; p
8 H' o8 u; L7 S, b2循环语句
\) ]3 {- \5 r7 [' y (1) from <statement sequence1>: F5 r3 ]2 d/ i" G
until <condition> loop
2 P6 `6 J* A) o6 Y9 i <statement sequence2>;
& F/ c; W! `( j2 ?9 O$ _1 [ end;! b5 y) @, ^" }7 E
(2) while <condition> loop+ v$ O& H' o2 F g- F( S/ f
<statement sequence1>;/ p- \; I3 w! `5 F4 n: h% e
end;7 d3 d- | P! P$ u* f
(3) repeat 7 g9 D5 J- I6 z! Y% b6 J" c7 @
<statement sequence1>;
% \: d; q; |( j7 `) _0 v/ V9 o6 K until <condition>;
; [4 k5 G8 I5 P1 d (4) for <condition> to <condition> loop
; n3 C1 `1 Y, i: L+ ?! r. B <statement sequence1>;
) |+ Y2 a. J) G5 R7 A9 }1 H1 F next;+ N* N7 V: n# X8 g. X
3中断语句
Z; z' @$ k* Z _7 S5 G waituntil <condition> prio <integer expression>;
* J1 |" N. H Z" d, u' r9 N, Z$ b% `/ b2 v5 s( h& f+ j
/ |* [( E9 M! {3 c& d以上为常用的函数！
+ w* F% ]" H# `) {- O: `还有很多，如有需要我把资料发到你邮箱里
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