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发表于 2012-11-13 08:48:12
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1判断语句( I: l) N+ s6 j% Z+ }
if <condition> then
3 C9 }: V. i$ h4 ]2 z; V+ v <statement sequence1>;
: e1 V' S( z) ]+ l- j& g8 [8 Y2 _ elseif <condition> then/ y: r F* e' d. W z
<statement sequence2>;
7 w* l* u2 B( Z5 L5 Z else : s; y$ w) @7 z8 q$ t) K4 k. y( ]
<statement sequence3>;
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如果分支比较多，用：
Q: D5 G9 T) [8 ^9 m inspect <expression>$ b" B* U& V7 o4 R
when <constant_list> then7 u& p; ]8 A8 Q+ y$ K) C- ^
<statement sequence1>;
5 p* c9 V& w6 N9 \& x when <constant_list> then
' N4 e, n' C# v3 N0 N5 |* c <statement sequence2>;
( Y) B# I, Z: A! ^ ...
' K$ e2 C5 [ P" a" s else. J, b9 U6 I y( k( M6 t
<statement sequence3>;) C* r: u$ e& }/ ]3 b4 X
end;( `0 I3 v+ ?8 a8 L
* W k" f4 h+ h! V. Z( q# U% d N2循环语句
/ T& M' h/ t% ^& T l) h/ p$ a2 K- \ (1) from <statement sequence1>
- H4 x! C# y( d9 ~6 E until <condition> loop3 J8 A! K. p' I) ^. W
<statement sequence2>;
$ a) l5 X2 m: u4 ?0 e# e end;
6 d& Q# \5 `4 l (2) while <condition> loop! @* [) c9 v- V) ]4 A) A/ j
<statement sequence1>;" K5 l8 [5 p' m* `- J6 C: z1 z
end;- s& H1 F( m: I
(3) repeat
# g; Y- `& t9 y `" P4 m <statement sequence1>;* ?; G4 Y- h/ Y2 J8 f
until <condition>;4 c; l6 ^5 B% R5 ]6 i8 h
(4) for <condition> to <condition> loop
1 D/ m! _7 I* r9 A" M" y <statement sequence1>;
5 w6 H# g8 F1 O. B' D next;
% y, d, h+ ^9 M8 ]4 ?0 k: X/ w3中断语句
2 n" V/ A2 a8 Z waituntil <condition> prio <integer expression>;' r4 e+ M# N# \ U- {9 J8 N; T
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0 A2 ^$ ~; h5 {1 V$ d. Q& e以上为常用的函数！( x+ T) \8 g8 P' J' S. N* C
还有很多，如有需要我把资料发到你邮箱里
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