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发表于 2012-11-13 08:48:12
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1判断语句
/ v0 R( s0 [8 ]2 @4 A if <condition> then( ~0 q$ n* q1 X' {0 U
<statement sequence1>;
& l4 O9 X0 L7 o elseif <condition> then
! X' p5 j1 p7 V) | <statement sequence2>;
+ @# h& e2 {; C else
. j* ~* A8 _) R5 A+ r- R$ e <statement sequence3>;
1 M' {" N: f- ~+ N5 f8 b end;2 {: i- X) S& `& L
如果分支比较多，用：% B8 D2 e! f% z4 Y- d9 k
inspect <expression>4 H% ]3 c8 a5 P( o: P
when <constant_list> then
5 M/ X: x/ L. C S% x9 ~3 n1 P <statement sequence1>;
1 |" k7 v* M4 w& g, Z1 z when <constant_list> then
7 U8 U" s; x0 T0 t <statement sequence2>;+ k7 V# x6 ]0 g- v( y# A
...
/ l# ]1 }) y& d" [. s. m# ^ else* d. o& e! R! P' s- _
<statement sequence3>;
5 o4 v7 h& U$ ~, Uend;5 L) ~" A) T- }" S( Z" k' G6 e
; a" c4 z8 `8 _) O2循环语句
' h$ l d9 q; V) \' N! A1 t" ? (1) from <statement sequence1>
5 K# T* h3 ?/ j1 Z6 _ until <condition> loop
4 ^9 T, E* f6 E <statement sequence2>;
3 K9 ^4 X( d4 N- t { end;
& K5 i5 i: x7 [ m (2) while <condition> loop1 u* U: ?) U7 ?! i" }# b6 u
<statement sequence1>;
2 u' ^& b# l% X3 g, `- W# O7 `2 i* |6 S& t end; }* O8 f! d, r# `+ T
(3) repeat
- d7 Q. o* T; E, u/ T <statement sequence1>;* `. E; L$ i) X6 D
until <condition>;& i8 V, ]# W( _" g' ?9 q9 X5 v
(4) for <condition> to <condition> loop4 m1 Z2 w4 g3 z; H8 o( y
<statement sequence1>;% B6 g( n! I' Q. F
next;3 l. m8 S( D# X* T( {/ T, S2 \0 ~
3中断语句+ D$ C: O6 W0 ?- d3 ~& q+ N' E: ^
waituntil <condition> prio <integer expression>;6 S! [( y" }6 I3 {# D
?7 Q( n/ v) b0 v! e4 n
9 g& b+ z, p- _; t3 M以上为常用的函数！1 l0 i: s1 a# E# }7 J
还有很多，如有需要我把资料发到你邮箱里 2 |! K7 _% d# j4 v7 _
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