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发表于 2012-11-13 08:48:12
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1判断语句
$ u+ K) G: D( ] l if <condition> then
5 Y6 j( U' b/ p9 W# i <statement sequence1>;0 _8 P& B! b" u3 z7 g6 L
elseif <condition> then
: N& I& z- Y4 j- Y <statement sequence2>;
7 I& B: b3 y/ [8 j7 L else
$ g1 C; j9 V/ p/ ?) N0 u8 `4 w3 }. T6 q <statement sequence3>;
$ u4 M& @' p" x+ a) O end;/ W& a. C) ^/ w" ~4 ?8 f: K+ C
如果分支比较多，用：
# K* p8 m, M3 [, A6 l" r& ^ inspect <expression>- w/ G; \: p! ^* B- g
when <constant_list> then
$ _& O8 m& n# |4 n- k% Q1 }8 l <statement sequence1>;1 w/ O& c& C6 [ s( x* n" e
when <constant_list> then6 B3 n; P0 W& {" h- {5 f4 O
<statement sequence2>;
' P% m4 N/ y8 a/ E( b ...
4 [) u: u' B1 z$ g7 L2 ], Z. } else, ~& w4 Z' d3 P4 U. {
<statement sequence3>;
5 p4 a& ^) ?- H# ?4 l* \end;6 D1 ~( X' Z- N8 a
) p( q3 S- y0 D7 D- I1 S2循环语句
) U% ~/ L# C" z& d- d (1) from <statement sequence1>
# Z! D" s+ j( a4 ? until <condition> loop! V: N1 M! }$ Y
<statement sequence2>;" M9 U& g1 L# C& f& b6 ^
end;
' g" a( W# d! j7 T% v3 m( m9 ` (2) while <condition> loop
1 @2 y% Z# H! W* Y1 W& h, }: } <statement sequence1>;' Q- I* E0 l1 z6 b
end;6 l( g# f" N8 P5 a
(3) repeat
( r3 k8 C. i [# g- c <statement sequence1>;+ Z8 {$ L0 f- [5 j
until <condition>;
* o# G9 k. O5 f (4) for <condition> to <condition> loop4 a4 D% V8 Z% \# A0 T. |! f) U
<statement sequence1>;
$ Y0 v; v' n- B, @' E( A next;6 ?, K Q: z* @& ~7 X( x& v7 o. R C
3中断语句
# u5 Z' d, ^- R waituntil <condition> prio <integer expression>;- n5 D- M# o" n& J# T
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以上为常用的函数！9 e8 ], F" e8 J0 V
还有很多，如有需要我把资料发到你邮箱里 * \7 a' p, S3 U0 K0 A6 ?/ q4 c
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