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发表于 2012-11-13 08:48:12
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1判断语句
9 ?+ e3 I( }3 g% V: Z' ?4 {* q if <condition> then1 k3 B4 E$ j4 ]. F H' l
<statement sequence1>;* I- G9 z% U& |8 s: W; S K- d8 l
elseif <condition> then
2 l8 F! |: b; s- @4 T+ t <statement sequence2>;
* r. w6 E* D$ X$ l9 E$ p' Q else " W8 U( a" V+ C
<statement sequence3>;% ?2 ^4 {: [. m% \! s4 o' v0 v$ [
end;
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inspect <expression>9 N- N* z* R) f6 L8 ]4 [
when <constant_list> then
S8 i( q2 T; _, `. f* k* [% O <statement sequence1>;
I" B$ x" g) D& t( c when <constant_list> then
0 G; Y- c. J" Q8 M! ~, D <statement sequence2>;7 W* p! r4 H8 \ g, J6 f8 h9 V
...
) m! q2 R$ ]0 {: P5 t else
) p% Z2 w9 d& H6 [# K <statement sequence3>;
" i! K. F; h @: _end;% T" k [* P! d$ _9 `
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2循环语句' p* x2 {! l+ ?2 k
(1) from <statement sequence1>) T5 Z6 O: K! N+ n
until <condition> loop/ T. m" x: u" [" n: n
<statement sequence2>;
+ S& Q& g8 T$ Y/ H, u0 C- w- [- r+ L end;
. Q# v- k# b1 l! t3 ^5 | (2) while <condition> loop
' U1 Z% C9 k8 B% G" |+ E$ n <statement sequence1>;9 n4 U( K0 q, R: |# H6 F
end;
* _7 P7 Y! G+ \' N& Q# O' P% S' Q (3) repeat
! g6 R2 }- g3 M% G <statement sequence1>;8 }. G' M# W1 Q) q3 v k# U
until <condition>; W+ R" Z( e& _: l v$ b
(4) for <condition> to <condition> loop4 I4 Z+ r. k; l, l" ?/ _2 b
<statement sequence1>;+ b7 c2 a2 O& z% [3 i" c4 G
next;
% C) e; b4 f2 W3中断语句; M' S( Y8 s( I# q. @' A( {
waituntil <condition> prio <integer expression>;( w& F' l$ m! w5 Q" B) @6 a( T0 P
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以上为常用的函数！
% ]8 o4 w5 K7 O5 I% G1 {. u; i还有很多，如有需要我把资料发到你邮箱里 # T$ P V \ d9 l% e7 v
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