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发表于 2012-11-13 08:48:12
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1判断语句
3 Q! `! C8 v0 o9 j' J2 `3 e6 p if <condition> then- S) o: {: h0 A
<statement sequence1>;5 R. r+ L4 Y0 e( E! W$ f: Y
elseif <condition> then
% s5 w! h$ N. \1 O. x5 v0 O <statement sequence2>;) @" @& o4 Q/ T
else
. ]# M. H6 q' N/ G2 T7 w# T; D1 F3 d <statement sequence3>;6 u) X# n1 f* N% X) p9 a% S) W! e
end;
* ]+ E$ E' |6 S如果分支比较多，用：! k$ N" ]: G7 b9 [' i7 ?
inspect <expression>
* c, m: z5 U2 f0 n- \/ o when <constant_list> then1 l& s7 {. J4 K9 X$ s7 i% {8 e
<statement sequence1>;
+ u! y/ U/ i8 M. \ when <constant_list> then
/ s# g* R, _4 |" E- s <statement sequence2>;
7 [- P. B( D! m+ M9 e ...
8 n: y) [4 Z. l* D1 u# Y' k else0 ?6 q& | z7 R$ _/ I
<statement sequence3>;
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2循环语句/ e2 b/ Y; J- k1 R1 T# x
(1) from <statement sequence1>
* D+ f8 q5 o- @) O# s9 q6 V- H until <condition> loop
: e5 N; P2 }, H/ ? <statement sequence2>;9 e# V% |# O8 N: ]1 l* W! q
end;, y' c. m! k Y- H
(2) while <condition> loop
, q5 L1 [7 G& ]* h9 D/ }# J$ m1 q j/ a <statement sequence1>;
% |9 L z+ u9 W$ {6 X4 I% ] end;
8 @$ R* F4 a' {* v3 O, ?4 |% a (3) repeat . u/ W( t) e, z, n+ v- `5 h
<statement sequence1>;7 K. k' T( [2 N! A/ N! Y8 k
until <condition>;
; o" `$ C- {/ p! L" h4 X0 x (4) for <condition> to <condition> loop
k8 b6 ?* d' \" \6 O. [) i- `5 u7 {. g <statement sequence1>;# l' Q% f9 u' {' A+ \, i9 ?
next;) C3 F& R0 X O# m# a" \
3中断语句4 {1 K! y& a! s7 g8 R9 d! s# V7 a
waituntil <condition> prio <integer expression>;
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/ |4 l' |$ p$ ]6 |0 I5 \; x1 ?2 u以上为常用的函数！
8 W' ?0 m- u" \" @/ `7 f0 l还有很多，如有需要我把资料发到你邮箱里 6 I+ d% O- s" }1 }% l2 B4 _
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